6.8. ISIS Commands

6.8.1. accept-lifetime

Command Purpose

Use this command to specify the time period during which the authentication on a key chain is received as valid.

Use the no parameter with this command to negate this command.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

accept-lifetime HH:MM:SS DAY MONTH YEAR HH1:MM1:SS1 DAY1 MONTH1 YEAR1

accept-lifetime HH:MM:SS MONTH DAY YEAR infinite

accept-lifetime HH:MM:SS MONTH DAY YEAR duration <1-2147483646>

no accept-lifetime

Parameter	Parameter Description	Parameter Value
HH:MM:SS	Specify the end time of accept-lifetime in hours, minutes and seconds.	0-23:0-59:0-59
DAY	Specify the day of the month to end.	1-31
MONTH	Specify the month of the year to end as the first three letters of the month, for example, december.	january, february, march, april, may, june, july, august, september, october, november, december
YEAR	Specify the year to end.	1993-2035
HH1:MM1:SS1		0-23:0-59:0-59
DAY1	-	1-31
MONTH1	-	january, february, march, april, may, june, july, august, september, october, november, december
YEAR1	-	1993-2035
<1-2147483646>	Specify the actual end time duration of a key in seconds.	1-2147483646

Command Mode

Key Chain Configuration

Default

None

Usage

None

Examples

The follow example shows how to specify the time period during which the authentication on a key chain is received as valid.:

Switch# configure terminal
Switch(config)# key chain mychain
Switch(config-keychain)# key 1
Switch(config-keychain-key)# accept-lifetime 03:03:01 Dec 3 2023 04:04:02 Oct 6 2023

6.8.2. address-family ipv6

Command Purpose

Use this command to enter ‘address-family ipv6’ mode, where users can configure IPv6 routing specific configuration.

Use the no parameter with this command to remove all configuration under ‘address-family ipv6’.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

address-family ipv6 ( unicast | )

no address-family ipv6 ( unicast | )

Parameter	Parameter Description	Parameter Value
unicast	Specify unicast routing for IPv6.	-

Command Mode

Router Configuration

Default

None

Usage

None

Examples

The following example shows how to to enter ‘address-family ipv6’ mode:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# address-family ipv6 unicast
Switch(config-router-af)#

Related Commands

None

6.8.3. adjacency-check

Command Purpose

Use this command to configure the policy of adjacency based on the protocol related TLVs in the Hello packet. Check adjacency with protocol related TLVs including Protocols Supported TLV or IP Interface Address TLV by default. The command with no parameter disables this check.

Use the no parameter with this command to disable the adjacency check.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

adjacency-check

no adjacency-check

Command Mode

Router Configuration

Address Family Configuration

Default

Enabled

Usage

None

Examples

The following example shows how to to enable adjacency check:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# adjacency-check

Related Commands

None

6.8.4. area-password

Command Purpose

Use this command to set the authentication password for the Level-1 area and to set authentication on Level-1 SNP PDUs. This command enables authentication when receiving and sending LSP and SNP PDU in Level-1 areas. Area password must be the same for all the routers in the same area.

Use the no parameter with this command to clear the area password.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

area-password PASSWORD

area-password WORD authenticate snp ( send-only | validate )

no area-password

Parameter	Parameter Description	Parameter Value
PASSWORD	Specify the password string.	Up to 254 characters
authenticate	Specify to insert the password into Level-1 SNP PDUs.	-
snp	Specify the sequence number PDU (SNP).	-
send-only	Specify to only insert the password into the Level-1 SNP PDUs, but not check the password in SNP PDUs that it receives. Use this keysword during a software upgrade to ease the transition.	-
validate	Specify to insert the password into the Level-1 SNP PDUs and check the password in SNPs that it receives.	-

Command Mode

Router Configuration

Default

Not configured

Usage

None

Examples

The following example shows how to set the authentication password for the Level-1 area:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# area-password code1234
Switch(config-router)# no area-password

Related Commands

None

6.8.5. authentication key-chain

Command Purpose

Use this command to set the key chain to be used for authentication at the instance level. Authentication mode must be set to md5 to configure the key chain. If no key chain is configured with the key-chain command, no key-chain authentication is performed.

Only one authentication key-chain is applied to an interface at a time. That is, issuing a second isis authentication key-chain command overrides the first isis authentication key-chain command. Authentication can be specified for an individual interface using the isis authentication key-chain command.

Use the no parameter with this command to unset the key chain used for authentication.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

authentication key-chain WORD ( level-1 | level-2 | )

no authentication key-chain PASSWORD ( level-1 | level-2 | )

no authentication key-chain ( level-1 | level-2 | )

Parameter	Parameter Description	Parameter Value
WORD	Specify the chain name (valid authentication keys).	A String of key chain name
level-1	Specify an authentication key-chain for level-1 PDUs.	-
level-2	Specify an authentication key-chain for level-2 PDUs.	-

Command Mode

Router Configuration

Default

Disabled

Usage

If neither the level-1 nor the level-2 keysword is configured, it applies to both levels.

Examples

The following example shows how to set the key chain to be used for authentication at the level-1:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# authentication key-chain code1234 level-1

Related Commands

None

6.8.6. authentication mode md5

Command Purpose

Use this command to set the MD5 authentication mode at the instance level.

If clear-text authentication was configured using the area-password or domain-password commands, the authentication mode command overrides both of those commands (based on the level at which MD5 is configured). If the authentication mode command was used first, and subsequently an attempt is made to use the area-password or domain-password commands, the attempt fails. To configure clear-text authentication using the area-password or domain-password commands, first use the no authentication mode command.

The type of authentication and the level to which it applies can be specified for a single interface, rather than per instance, using the isis authentication mode command.

Use the no parameter with this command to unset the MD5 authentication mode.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

authentication mode ( md5 | text ) ( level-1 | level-2 | )

no authentication mode ( md5 | text ) ( level-1 | level-2 | )

Parameter	Parameter Description	Parameter Value
md5	Keyed message digest	-
text	Text mode	-
level-1	Specify an authentication key-chain for level-1 PDUs.	-
level-2	Specify an authentication key-chain for level-2 PDUs.	-

Command Mode

Router Configuration

Default

Disabled

Usage

If neither the level-1 nor the level-2 keysword is configured, it applies to both levels.

Examples

The following example shows how to set the MD5 authentication mode at the level-1:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# authentication mode md5 level-1
Switch(config-router)# no authentication mode md5 level-1

Related Commands

None

6.8.7. authentication send-only

Command Purpose

Use this command to set the send-only option at the instance level.

Use this command before configuring the authentication mode and authentication key-chain, so that the implementation of authentication goes smoothly.

After all routers that must communicate are configured with this command, enable the authentication mode and key chain on each router. Then, specify the no authentication send-only command to disable the send-only feature.

If neither the level-1 nor level-2 keysword is configured, the send-only feature applies to both levels.The send-only option applies to both levels if no level is specified.

Use the no parameter with this command to unset the send-only option.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

authentication send-only ( level-1 | level-2 | )

no authentication send-only ( level-1 | level-2 | )

Parameter	Parameter Description	Parameter Value
level-1	Specify an authentication key-chain for level-1 PDUs.	-
level-2	Specify an authentication key-chain for level-2 PDUs.	-

Command Mode

Router Configuration

Default

Disabled

Usage

If neither the level-1 nor the level-2 keysword is configured, it applies to both levels.

