3.15. Hash load-banlance Commands

Command Purpose

Use this command to set hash field or create a new hash field, and enter hash field configure view;use the no command to delete user-defined hash field.

Prerequisites

Command Syntax

hash-field ( port-channel | ecmp | NAME )

no hash-field NAME

Command Mode

Global Config

Default

port-channel, ecmp

Usage

AQ-N3000, AQ-N5000

The system support the max number of hash field is 4, including 2 system default hash fields named port-channel and ecmp and 2 user-defined hash fields.when applied to the hash value,it can’t be deleted.

AQ-N6000

The system support the max number of hash field is 8, including 2 system default hash fields named port-channel and ecmp and 6 user-defined hash fields.when applied to the hash value,it can’t be deleted.

Examples

The following example shows how to create a new hash field named user:

Switch# configure terminal
Switch(config)# hash-field user
Switch(config-hash-field)#

The following example shows how to delete the user-defined hash field named user:

Switch# configure terminal
Switch(config)# no hash-field user

Related Commands

show hash-field

Command Purpose

Use this command to set l2 packet hash field; use the no command to set the l2 packet field to default.

Prerequisites

Command Syntax

l2 ( macda | macsa | vlan | eth-type | src-interface )

no l2

Command Mode

Config-hash-field

Default

l2 macsa macda

Usage

None

Examples

The following example shows how to select macsa for l2 packet load balance in port-channel:

Switch# configure terminal
Switch(config)# hash-field port-channel
Switch(config-hash-field)# l2 macsa

The following example shows how to select default l2 packet load balance in port-channel:

Switch# configure terminal
Switch(config)# hash-field port-channel
Switch(config-hash-field)# no l2

Related Commands

show hash-field

Command Purpose

Use this command to set ip packet hash field; use the no command to set the ip packet field to default.

Prerequisites

Command Syntax

ip ( ipda | ipsa | ip-protocol | sourceport | destport | src-interface )

no ip

Command Mode

Config-hash-field

Default

ip ipsa ipda sourceport destport ip-protocol

Usage

None

Examples

The following example shows how to select ipsa for ip packet load balance in port-channel:

Switch# configure terminal
Switch(config)# hash-field port-channel
Switch(config-hash-field)# ip ipsa

The following example shows how to select default ip packet load balance in port-channel:

Switch# configure terminal
Switch(config)# hash-field port-channel
Switch(config-hash-field)# no ip

Related Commands

show hash-field

Command Purpose

Use this command to set ipv6 packet hash field; use the no command to set the ipv6 field to default.

Prerequisites

Command Syntax

ipv6 ( ipda | ipsa | ip-protocol | sourceport | destport | src-interface )

no ipv6

Command Mode

Config-hash-field

Default

ipv6 ipsa ipda sourceport destport ip-protocol

Usage

Only when the system is in ipv6 mode, the ipv6 packet hash field can work normally.

Examples

The following example shows how to select ipsa for ipv6 packet load balance in port-channel:

Switch# configure terminal
Switch(config)# hash-field port-channel
Switch(config-hash-field)# ipv6 ipsa

The following example shows how to select default ipv6 packet load balance in port-channel:

Switch# configure terminal
Switch(config)# hash-field port-channel
Switch(config-hash-field)# no ipv6

Related Commands

show hash-field

Command Purpose

Use this command to set vxlan packet hash field.

To return the configuration to default value use the no form of this command.

Prerequisites

Command Syntax

vxlan { vni | src-interface }

vxlan ( { vni | src-interface } | ) outer { ipsa | ipda | sourceport | destport | vlan }

vxlan ( { vni | src-interface } | ) inner-layer2 { macsa | macda | eth-type }

vxlan ( { vni | src-interface } | ) inner-layer3 { ipsa | ipda | sourceport | destport | ip-protocol }

no vxlan

Command Mode

Config-hash-field

Default

vxlan vni outer ipsa ipda sourceport

Usage

Outer configuration and inner configuration cannot take effect at the same time.

Examples

The following example shows how to select outer ipsa and vni for vxlan packet load balance in port-channel:

Switch# configure terminal
Switch(config)# hash-field port-channel
Switch(config-hash-field)# vxlan vni outer ipda

The following example shows how to select default vxlan packet load balance in port-channel:

Switch# configure terminal
Switch(config)# hash-field port-channel
Switch(config-hash-field)# no vxlan

Related Commands

show hash-field

Command Purpose

Use this command to set nvgre packet hash field.

To return the configuration to default value use the no form of this command.

