13.8. ERPS Commands

Command Purpose

Use this command to create ERPS domain instance.

Use the no form of this command to remove the ERPS domain instance.

Prerequisites

Command Syntax

erps DOMAINID (ERPS_NAME| )

no erps DOMAINID

Command Mode

Global Config

Default

None

Usage

This command is used to create or delete an ERPS domain. The command should the use first when config ERPS.

ERPS_NAME is optional. If no name is provided by command, system will generate the domain name automatically. The name format follows “ERPS001”, where 001 can be instead of any domain ID between 1-255 provided through the command.

Examples

This example shows how to create an ERPS domain with ID 11 and name test11:

Switch# configure terminal
Switch(config)# erps 11 test11

Related Commands

show erps list

Command Purpose

Use this command to specify ERPS domain’s control VLAN.

Use the no form of this command to remove the control VLAN.

Prerequisites

Command Syntax

erps DOMAINID (primary|sub) control vlan VLANID

no erps DOMAINID (primary|sub) control vlan

Command Mode

Global Config

Default

None

Usage

The ERPS protocol packet is transferred in the control VLAN.

It is best to add the control VLAN into the instance which is bound by the domain.

Examples

This example shows how to set VLAN 15 as primary control VLAN for ERPS domain 11:

Switch# configure terminal
Switch(config)# vlan database
Switch(config-vlan)# vlan 15
Switch(config-vlan)# exit
Switch(config)# erps 11 primary control vlan 15

Related Commands

show erps

Command Purpose

Use this command to set hello timer interval for specific ERPS domain instance.

Use the no form of this command to restore the default value.

Prerequisites

Command Syntax

erps DOMAINID hellotime HELLOTIME

no erps DOMAINID hellotime

Command Mode

Global Config

Default

The default hellotime is 10 second, unit is 100ms.

Usage

The timer should be the same of all nodes in the ring.

Examples

This example shows how to set hello timer interval of ERPS domain 11 to 20s:

Switch# configure terminal
Switch(config)# erps 11 hellotime 20

Related Commands

show erps

Command Purpose

Use this command to set the fail timer interval for specific ERPS domain instance.

Use the no form of this command to restore the default value.

Prerequisites

Command Syntax

erps DOMAINID failtime FAILTIME

no erps DOMAINID failtime

Command Mode

Global Config

Default

The default failtime is 30 (3 seconde), unit is 100ms.

Usage

The timer should be the same of all nodes in the ring.

Examples

This example shows how to set fail timer interval of ERPS domain 11 to 60s:

Switch# configure terminal
Switch(config)# erps 11 failtime 60

Related Commands

show erps

Command Purpose

Use this command to set the MSTP instance protected by ERPS.

Use the no form of this command to remove the protected MSTP instance.

Prerequisites

Command Syntax

erps DOMAINID mstp instance INSTANCE_ID

no erps DOMAINID mstp instance

Command Mode

Global Config

Default

None

Usage

No default instance is specified.

Examples

This example shows how to set instance 1 as ERPS11’s protected instance:

Switch# configure terminal
Switch(config)# erps 11 mstp instance 1

Related Commands

show erps

Command Purpose

Use this command to create an ERPS ring for specific ERPS domain.

Use the no form of this command to remove the ERPS ring.

Prerequisites

Command Syntax

erps DOMAINID ring RINGID level (primary|sub)

no erps DOMAINID ring RINGID

Command Mode

Global Config

Default

None

Usage

The rings in the ERPS domain are divided into primary and subrings that are differentiated by the configuration.

Examples

This example shows how to create a sub ring with ID 1 for ERPS domain 11:

Switch# configure terminal
Switch(config)# erps 11 ring 1 level sub

Related Commands

show erps

Command Purpose

Use this command to set specific ERPS ring instance node mode.

Use the no form of this command to restore the default mode.

Prerequisites

Command Syntax

erps DOMAINID ring RINGID mode (master|transit)

no erps DOMAINID ring RINGID mode

Command Mode

Global Config

Default

The mode is not set by default.

Usage

The master node is used to send and receive ERPS protocol packet.

The transit node is used to transfer ERPS protocol packet to neighbor switch.

Examples

This example shows how to set node as ERPS domain 11 ring 1 transit node:

Switch# configure terminal
Switch(config)# erps 11 ring 1 mode transit

Related Commands

show erps

Command Purpose

Use this command to set primary interface for specific ERPS ring instance.