Examples

The following example shows how to set the send-only option at the level-1.:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# authentication send-only level-1
Switch(config-router)# no authentication send-only level-1

Related Commands

None

6.8.8. bfd all-interfaces

Command Purpose

Use this command to enable the Bidirectional Forwarding Detection (BFD) feature on the interfaces enabled with this ISIS instance.

This command sets BFD fall-over check for all the neighbors under specified process. To disable BFD checking on particular interface use isis bfd disable command at interface mode.

Use the no parameter with this command to disable BFD functionality for an instance.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

bfd all-interfaces

no bfd all-interfaces

Command Mode

Router Configuration

Default

Disabled

Usage

None

Examples

The following example shows how to enable the BFD feature on the interfaces enabled with this ISIS instance.:

Switch# configure terminal
Switch(config)# router isis
Switch(config-router)# bfd all-interfaces

Related Commands

None

6.8.9. clear clns neighbors

Command Purpose

Use this command to clear CLNS neighbor adjacencies.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

clear clns neighbors

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

The example shows how to clear CLNS neighbor adjacencies.:

Switch# clear clns neighbors

Related Commands

None

6.8.10. clear clns is-neighbors

Command Purpose

Use this command to clear IS neighbor adjacencies.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

clear clns is-neighbors System-ID

Parameter	Parameter Description	Parameter Value
System-ID	Neighbor system ID in XXXX.XXXX.XXXX format.	hexadecimal

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

The example shows how to clear IS neighbor adjacencies.:

Switch# clear clns is-neighbors 1234.789A.BCDF

Related Commands

None

6.8.11. clear ip isis route

Command Purpose

Use this command to clear IPv4 routes.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

clear ip isis ( INSTANCE | ) route ( redistribution | all )

Parameter	Parameter Description	Parameter Value
INSTANCE	Routing area tag.	Up to 20 characters
redistribution	Clear ISIS local redistribution routes.	-
all	Clear all of the ISIS routing table.s	-

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

The example shows how to clear ISIS IPv4 routes.:

Switch# clear ip isis route all

Related Commands

None

6.8.12. clear isis counter

Command Purpose

Use this command to clear system-wide IS-IS counters

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

clear isis counter

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

The example shows how to clear system-wide IS-IS counters.:

Switch# clear isis counter

Related Commands

None

6.8.13. clear isis interface counter

Command Purpose

Use this command to clear interface counters.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

clear isis interface counter ( IFNAME | )

Parameter	Parameter Description	Parameter Value
IFNAME	Interface name.	Supportphysical/aggregation/loopback/vlan/tunnelports

Command Mode

Privileged EXEC

Default

None

Usage

If you do not specify a parameter, then counters for all interfaces are cleared.

Examples

The example shows how to clear clear interface counters.:

Switch# clear isis interface counter

Related Commands

None

6.8.14. clear isis process

Command Purpose

Use this command to restart ISIS processes.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

clear isis ( INSTANCE | ) process

Parameter	Parameter Description	Parameter Value
INSTANCE	Routing area tag.	Up to 20 characters

Command Mode

Privileged EXEC

Default

None

Usage

If you do not specify a parameter, then all ISIS processes are restarted.

Examples

The example shows how to restart ISIS processes.:

Switch# clear isis process

Related Commands

None

6.8.15. debug isis

Command Purpose

Use this command to turn on debugging for specified criteria. Debug commands enable to show some debugging information about specified criteria into file or terminal.

Use the no parameter to turn off debugging for specified criteria.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

debug isis ( all | )

no debug isis ( all | )

no debug all

no debug all isis

undebug all

undebug isis ( all | )

undebug all isis

Parameter	Parameter Description	Parameter Value
all	Enables all debugging.	-
authentication	Debugging for authentication.	-
checksum	Debugging for checksums.	-
bfd	Debugging for bidirectional forwarding detection.	-
events	Debugging for internal events.	-
hello	Debugging for hello processing.	-
interface	Interface.	-
IFNAME	Interface name.	Supportphysical/aggregation/loopback/vlan/tunnelports
System-ID	System identifier.	-
ifsm	Debugging for interface finite state machine.	-
local-updates	Debugging for local updates.	-
lsp	Debugging for label switched path.	-
nfsm	Debugging for neighbor finite state machine.	-
nsm	Debugging for NSM messages.	-
pdu	Debugging for protocol data unit.	-
protocol-errors	Debugging for protocol errors.	-
spf	Debugging for shortest path first route calculation.	-

Command Mode

Privileged EXEC

Default

Disabled

Usage

None

Examples

The example shows how to enable all isis debugging.:

Switch# debug isis all

Related Commands

None

6.8.16. default-information originate

Command Purpose

Use this command to originate reachability information to Default destination into LSP.There is no default information in Level-2 domain by default, while Level-1 router calculates default to L1L2 route SPF calculation. This command enables to originate default route into Level-2 domain.

Use the no parameter with this command to withdraw reachability information to default destination from LSP.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

default-information originate

no default-information originate

Parameter	Parameter Description	Parameter Value
originate	Specify to distribute a default route	-

Command Mode

Router Configuration

Address Family Configuration

Default

Disabled

Usage

None

Examples

The following example shows how to originate reachability information to Default destination into LSP both ipv4 and ipv6:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# default-information originate
Switch(config-router)# address-family ipv6
Switch(config-router)# default-information originate

Related Commands

None

6.8.17. distance

Command Purpose

Use this command in router mode to set the administrative distance for all IPv4 routes.

Use the no parameter with this command to remove an administrative distance.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

distance DISTANCE ( System-ID ( ACL | ) | )

no distance ( ( System-ID | System-ID ACL ) | )

Parameter	Parameter Description	Parameter Value
DISTANCE	Distance range.	1-255
System-ID	Source ID in XXXX.XXXX.XXXX format.	hexadecimal
ACL	Access-list name.	Up to 40 characters

Command Mode

Router Configuration

Default

None

Usage

None

Examples

The following example shows how to set the administrative distance for all ISIS IPv4 routes:

Switch# configure terminal
Switch(config)# router isis
Switch(config-router)# distance 40

Related Commands

None

6.8.18. domain-password

Command Purpose

Use this command to set the authentication password for the Level-2 domain, and optionally, the authentication password on Level-2 SNP PDUs. Configuring this command to enable authentication when receiving and sending LSP and SNP PDU in Level-2 domain. Domain password must be the same in Level-2 domain.

Use the no parameter with this command to clear the domain password.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

domain-password PASSWORD

domain-password PASSWORD authenticate snp ( send-only | validate )

no domain-password

Parameter	Parameter Description	Parameter Value
PASSWORD	The password string.	Up to 254 characters
authenticate	Inserts the password into Level-2 SNP PDUs.	-
snp	SNP PDUs.	-
send-only	Only inserts the password into the Level-2 SNP PDUs, but does not check the password in SNP PDUs that it receives. Use this keysword during a software upgrade to ease the transition.	-
validate	Inserts the password into the Level-2 SNP PDUs, and checks the password in SNP PDUs that it receives.	-

Command Mode

Router Configuration

Default

By default, there is no domain password.