Prerequisites

Command Syntax

nvgre { vsid | src-interface }

nvgre ( { vsid | src-interface } | ) outer { ipsa | ipda }

nvgre ( { vsid | src-interface } | ) inner-layer2 { macsa | macda | eth-type }

nvgre ( { vsid | src-interface } | ) inner-layer3 { ipsa | ipda | sourceport | destport | ip-protocol }

no nvgre

Command Mode

Config-hash-field

Default

nvgre vsid outer ipsa ipda

Usage

Outer configuration and inner configuration cannot take effect at the same time.

Examples

The following example shows how to select outer ipsa and vsid for nvgre packet load balance in port-channel:

Switch# configure terminal
Switch(config)# hash-field port-channel
Switch(config-hash-field)# nvgre vsid outer ipda

The following example shows how to select default nvgre packet load balance in port-channel:

Switch# configure terminal
Switch(config)# hash-field port-channel
Switch(config-hash-field)# no nvgre

The following example shows how to select inner ipsa and top-label for mpls packet load balance in port-channel:

Switch# configure terminal
Switch(config)# hash-field port-channel
Switch(config-hash-field)# mpls top-label inner ipsa

Related Commands

show hash-field

Command Purpose

Use this command to display the configurations of a hash value or all hash value.

Prerequisites

Command Syntax

show hash-value ( NAME | )

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

The following example shows how to display the relationship between hash value paorfile and interface:

Switch# show hash-value interface-applied

eth-0-1
hash-value aaa input

Related Commands

None

Command Purpose

Use this command to display the relationship between hash value and interface.

Prerequisites

Command Syntax

show hash-value interface-applied

Command Mode

Interface Configuration

Default

None

Usage

Physical port only can select input direction linkagg port can select input direction and output direction. Agg member port can’t configure the command.

Examples

The following example shows how to apply a hash value to eth-0-1:

Switch# configure terminal
Switch(config)# interface eth-0-1
Switch(config-if)# load-balance hash-value aaa input

Related Commands

show hash-value interface-applied

Command Purpose

Use this command to enter hash value global configure view.

Prerequisites

Command Syntax

hash-value global

Command Mode

Config-hash-value-global

Default

port-channel

Usage

Compared with hash value configuration, this command has lower priority

Examples

The following example shows how to select hash field for linkagg in hash value global :

Switch# configure terminal
Switch(config)# hash-value global
Switch(config-hash-value-global)# port-channel select user

Related Commands

show hash-value global

Command Purpose

Use this command to display the configurations of hash value global.

Prerequisites

Command Syntax

show hash-value global

Command Mode

Privileged EXEC

Default

None

Usage

None

Examples

The following example shows how to display the configurations of hash value global:

Switch# show hash-value global 

LBT:load balance type         LBM :load balance mode
PT :packet type               HF  :hash field
HA :hash arithmetic
hash-value global
 LBT            LBM            PT             HF             HA
----------------------------------------------------------------------
 port-channel   -              all            port-channel   xor
 ecmp           -              all            ecmp           xor
 ecmp           flow id        all            ecmp           xor
 entropy        -              all            ecmp           xor
----------------------------------------------------------------------
 Efd hash field select:
  macsa                 macda               
  ipsa                  ipda                
  sourceport            destport            
  ip-protocol         

Related Commands

None

Command Purpose

Use this command to disable ecmp round robin load balance as a acl action.

To remove the configuration,use the no form of this command.

Prerequisites

Command Syntax

ecmp load-balance round-robin disable

no ecmp load-balance round-robin disable

Command Mode

Config-pmap-c

Default

None

Usage

None

Examples

The following example shows how to disable ecmp round-robin as a acl action:

Switch# configure terminal
Switch(config)# policy-map map1
Switch(config-pmap)# class class-default
Switch(config-pmap-c)# ecmp load-balance round-robin disable

The following example shows how to enable ecmp round-robin as a acl action:

Switch# configure terminal
Switch(config)# policy-map map1
Switch(config-pmap)# class class-default
Switch(config-pmap-c)# no ecmp load-balance round-robin disable

Related Commands

None

Command Purpose

Use this command to disable linkagg round robin load balance as a acl action.

To remove the configuration,use the no form of this command.

Prerequisites

Command Syntax

port-channel load-balance round-robin disable

no port-channel load-balance round-robin disable

Command Mode

Config-pmap-c

Default

None

Usage

None

Examples

The following example shows how to disable linkagg round-robin as a acl action:

Switch# configure terminal
Switch(config)# policy-map map1
Switch(config-pmap)# class class-default
Switch(config-pmap-c)# port-channel load-balance round-robin disable

The following example shows how to enable linkagg round-robin as a acl action:

Switch# configure terminal
Switch(config)# policy-map map1
Switch(config-pmap)# class class-default
Switch(config-pmap-c)# no port-channel load-balance round-robin disable

Related Commands

None