Use the no form of this command to unset the primary interface.

Prerequisites

Command Syntax

erps DOMAINID ring RINGID primary interface (IFPHYSICAL|IFAGG)

no erps DOMAINID ring RINGID primary interface

Command Mode

Global Config

Default

None

Usage

For master node, the interface with type primary is used to send ERPS protocol packet.

Only the interface in trunk/dot1q-tunnel mode can be set as primary interface.

Examples

This example shows how to set interface eth-0-9 as primary interface for ERPS domain 11 ring 1:

Switch# configure terminal
Switch(config)# interface eth-0-9
Switch(config-if)# switchport mode trunk
Switch(config-if)# switchport trunk allowed vlan add 15
Switch(config-if)# exit
Switch(config)# erps 11 ring 1 primary interface eth-0-9

Related Commands

show erps

Command Purpose

Use this command to set secondary interface for specific ERPS ring instance.

Use the no form of this command to unset the secondary interface.

Prerequisites

Command Syntax

erps DOMAINID ring RINGID secondary interface (IFPHYSICAL|IFAGG)

no erps DOMAINID ring RINGID secondary interface

Command Mode

Global Config

Default

None

Usage

Only the interface in trunk/dot1q-tunnel mode can be set as secondary interface.

Examples

This example shows how to set interface eth-0-9 as primary interface for ERPS domain 11 ring 1:

Switch# configure terminal
Switch(config)# interface eth-0-9
Switch(config-if)# switchport mode trunk
Switch(config-if)# switchport trunk allowed vlan add 15
Switch(config-if)# exit
Switch(config)# erps 11 ring 1 secondary interface eth-0-9

Related Commands

show erps

Command Purpose

Use this command to set interface for specific ERPS ring instance.

Use no form of this command to unset interface for specific ERPS ring instance.

Prerequisites

Command Syntax

erps DOMAINID ring DOMAINID interface (IFPHYSICAL|IFAGG)

no erps DOMAINID ring DOMAINID interface

Command Mode

Global Config

Default

None

Usage

None

Examples

This example shows how to set interface eth-0-9 as interface for ERPS domain 11 ring 1:

Switch# configure terminal
Switch(config)# interface eth-0-9
Switch(config-if)# switchport mode trunk
Switch(config-if)# switchport trunk allowed vlan add 15
Switch(config-if)# exit
Switch(config)# erps 11 ring 1 interface eth-0-9

Related Commands

show erps

Command Purpose

Use this command to set specific ERPS ring instance edge node mode.

Use the no form of this command to unset specific ERPS ring instance edge node mode.

Prerequisites

Command Syntax

erps DOMAINID ring DOMAINID edge-mode (edge|assistant-edge)

no erps DOMAINID ring DOMAINID mode

Command Mode

Global Config

Default

None

Usage

Both the edge node and the assistant-edge node are special transit nodes.

Once a node is set to edge/assistant-edge node, it will be set to transit node automatically.

Examples

This example shows how to set node as ERPS domain 11 ring 1 edge node:

Switch# configure terminal
Switch(config)# erps 11 ring 1 edge-mode edge

Related Commands

show erps

Command Purpose

Use this command to set edge interface for specific ERPS ring instance.

Use the no form of this command to unset the edge interface.

Prerequisites

Command Syntax

erps DOMAINID ring DOMAINID edge interface (IFPHYSICAL|IFAGG)

no erps DOMAINID ring DOMAINID edge interface

Command Mode

Global Config

Default

None

Usage

Of the two ports via which the edge node (assistant-edge node) accesses the subring, one is a common port and the other is an edge port. The common port is the port for the edge node (assistant-edge node) to access the primary ring and the subring, while the edge port is the port for the edge node to access the subring only.

This command is only available for edge/assistant-edge node.

Examples

This example shows how to set interface eth-0-9 as edge interface for ERPS domain 11 ring 1:

Switch# configure terminal
Switch(config)# interface eth-0-9
Switch(config-if)# switchport mode trunk
Switch(config-if)# switchport trunk allowed vlan add 15
Switch(config-if)# exit
Switch(config)# erps 11 ring 1 edge interface eth-0-9

Related Commands

show erps

Command Purpose

Use this command to set common interface for specific ERPS ring instance.

Use the no form of this command to set edge interface for specific ERPS ring instance.