Usage

None

Examples

The following example shows how to set the authentication password for the Level-2 domain:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# domain-password mypasswd
Switch(config-router)# no domain-password

Related Commands

None

6.8.19. ignore-lsp-errors

Command Purpose

Use this command to ignore LSPs with checksum errors. By default, validates checksum for LSP whenever it receives LSPs and if the checksum has an error, the LSP will be dropped. Configuring this command to ignore the LSP checksum error and treat it as if checksum is passed.

Use the no parameter to turn off this function.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

ignore-lsp-errors

no ignore-lsp-errors

Command Mode

Router Configuration

Default

Disabled

Usage

None

Examples

The following example shows how to ignore LSPs with checksum errors:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# ignore-lsp-errors

Related Commands

None

6.8.20. ip route high-priority tag

Command Purpose

Use this command to set a high priority tag value.

Use the no parameter to turn off this function.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

ip route high-priority tag TAG

no ip route high-priority tag

Parameter	Parameter Description	Parameter Value
TAG	Tag value	1-4294967295

Command Mode

Router Configuration

Default

Disabled

Usage

None

Examples

The following example shows how to set a high priority tag value.:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# ip route high-priority tag 500

Related Commands

None

6.8.21. ip router isis

Command Purpose

Use this command to enable IPv4 routing on the interface. This command is mandatory to configuration. Match the instance tag to one of existing instance’s tags, or a new instance with the tag name should be initiated, otherwise routing will not run on this interface.

Configuring this command, the router sends Hello with IP address TLV on this interface, and IP reachability information TLV in the LSP will be updated.

Use the no parameter with this command to disable IPv4 routing on the interface. This action does not clear the database. To clear the database, unconfigure the routing instance.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

ip router isis ( INSTANCE | )

no ip router isis ( INSTANCE | )

Parameter	Parameter Description	Parameter Value
INSTANCE	instance name.	Up to 20 characters

Command Mode

Interface Configuration

Default

Disabled

Usage

None

Examples

The following example shows how to enable ISIS IPv4 routing on the interface:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# ip router isis bb

Related Commands

None

6.8.22. ipv6 router isis

Command Purpose

Use this command to enable IPv6 routing on the interface. This command is mandatory to IPv6 configuration. Match the instance tag to one of existing instance’s tags, or a new instance with the tag name should be initiated, otherwise routing will not run on this interface.

Configuring this command, the router sends Hello with IPv6 address TLV on this interface, and IPv6 reachability information TLV in the LSP will be updated.

Use the no parameter with this command to disable IPv6 routing on the interface.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

ipv6 router isis ( INSTANCE | )

no ipv6 router isis ( INSTANCE | )

Parameter	Parameter Description	Parameter Value
INSTANCE	instance name.	Up to 20 characters

Command Mode

Interface Configuration

Default

Disabled

Usage

None

Examples

The following example shows how to enable ISIS IPv6 routing on the interface:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# ipv6 router isis bb

Related Commands

None

6.8.23. isis authentication key-chain

Command Purpose

Use this command to set the key chain to be used for authentication on the interface-related packets.

Authentication mode must be set to md5 or text to configure the key chain. If no key chain is configured with the key-chain command, no key-chain authentication is performed. Only one authentication key-chain is applied to an interface at a time. That is, issuing a second isis authentication key-chain command overrides the first isis authentication key-chain command.

If neither the level-1 nor level-2 keysword is configured, the key chain applies to the level(s) on which the authentication mode is configured as md5. Authentication can be specified for an entire, instead of at the interface level, by using the authentication key-chain command.

Use the no parameter with this command to unset the key chain used for authentication on the interface-related packets.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

isis authentication key-chain KEY_NAME ( level-1 | level-2 | )

no isis authentication key-chain ( level-1 | level-2 | )

no isis authentication key-chain KEY_NAME ( level-1 | level-2 | )

Parameter	Parameter Description	Parameter Value
KEY_NAME	Chain name - valid authentication keys.	A String of key chain name
level-1	Specify an authentication key-chain for level-1 PDUs.	-
level-2	Specify an authentication key-chain for level-2 PDUs.	-

Command Mode

Interface Configuration

Default

Disabled

Usage

The key chain applies to the level(s) on which authentication mode is configured as MD5 if no level is specified.

Examples

The following example shows how to set the key chain to be used for authentication on the interface-related packets:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# isis authentication key-chain code1234 level-1

Related Commands

None

6.8.24. isis authentication mode md5

Command Purpose

Use this command to set the MD5 authentication mode. If clear text authentication was configured using the isis password command, the isis authentication mode command overrides the isis password command. If the isis authentication mode command was used, then subsequently an attempt is made to use the isis password command, the attempt fails.

To configure clear text authentication using the isis password command, first use the no isis authentication mode command. The type of authentication and the level to which it applies can be specified for the entire instance, rather than per interface, using the authentication mode command.

Use the no parameter with this command to unset the MD5 authentication mode.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

isis authentication mode ( md5 | text ) ( level-1 | level-2 | )

no isis authentication mode ( md5 | text ) ( level-1 | level-2 | )

Parameter	Parameter Description	Parameter Value
md5	Keyed message digest	-
text	Text mode	-
level-1	Specify an authentication key-chain for level-1 PDUs.	-
level-2	Specify an authentication key-chain for level-2 PDUs.	-

Command Mode

Interface Configuration

Default

Disabled

Usage

The send-only option applies to both levels if no level is specified.

Examples

The following example shows how to set the MD5 authentication mode.:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# isis authentication mode md5

Related Commands

None

6.8.25. isis authentication send-only

Command Purpose

Use this command to set the send-only option to the interface-related packets.

Use this command before configuring the ISIS authentication mode and ISIS authentication key-chain, so that the implementation of authentication goes smoothly. That is, the routers will have more time for the keys to be configured on each router if authentication is inserted only on the packets being sent, not checked on packets being received.

After all routers that must communicate are configured with this command, enable the authentication mode and key chain on each router.

Use the no parameter with this command to unset the send-only option to the interface-related packets.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

isis authentication send-only ( level-1 | level-2 | )

no isis authentication send-only ( level-1 | level-2 | )

Parameter	Parameter Description	Parameter Value
level-1	Specify an authentication key-chain for level-1 PDUs.	-
level-2	Specify an authentication key-chain for level-2 PDUs.	-

Command Mode

Interface Configuration

Default

Disabled

Usage

The send-only option applies to both levels if no level is specified.

Examples

The following example shows how to set the send-only option to the interface-related packets.:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# isis authentication send-only

Related Commands

None

6.8.26. isis bfd

Command Purpose

Use this command to enable/disable the BFD check on interface.

The isis bfd command allows a user to enable BFD on an interface. The isis bfd disable command disables BFD checking on an interface. However, the no isis bfd and no isis bfd disable commands both remove the enable/disable configuration, but do not disable/enable BFD.

The bfd all-interfaces command enables BFD on all interfaces attached to an instance then configuring. This command disables BFD configuration on a particular interface.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

isis bfd ( disable | )

no isis bfd ( disable | )

Parameter	Parameter Description	Parameter Value
disable	Specify to disable BFD.	-

Command Mode

Interface Configuration

Default

Disabled

Usage

None

Examples

The following example shows how to disable bfd on ISIS interface.:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# isis bfd disable

Related Commands

None

6.8.27. isis circuit-type

Command Purpose

Use this command to set the circuit type for the interface.

If level-1 or level-2-only is specified in this command, sends only the specified level of PDUs.

Use the no parameter to reset circuit type to the default.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

isis circuit-type ( level-1 | level-1-2 | level-2-only )

no isis circuit-type

Parameter	Parameter Description	Parameter Value
level-1	Specify that only Level-1 adjacencies are formed.	-
level-1-2	Specify that Level-1-2 adjacencies are formed.	-
level-2-only	Specify that only Level-2 adjacencies are formed.	-

Command Mode

Interface Configuration

Default

Eabled level-1 and level-2.

Usage

None

Examples

The following example shows how to set the circuit type for the interface:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# isis circuit-type level-2-only

Related Commands

None

6.8.28. isis csnp-interval

Command Purpose

Use this command to set CSNP (Complete sequence number PDU) interval in seconds.

Configuring this command changes the interval between two consecutive CSNP transmission. By default, CSNP is sent every 10 seconds only by LAN DIS. This parameter is only valid on broadcast interface, since periodic CSNP is only sent on broadcast interface, while CSNP on Point-to-Point interface is sent only when adjacency is initiated.

Use the no parameter with this command to reset CSNP interval to the default value.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

isis csnp-interval INTERVAL ( level-1 | level-2 | )

no isis csnp-interval ( level-1 | level-2 | )

no isis csnp-interval <1-65535> ( level-1 | level-2 | )

Parameter	Parameter Description	Parameter Value
INTERVAL	Specify the CSNP interval in seconds.	1-65535
level-1	Specify Level-1 CSNP.	-
level-2	Specify Level-2 CSNP.	-

Command Mode

Interface Configuration

Default

10 seconds level-1 and level-2.

Usage

None

Examples

The following example shows how to set CSNP (Complete sequence number PDU) interval.:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# isis csnp-interval 20

Related Commands

None

6.8.29. isis hello

Command Purpose

Use this command to configure the padding of the Hello packet. pads the Hello packet by default to notify neighbors of the supported MTU size.

Use the no parameter with this command to disable the padding.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

isis hello padding

no isis hello padding

Parameter	Parameter Description	Parameter Value
padding	Specify pad hello packets	-

Command Mode

Interface Configuration

Default

By default, pads the Hello packet.

Usage

None

Examples

The following example shows how to configure the padding of the Hello packet.:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# isis hello padding

Related Commands

None

6.8.30. isis hello-interval

Command Purpose

Use this command to set the Hello interval in seconds. The Hello-interval is set with the hello-multiplier (see isis hello-multiplier command).

Configuring this command changes the time interval between two consecutive Hello transmissions. If a device receives its own LSP with a maximum sequence number, then it suspends for the hold interval. DIS sends Hello transmissions at three times the rate than non-DIS. If is elected as DIS on this interface, sends Hello every 3.3 seconds.

If minimal keysword is specified, Holding timer in Hello PDU is set to 1 second and Hello interval is calculated by dividing by the hello-multiplier. For example, if the hello-multiplier is configured as 4 and hello-interval minimal is the command used, an Hello PDU is sent every 250 milliseconds.

Use the no parameter to set the Hello interval to the default.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

isis hello-interval INTERVAL ( level-1 | level-2 | )

isis hello-interval minimal ( level-1 | level-2 | )

no isis hello-interval ( level-1 | level-2 | )

no isis hello-interval <1-65535> ( level-1 | level-2 | )

no isis hello-interval minimal ( level-1 | level-2 | )

Parameter	Parameter Description	Parameter Value
INTERVAL	Specify the hello interval in seconds.	1-65535
minimal	Specify the holding-time as 1 second.	-
level-1	Specify Level-1 CSNP.	-
level-2	Specify Level-2 CSNP.	-

Command Mode

Interface Configuration

Default

By default, uses 10 seconds for the interval and the interval is applied to both level-1 and level-2.

Usage

If neither the level-1 nor the level-2 keysword is configured, it applies to both levels.

Examples

The following example shows how to set the Hello interval.:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# isis hello-interval 5 level-1

Related Commands

isis hello-multiplier

6.8.31. isis hello-multiplier

Command Purpose

Use this command to set multiplier for Hello holding time.

Changes Holding Timer in Hello PDU. Holding timer is calculated by “Hello-Interval” multiplied by this value. If minimal keysword is specified with the Hello-Interval, the holding timer is set to 1 second and the hello-interval is calculated by dividing 1 by this value.

Use the no parameter with this command to set multiplier to the default.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

isis hello-MULTIPLIER <2-100> ( level-1 | level-2 | )

no isis hello-multiplier ( level-1 | level-2 | )

no isis hello-multiplier <2-100> ( level-1 | level-2 | )

Parameter	Parameter Description	Parameter Value
MULTIPLIER	Specify a hello multiplier value.	2-100
level-1	Specify Level-1 hello.	-
level-2	Specify Level-2 hello.	-

Command Mode

Interface Configuration

Default

By default, uses 3 seconds for the multiplier value and the multiplier is applied to both level-1 and level-2.

Usage

If neither the level-1 nor the level-2 keysword is configured, it applies to both levels.

Examples

The following example shows how to set multiplier for Hello holding time:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# isis hello-multiplier 4

Related Commands

None

6.8.32. isis lsp-interval

Command Purpose

Use this command to set the Link State Packet (LSP) transmission interval.

Configuring this command changes the minimum interval between two consecutive LSP transmission. When flooding or some other event triggers LSP to transmit, the LSP is put on the interface queue and scheduled to transmit according to this interval. Two consecutive LSP transmissions are scheduled to have at least this interval.

Use the no parameter with this command to set LSP transmission interval to the default.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

isis lsp-interval INTERVAL

no isis lsp-interval

Parameter	Parameter Description	Parameter Value
INTERVAL	Specify an LSP transmission interval in milliseconds.	1-4294967295

Command Mode

Interface Configuration

Default

By default, 33 milliseconds for the interval.

Usage

None

Examples

The following example shows how to set the Link State Packet (LSP) transmission interval:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# isis lsp-interval 100

Related Commands

None

6.8.33. isis mesh-group

Command Purpose

Use this command to set Mesh Group ID on the current interface.

Use the no parameter to unset mesh group on the current interface.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

isis mesh-group MESH_GROUP

isis mesh-group blocked

no isis mesh-group

Parameter	Parameter Description	Parameter Value
MESH_GROUP	Specify a mesh group number	1-4294967295
blocked	Specify to block LSPs on the current interface. If an interface is configured as mesh group blocked, the standard LSP database synchronization process is applied if the interface receives CSNP or PSNP.	-

Command Mode

Interface Configuration

Default

By default, mesh groups are not enabled on this interface.

Usage

None

Examples

The following example shows how to set Mesh Group ID on the current interface :

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# isis mesh-group 20

Related Commands

None

6.8.34. isis metric

Command Purpose

Use this command to set default metric for the interface. The interface default metric is put into IP reachability information TLVs, IS reachability information TLVs and IPv6 reachability TLVs in LSPs. The value is used for SPF calculation.

Use the no parameter with this command to set default metric to the default.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

isis metric METRIC ( level-1 | level-2 | )

Parameter	Parameter Description	Parameter Value
METRIC	Specify a default metric.	1-16777214
level-1	Specify default metric for level-1 circuit.	-
level-2	Specify default metric for level-2 circuit.	-

Command Mode

Interface Configuration

Default

By default, uses 10 for the metric value and the value is applied to both level-1 and level-2.