Prerequisites

Command Syntax

erps DOMAINID ring RINGID common interface (IFPHYSICAL|IFAGG)

no erps DOMAINID ring RINGID common interface

Command Mode

Global Config

Default

None

Usage

Of the two ports via which the edge node (assistant-edge node) accesses the subring, one is a common port and the other is an edge port. The common port is the port for the edge node (assistant-edge node) to access the primary ring and the subring, while the edge port is the port for the edge node to access the subring only.

This command is only available for edge/assistant-edge node.

Examples

This example shows how to set interface eth-0-9 as edge interface for ERPS domain 11 ring 1:

Switch# configure terminal
Switch(config)# interface eth-0-9
Switch(config-if)# switchport mode trunk
Switch(config-if)# switchport trunk allowed vlan add 15
Switch(config-if)# exit
Switch(config)# erps 11 ring 1 common interface eth-0-9

Related Commands

show erps

Command Purpose

Use this command to enable/disable SRPT functionality for specific ERPS ring instance.

Prerequisites

Command Syntax

erps DOMAINID ring RINGID srpt (enable|disable)

Command Mode

Global Config

Default

None

Usage

None

Examples

This example shows how to enable SRPT functionality for ERPS domain 11 ring 1:

Switch# configure terminal
Switch(config)# erps 11 ring 1 srpt enable

Related Commands

show erps

Command Purpose

Use this command to enable specific ERPS ring instance.

Prerequisites

Command Syntax

erps DOMAINID ring RINGID enable

Command Mode

Global Config

Default

None

Usage

Upon the specific ERPS ring is enabled successfully, the ring state should leave the idle state.

Examples

This example shows how to enable ERPS domain 11 ring 1:

Switch# configure terminal
Switch(config)# erps 11 ring 1 enable

Related Commands

show erps

Command Purpose

Use this command to disable specific ERPS ring instance.

Prerequisites

Command Syntax

erps DOMAINID ring RINGID disable

Command Mode

Global Config

Default

None

Usage

Upon the specific ERPS ring is enabled successfully, the ring state should leave the idle state.

Examples

This example shows how to disable ERPS domain 11 ring 1:

Switch# configure terminal
Switch(config)# erps 11 ring 1 disable

Related Commands

show erps

Command Purpose

Use this command to enable specific ERPS domain instance.

Prerequisites

Command Syntax

erps DOMAINID enable

Command Mode

Global Config

Default

None

Usage

Use this command to enable all the ring of the ERPS domain.

Enable the domain will make all the rings within the domain be enabled.

Upon the specific ERPS ring is enabled successfully, the ring state should leave the idle state

Examples

This example shows how to enable ERPS domain 11:

Switch# configure terminal
Switch(config)# erps 11 enable

Related Commands

show erps

Command Purpose

Use this command to disable specific ERPS domain instance.

Prerequisites

Command Syntax

erps DOMAINID disable

Command Mode

Global Config

Default

None

Usage

Use this command to disable all the ring of the ERPS domain.

Enable the domain will make all the rings within the domain be enabled.

Upon the specific ERPS ring is enabled successfully, the ring state should leave the idle state.

Examples

This example shows how to disable ERPS domain 11:

Switch# configure terminal
Switch(config)# erps 11 disable

Related Commands

show erps

Command Purpose

Use this command to compatible with RRPP.

Prerequisites

Command Syntax

erps mode rrpp

no erps mode rrpp

Command Mode

Global Config

Default

None

Usage

This command to compatible with RRPP.

Examples

This example shows how to compatible with RRPP:

Switch# configure terminal
Switch(config)# erps mode rrpp

Related Commands

None

Command Purpose

Use this command to show the configuration for specific ERPS domain.

Prerequisites

Command Syntax

show erps DOMAINID

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

This example shows how to display the configuration for ERPS domain 1:

Switch# show erps 1
ERPS domain ID: 1
ERPS domain name: ERPS001
ERPS domain mode: normal
ERPS domain primary control VLAN ID: 0
ERPS domain sub control VLAN ID: 0
ERPS domain hello timer interval: 1 second(s)
ERPS domain fail timer interval: 3 second(s)

Related Commands

None

Command Purpose

Use this command to show the list of ERPS domain(s).

Prerequisites

Command Syntax

show erps list

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

This example shows how to display the ERPS domain list:

Switch# show erps list
ERPS Domain List
ID Name
==============================
11 ERPS0011

Related Commands

None

Command Purpose

Use this command to clear the statistics for all domains or for single domain or for single ring.

Prerequisites