Usage

If neither the level-1 nor the level-2 keysword is configured, it applies to both levels.

Examples

The following example shows how to set default metric for the interface:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# isis metric 20

Related Commands

None

6.8.35. isis network

Command Purpose

Use this command to change a broadcast interface network type to a point-to-point network type.

Use the no parameter with this command to revert to the default setting of a broadcast interface network type.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

isis network point-to-point

no isis network ( point-to-point | )

Parameter	Parameter Description	Parameter Value
point-to-point	Specify a point-to-point network.	-

Command Mode

Interface Configuration

Default

This option is disabled by default.

Usage

None

Examples

The following example shows how to change a broadcast interface network type to a point-to-point network type:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# isis network point-to-point

Related Commands

None

6.8.36. isis password

Command Purpose

Use this command to set the authentication password of Hello PDU on the interface.

Use the no parameter to clear the password.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

isis password PASSWORD ( level-1 | level-2 | )

no isis password ( level-1 | level-2 | )

no isis password PASSWORD ( level-1 | level-2 | )

Parameter	Parameter Description	Parameter Value
PASSWORD	Specify a password string.	Up to 254 characters
level-1	Specify a password for Level-1 hello PDUs.	-
level-2	Specify a password for Level-2 hello PDUs.	-

Command Mode

Interface Configuration

Default

By default, no password is configured; this applies to both level-1 and level-2.

Usage

If neither the level-1 nor the level-2 keysword is configured, it applies to both levels.

Examples

The following example shows how to set the authentication password of Hello PDU on the interface:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# isis password mypassWORD level-1

Related Commands

None

6.8.37. isis priority

Command Purpose

Use this command to set the priority for LAN DIS election. This command changes the priority value in LAN Hello PDUs. A lower priority value is less preferred in DIS election, and a higher priority value is more preferred.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

isis priority PRIORITY ( level-1 | level-2 | )

no isis priority ( level-1 | level-2 | )

no isis priority <0-127> ( level-1 | level-2 | )

Parameter	Parameter Description	Parameter Value
PRIORITY	Priority value	0-127
level-1	Specify a priority for Level-1 hello PDUs.	-
level-2	Specify a priority for Level-2 hello PDUs.	-

Command Mode

Interface Configuration

Default

By default, uses 64 for the priority value, and the priority is applied to both level-1 and level-2.

Usage

If neither the level-1 nor the level-2 keysword is configured, it applies to both levels.

Examples

The following example shows how to set the priority for LAN DIS election:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# isis priority 127

Related Commands

None

6.8.38. isis retransmit-interval

Command Purpose

Use this command to set LSP retransmission interval.

Use the no parameter to set the interval to the default.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

isis retransmit-interval INTERVAL

no isis retransmit-interval

Parameter	Parameter Description	Parameter Value
INTERVAL	Specify an interval for retransmission of the same LSP in seconds.	0-65535

Command Mode

Interface Configuration

Default

5 seconds.

Usage

None

Examples

The following example shows how to set LSP retransmission interval:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# isis retransmit-interval 10
Switch(config-if)# no isis retransmit-interval

Related Commands

None

6.8.39. isis tag

Command Purpose

Use this command to set the tag for link-state packets (LSPs) sent out advertising routes for networks directly connected to an interface.

If you do not specify a parameter, then the tag value is set for level-1-2 boundary.

Use the no parameter to unset the tag.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

isis tag TAG ( level-1 | level-2 | )

no isis tag

Parameter	Parameter Description	Parameter Value
TAG	Tag value.	1-4294967295
level-1	Specify the tag value for the level-1 boundary.	-
level-2	Specify the tag value for the level-2 boundary.	-

Command Mode

Interface Configuration

Default

This option is disabled by default.

Usage

None

Examples

The following example shows how to the tag for link-state packets (LSPs) sent out advertising routes for networks directly connected to an interface.:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# isis tag 500 level-1

Related Commands

None

6.8.40. ispf

Command Purpose

Use this command to enable incremental SPF for a routing process.

Use the no parameter to disable incremental SPF from a routing process.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

ispf

ispf ( level-1 | level-1-2 | level-2-only )

no ispf

Parameter	Parameter Description	Parameter Value
level-1	Act as level-1 only IS.	-
level-1-2	Act as level-1-2 IS.	-
level-2-only	Act as level-2 only IS.	-

Command Mode

Router Configuration

Default

None

Usage

None

Examples

The following example shows how to enable incremental SPF for a routing process:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# ispf level-1

Related Commands

None

6.8.41. is-type

Command Purpose

To configure the routing level for an instance of the Intermediate System-to-Intermediate System (IS-IS) routing process, use the is-type command in router configuration mode.

Use the no parameter to set the IS to the default.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

is-type ( level-1 | level-1-2 | level-2-only )

no is-type

Parameter	Parameter Description	Parameter Value
level-1	Act as level-1 only IS.	-
level-1-2	Act as level-1-2 IS.	-
level-2-only	Act as level-2 only IS.	-

Command Mode

Router Configuration

Default

By default, uses level-1-2 if there is no Level-2 instance nor a Level-1-2 instance. Otherwise, it uses level-1.

Usage

None

Examples

The following example shows how to configure the routing level for an ISIS instance:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# is-type level-1

Related Commands

None

6.8.42. lsp-gen-interval

Command Purpose

Use this command to set minimum interval before regenerating the same LSP. The smaller the interval, the faster the convergence. However, this setting might cause more frequent flooding.

Use the no parameter with this command to set the interval to the default.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

lsp-gen-interval INTERVAL

lsp-gen-interval ( level-1 | level-2 ) <1-120>

no lsp-gen-interval

Parameter	Parameter Description	Parameter Value
INTERVAL	Specify a minimum interval in seconds.	1-120
level-1	Specify an interval for Level-1 IS.	-
level-2	Specify an interval for Level-2 IS.	-

Command Mode

Router Configuration

Default

30 seconds for the interval and the interval is applied to both level-1 and level-2.

Usage

None

Examples

The following example shows how to set minimum interval before regenerating the same LSP:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# lsp-gen-interval 5

Related Commands

None

6.8.43. lsp-mtu

Command Purpose

Use this command to set LSP MTU in bytes.

Use the no parameter with this command to set the MTU to the default.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

lsp-mtu ( level-1 | level-2 | ) MTU

no lsp-mtu ( level-1 | level-2 | )

Parameter	Parameter Description	Parameter Value
MTU	Specify an MTU size	512-1492
level-1	Specify an interval for Level-1 IS.	-
level-2	Specify an interval for Level-2 IS.	-

Command Mode

Router Configuration

Default

None

Usage

If neither the level-1 nor the level-2 keysword is configured, it applies to both levels.

Examples

The following example shows how to set LSP MTU in bytes:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# lsp-mtu 555

Related Commands

None

6.8.44. lsp-refresh-interval

Command Purpose

Use this command to set the LSP refresh interval.

IP Infusion recommends making the lsp-refresh-interval smaller than max-lsp-lifetime value.

Use the no parameter to set the interval to the default value.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

lsp-refresh-interval INTERVAL

no lsp-refresh-interval

Parameter	Parameter Description	Parameter Value
INTERVAL	Specify an LSP refresh interval in seconds.	1-65535

Command Mode

Router Configuration

Default

900 seconds.

Usage

None

Examples

The following example shows how to set the LSP refresh interval:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# lsp-refresh-interval 600
Switch(config-router)# no lsp-refresh-interval

Related Commands

None

6.8.45. max-area-addresses

Command Purpose

Use this command to configure additional manual addresses for an IS-IS area.

Use the no parameter to disable the manual addresses.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

max-area-addresses NUMBER

no max-area-addresses

Parameter	Parameter Description	Parameter Value
NUMBER	Specify the maximum area address that can be supported	3-127

Command Mode

Router Configuration

Default

Usage

None

Examples

The following example shows how to configure additional manual addresses for an IS-IS area:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# max-area-address 4

Related Commands

None

6.8.46. max-lsp-lifetime

Command Purpose

Use this command to set the maximum LSP lifetime. You must set max-lsp-lifetime greater than lsp-refreshinterval.

Use the no parameter to set the lifetime to the default.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

max-lsp-lifetime LIFETIME

no max-lsp-lifetime

Parameter	Parameter Description	Parameter Value
LIFETIME	Specify an maximum LSP lifetime in seconds.	350-65535

Command Mode

Router Configuration

Default

1200 seconds.

Usage

None

Examples

The following example shows how to set the maximum LSP lifetime:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# max-lsp-lifetime 1500

Related Commands

None

6.8.47. metric-style

Command Purpose

Use this command to configure the metric style.

Use the no parameter to set the style to the default style, narrow.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

metric-style ( narrow | wide ) transition ( level-1 | level-1-2 | level-2 | )

Parameter	Parameter Description	Parameter Value
narrow	Specify the old style of TLVs with narrow metric.	-
wide	Specify the new style of TLVs to carry wider metric.	-
transition	Accept both styles of TLVs during transition	-
level-1	Specify the level-1 metric style.	-
level-2	Specify the level-2 metric style.	-
level-1-2	Specify the level-1-2 metric style.	-

Command Mode

Router Configuration

Default

By default, uses narrow metric style for level 1 and 2.

Usage

None

Examples

The following example shows how to configure the metric style:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# metric-style wide

Related Commands

None

6.8.48. net

Command Purpose

Use this command to configure an Intermediate System-to-Intermediate System (IS-IS) network entity title (NET) for the routing process, use the net command in router configuration mode. To remove a NET, use the no form of this command.

Use the no parameter to remove the NET.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

net NET

no net NET

Parameter	Parameter Description	Parameter Value
NET	Specify a network entity title (NET) in 1 to 13 octets	In XX.XXXX. … .XXXX.XX format

Command Mode

Router Configuration

Default

By default, does not configure a NET and routing is not enabled for the interface.

Usage

None

Examples

The following example shows how to configure an Intermediate System-to-Intermediate System (IS-IS) network entity title (NET) for the routing process:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# net 49.0000.0001.0002.0003.00

Related Commands

None

6.8.49. passive-interface

Command Purpose

Use this command to suppress routing updates on all interfaces or on a specified interface, which puts the interfaces into passive mode. To advertise passive prefixes in LSP, there is no need to have at an interface configured with ip router isis. Enabling passive interface on an ISIS enabled interface disables ISIS on the interface and makes the interface passive.

Use the no parameter with this command to remove interfaces from passive mode

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

passive-interface ( IFNAME | )

no passive-interface ( IFNAME | )

Parameter	Parameter Description	Parameter Value
IFNAME	Indicates an interface name.	Supportphysical/aggregation/loopback/vlan/tunnelports

Command Mode

Router Configuration

Default

None

Usage

None

Examples

The following example shows how to suppress routing updates on a specified interface:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# passive-interface eth-0-1

Related Commands

None

6.8.50. prc-interval-exp

Command Purpose

Use this command to configure exponential back-off delay between PRC calculations.

Use the no parameter to disable any set exponential back-off delay between PRC calculations.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

prc-interval-exp

prc-interval-exp EXP_MIN EXP_MAX

no prc-interval-exp

Parameter	Parameter Description	Parameter Value
EXP_MIN	Set the minimum delay between receiving a change to PRC calculation in milliseconds.	0-2147483647
EXP_MAX	Set the maximum delay between receiving a change to PRC calculation in milliseconds.	0-2147483647

Command Mode

Router Configuration

Default

Minimum Delay 500ms, Maximum Delay 50000ms

Usage

None

Examples

The following example shows how to configure exponential back-off delay between PRC calculations:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# prc-interval-exp 100 10000

Related Commands

None

6.8.51. redistribute

Command Purpose

Use this command to redistribute routes from another protocol into the ISIS routing table.

Use the no parameter to disable this function.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

redistribute ( connected | static | rip | ospf | bgp ) { metric METRIC | metrictype ( internal | external ) | level-1 | level-2 | level-1-2 | route-map ROUTE_MAP }

no redistribute ( connected | static | rip | ospf | bgp )

Parameter	Parameter Description	Parameter Value
connected	Redistribute connected routes.	-
static	Redistribute static routes.	-
rip	Redistribute RIP routes.	-
ospf	Redistribute OSPF routes.	-
bgp	Redistribute BGP routes.	-
metric	Specify the metric for redistributed routes.	-
METRIC	Specify the IS-IS default metric.	0-4261412864
metric-type	Specify the IS-IS exterior metric type for redistributed routes:	-
internal	Set IS-IS internal metric type.	-
external	Set IS-IS external metric type.	-
level-1	IS-IS Level-1 routes.	-
level-2	IS-IS Level-2 routes.	-
level-1-2	IS-IS Level-1 and Level-2 routes.	-
route-map	Specify a Route map reference.	-
ROUTE_MAP	Specify name of the route-map.	Up to 20 characters

Command Mode

Router Configuration

Default

None

Usage

None

Examples

The following example shows how to redistribute routes from another protocol into the ISIS routing table:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# redistribute bgp metric 12

Related Commands

None

6.8.52. redistribute isis

Command Purpose

Use this command to redistribute reachability information from one level to the other level. If an distribute-list name is given with this command for an access list that does not exist, the routes are still redistributed.

Use the no parameter with this command to stop redistribution.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

redistribute isis level-1 into level-2

redistribute isis level-2 into level-1

redistribute isis level-1 into level-2 distribute-list ACL

redistribute isis level-2 into level-1 distribute-list ACL

no redistribute isis level-1 into level-2

no redistribute isis level-2 into level-1

Parameter	Parameter Description	Parameter Value
level-1	Specify an inter-area route level-1.	-
level-2	Specify an inter-area routes level-2.	-
into	Specify a from level-n level into level-m.	-
distribute-list	Indicate the distributed-list parameter.	-
ACL	Access-list name	Up to 40 characters

Command Mode

Router Configuration

Address Family Configuration

Default

By default, redistributes selected level-1 routes into level-2

Usage

None

Examples

The following example shows how to redistributes level-2 routes into level-1:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# redistribute isis level-2 into level-1

Related Commands

None

6.8.53. router isis

Command Purpose

Use this command in Global Config mode to enable the Intermediate System-to-Intermediate System (IS-IS) routing protocol and to specify an IS-IS process. To disable IS-IS routing, use the noform of this command.

Use the no parameter with this command to disable IS-IS routing.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

router isis ( INSTANCE | )

no router isis ( INSTANCE | )

Parameter	Parameter Description	Parameter Value
INSTANCE	Specify an ISO routing instance tag.	Up to 20 characters

Command Mode

Global Config

Default

None

Usage

None

Examples

The following example shows how to set ISIS instance name and create it:

Switch# configure terminal
Switch(config)# router isis 1

Related Commands

None

6.8.54. set-overload-bit

Command Purpose

To configure the router to signal other routers not to use it as an intermediate hop in their shortest path first

(SPF) calculations, use the set-overload-bit command in router configuration mode. To remove the designation,

use the noform of this command.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

set-overload-bit ( { suppress ( external | interlevel | external interlevel | interlevel external ) | on-startup ( TIME | wait-for-bgp ) } | )

no set-overload-bit

Parameter	Parameter Description	Parameter Value
suppress	Specify to suppress specific types of IP prefixes.	-
external	Specify to redistribute external reachability (to prevent the IP prefixes learned from other protocols from being advertised).	-
interlevel	Specify to redistribute interlevel reachability.	-
on-startup	Specify an interval in seconds after which the overload state is exited.	-
TIME	Specify the time in seconds to advertise one self as overloaded after reboot.	5-86400
wait-for-bgp	Specify that BGP determines when to unset the overload bit.	-

Command Mode

Router Configuration

Default

By default, no overload-bit is set.

Usage

None

Examples

The following example shows how to set overload bit:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# set-overload-bit

Related Commands

None

6.8.55. spf-interval-exp

Command Purpose

Use this command to set the minimum and maximum hold intervals between Shortest Path First (SPF) calculations.

The spf-interval-exp command configures the minimum and maximum interval time between the receipt of a topology change and the calculation of the SPF.

Use the no parameter with this command to set the minimum and maximum hold intervals to the default.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

spf-interval-exp EXP_MIN EXP_MAX

spf-interval-exp ( level-1 | level-2 ) <0-2147483647> <0-2147483647>

no spf-interval-exp

Parameter	Parameter Description	Parameter Value
EXP_MIN	Specify the minimum delay between receiving a change to the SPF calculation in milliseconds.	0-2147483647
EXP_MAX	Specify the maximum delay between receiving a change to the SPF calculation in milliseconds.	0-2147483647
level-1	Specify an interval for Level-1 IS.	-
level-2	Specify an interval for Level-2 IS.	-

Command Mode

Router Configuration

Default

By default, uses 500 milliseconds and 50,000 milliseconds for the minimum and maximum hold intervals, respectively. The values are applied to both level-1 and level-2 if the level parameter is omitted.

Usage

None

Examples

The following example shows how to set the minimum and maximum hold intervals between Shortest Path First (SPF) calculations:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# spf-interval-exp level-1 600 60000
Switch(config-router)# no spf-interval-exp level-1

Related Commands

None

6.8.56. summary-address

Command Purpose

Use this command to configure Summary Address to summarize IPv4 reachability information.

Use the no parameter with this command to unconfigure the summary.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

summary-address IP_ADDR/IP_MASK_LEN ( level-1 | level-1-2 | level-2 | ) ( metric ) ( METRIC | )

no summary-address IP_ADDR/IP_MASK_LEN

Parameter	Parameter Description	Parameter Value
IP_ADDR/IP_MASK_LEN	Specify the IPv4 prefix to be announced.	IPv4 Address and mask length in A.B.C.D/M format
level-1	Specify the reachability information only for Level-1.	-
level-1-2	Specify the reachability information for both Level-1 and Level-2.	-
level-2	Specify the reachability information only for Level-2.	-
metric	Specify the metric for the summarized address.	-
METRIC	Specify the metric. The default is 0.	1-4294967295

Command Mode

Router Configuration

Default

By default, does not configure the summary-address. Summary-address is applied to Level-2 IS if level parameter is omitted.

Usage

If neither the level-1 nor the level-2 keysword is configured, it applies to level-2

Examples

The following example shows how to configure ipv4 Summary Address:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# summary-address 10.10.0.0/16

Related Commands

None

6.8.57. summary-prefix

Command Purpose

Use this command to configure the summary prefix to summarize IPv6 reachability information.

Use the no parameter to unconfigure the summary.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

summary-prefix GLOBAL_PREFIX/IPV6_MASK_LEN ( level-1 | level-1-2 | level-2 | ) ( metric METRIC )

no summary-prefix GLOBAL_PREFIX/IPV6_MASK_LEN

Parameter	Parameter Description	Parameter Value
- GLOBAL _PREFIX/IPV6_MASK_LEN	Specify the IPv6 prefix to be announced.	IPv4 Address and mask length in X:X::X:X/M format
level-1	Specify the reachability information only for Level-1.	-
level-1-2	Specify the reachability information for both Level-1 and Level-2.	-
level-2	Specify the reachability information only for Level-2.	-
metric	Specify the metric for the summarized address.	-
METRIC	Specify the metric. The default is 0.	1-4294967295

Command Mode

Address Family Configuration

Default

By default, does not configure the summary-prefix. Summary-prefix is applied to Level-2 IS if level parameter is omitted.

Usage

If neither the level-1 nor the level-2 keysword is configured, it applies to level-2

Examples

The following example shows how to configure ipv6 Summary Prefix:

Switch# configure terminal
Switch(config)# router isis 1
Switch(config-router)# address-family ipv6
Switch(config-router)# summary-prefix 3ffe:1234::/32

Related Commands

None

6.8.58. show clns is-neighbors

Command Purpose

Use this command to display all IS neighbor adjacencies.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

show clns is-neighbors ( detail | )

show clns INSTANCE is-neighbors ( detail | )

show clns is-neighbors IFNAME ( detail | )

show clns INSTANCE is-neighbors IFNAME ( detail | )

Parameter	Parameter Description	Parameter Value
INSTANCE	Display information for specified instance.	Up to 20 characters
IFNAME	Display information about a single interface.	Supportphysical/aggregation/loopback/vlan/tunnelports
detail	Display detailed information for all interfaces.	-

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

The following example shows how to display all IS neighbor adjacencies:

Switch# show clns is-neighbors

Area 100:
System Id Interface State Type Priority Circuit Id
0000.0000.0002 vlan100 Up L2 64 0000.0000.0001.01
0000.0000.0002 vlan200 Up L2 64 0000.0000.0001.02

Related Commands

None

6.8.59. show debugging isis

Command Purpose

Use this command to display the status of the debugging of the ISIS system.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

show debugging isis

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

The following example shows how to display the status of the debugging of the ISIS system:

Switch# show debugging isis

IS-IS debugging status:
IS-IS spf debugging is on

Related Commands

None

6.8.60. show ip isis route

Command Purpose

Use this command to display IS-IS routing table for IPv4.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

show ip isis ( INSTANCE | ) route

Parameter	Parameter Description	Parameter Value
INSTANCE	Display information for specified instance.	Supportphysical/aggregation/loopback/vlan/tunnelports

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

The following example shows how to display IS-IS routing table for IPv4.:

Switch# show ip isis route

Related Commands

None

6.8.61. show ipv6 isis route

Command Purpose

Use this command to display the IS-IS routing table for IPv6.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

show ipv6 isis ( INSTANCE | ) route

Parameter	Parameter Description	Parameter Value
INSTANCE	Display information for specified instance.	Up to 20 characters

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

The following example shows how to display IS-IS routing table for IPv6.:

Switch# show ipv6 isis route

Related Commands

None

6.8.62. show ipv6 isis topology

Command Purpose

Use this command to display the IS-IS topology for IPv6.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

show ipv6 isis topology ( l1 | l2 | level-1 | level-2 | )

show ipv6 isis INSTANCE topology ( l1 | l2 | level-1 | level-2 | )

Parameter	Parameter Description	Parameter Value
INSTANCE	Display information for specified instance.	Up to 20 characters
l1	IS-IS level-1 SPF topology.	-
l2	IS-IS level-2 SPF topology.	-
level-1	IS-IS level-1 SPF topology.	-
level-2	IS-IS level-2 SPF topology.	-

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

The following example shows how to display the IS-IS topology for IPv6:

Switch# show ipv6 isis topology

Related Commands

None

6.8.63. show ipv6 protocols isis

Command Purpose

Use this command to display IPv6 process parameters and statistics.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

show ipv6 protocols isis

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

The following example shows how to display IPv6 process parameters and statistics.:

Switch# show ipv6 protocols isis

Routing Protocol is "isis 2 "
 Redistributing:
  Area Address(es): 
Distance : (default is 115)
Routing Protocol is "isis 1 "
 Redistributing:
  Area Address(es): 
Distance : (default is 115)

Related Commands

None

6.8.64. show isis counter

Command Purpose

Use this command to display the IS-IS system counter entry MIBs.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

show isis counter

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

The following example shows how to display the IS-IS system counter entry MIBs.:

Switch# show isis counter

Area b:
IS-IS Level-1 isisSystemCounterEntry:
isisSysStatCorrLSPs: 0
isisSysStatAuthTypeFails: 0
isisSysStatAuthFails: 0
isisSysStatLSPDbaseOloads: 0
isisSysStatManAddrDropFromAreas: 0
isisSysStatAttmptToExMaxSeqNums: 0
isisSysStatSeqNumSkips: 0
isisSysStatOwnLSPPurges: 0
isisSysStatIDFieldLenMismatches: 0
isisSysStatMaxAreaAddrMismatches: 0
isisSysStatPartChanges: 0
isisSysStatSPFRuns: 0
isisSysStatPRCRuns: 0
Area bb:
IS-IS Level-1 isisSystemCounterEntry:
isisSysStatCorrLSPs: 0
isisSysStatAuthTypeFails: 0
isisSysStatAuthFails: 0
isisSysStatLSPDbaseOloads: 0
isisSysStatManAddrDropFromAreas: 0
isisSysStatAttmptToExMaxSeqNums: 0
isisSysStatSeqNumSkips: 0
isisSysStatOwnLSPPurges: 0
isisSysStatIDFieldLenMismatches: 0
isisSysStatMaxAreaAddrMismatches: 0
isisSysStatPartChanges: 0
isisSysStatSPFRuns: 0
isisSysStatPRCRuns: 0
IS-IS Level-2 isisSystemCounterEntry:
isisSysStatCorrLSPs: 0
isisSysStatAuthTypeFails: 0
isisSysStatAuthFails: 0
isisSysStatLSPDbaseOloads: 0
isisSysStatManAddrDropFromAreas: 0
isisSysStatAttmptToExMaxSeqNums: 0
isisSysStatSeqNumSkips: 0
isisSysStatOwnLSPPurges: 0
isisSysStatIDFieldLenMismatches: 0
isisSysStatMaxAreaAddrMismatches: 0
isisSysStatPartChanges: 0
isisSysStatSPFRuns: 0
isisSysStatPRCRuns: 0

Related Commands

None

6.8.65. show isis database

Command Purpose

Use this command to display detailed link state database information.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

show isis database

show isis database ( l1 | l2 | level-1 | level-2 ) LSPID ( detail | verbose )

Parameter	Parameter Description	Parameter Value
detail	IS-IS link state database detailed information.	-
verbose	IS-IS link state database detailed information.	-
LSPID	LSPID in the form ofXXXX.XXXX.XXXX.XX-XX.	-
l1	IS-IS level-1 link state database.	-
l2	IS-IS level-2 link state database.	-
level-1	IS-IS level-1 link state database.	-
level-2	IS-IS level-2 link state database.	-

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

The following example shows how to display detailed link state database information.:

Switch# show isis database verbose

Area (null):
IS-IS Level-1 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
0000.0000.0001.00-00* 0x00000002 0x9E50 1140 0/0/0
IS-IS Level-2 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
0000.0000.0001.00-00* 0x00000003 0x9C51 1176 0/0/0

Related Commands

None

6.8.66. show isis interface

Command Purpose

Use this command to display detailed interface information.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

show isis interface

show isis interface IFNAME

show isis interface counter

Parameter	Parameter Description	Parameter Value
IFNAME	Display the name of interface.	Supportphysical/aggregation/loopback/vlan/tunnelports
counter	Display the interface counters.	-

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

The following example shows how to display detailed interface information about ISIS:

Switch# show isis interface eth-0-1
eth-0-1 is up, line protocol is up
Routing Protocol: IS-IS ((null))
Network Type: Broadcast
Circuit Type: level-1-2
Local circuit ID: 0x01
Extended Local circuit ID: 0x00000001
Local SNPA: e6f5.41de.3200
IP interface address:
1.1.1.1/24
IPv6 interface address:
Level-1 Metric: 10/10, Priority: 64, Circuit ID: 0000.0000.0001.01
Number of active level-1 adjacencies: 0
Level-1 LSP MTU: 1492
Level-2 Metric: 10/10, Priority: 64, Circuit ID: 0000.0000.0001.01
Number of active level-2 adjacencies: 0
Level-2 LSP MTU: 1492
Next IS-IS LAN Level-1 Hello in 238 milliseconds
Next IS-IS LAN Level-2 Hello in 238 milliseconds

Related Commands

None

6.8.67. show isis topology

Command Purpose

Use this command to display data about IS-IS topology.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

show isis topology ( l1 | l2 | level-1 | level-2 | )

show isis INSTANCE topology ( l1 | l2 | level-1 | level-2 | )

Parameter	Parameter Description	Parameter Value
INSTANCE	Display information for specified instance.	Up to 20 characters
l1	Display the path to all level-1 routers in the area.	-
l2	Display the path to all level-2 routers in the domain.	-
level-1	Display the path to all level-1 routers in the area.	-
level-2	Display the path to all level-2 routers in the domain.	-

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

The following example shows how to display data about IS-IS topology.:

Switch# show isis topology

Related Commands

None

6.8.68. show running-config interface isis

Command Purpose

Use this command to display the ISIS interface configurations.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

show running-config interface IFNAME isis

Parameter	Parameter Description	Parameter Value
IFNAME	Display the name of interface.	Supportphysical/aggregation/loopback/vlan/tunnelports

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

The following example shows how to display the ISIS interface configurations.:

Switch# show running-config interface eth-0-1 isis

Building configuration... !
interface eth-0-1
ip router isis !

Related Commands

None

6.8.69. show running-config router isis

Command Purpose

Use this command to display router ISIS configurations.

Prerequisites

Platform	Software	License
AQ-N3000	7.0	Base
AQ-N5000	7.0	Base
AQ-N6000	7.0	Base

Command Syntax

show running-config router isis

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

The following example shows how to display router ISIS configurations.:

Switch# show running-config router isis

Building configuration... !
router isis
net 10.0000.0000.0001.00 !

Related Commands

None

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