lacp port-id-extension enable

Function

The lacp port-id-extension enable command increases the number of each member interface in an Eth-Trunk interface by 32768 when the Eth-Trunk interface works in static LACP mode and is associated with a VRRP group.

The undo lacp port-id-extension enable command restores the number of each member interface in an Eth-Trunk interface when the Eth-Trunk interface works in static LACP mode and is associated with a VRRP group.

By default, the system automatically allocates a number to each member interface in an Eth-Trunk interface.

Format

lacp port-id-extension enable

undo lacp port-id-extension enable

Parameters

None

Views

Eth-Trunk interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
trunk	write

Usage Guidelines

Usage Scenario

A non-Huawei CE is dual-homed to Huawei UPE1 and UPE2. Eth-Trunk links in static LACP mode are configured between the CE and the UPEs. UPE1 and UPE2 are configured as a VRRP group, with UPE1 being Master and UPE2 being Backup. After an Eth-Trunk interface in static LACP mode is associated with a VRRP group, the Eth-Trunk link can rapidly detect the status change of the VRRP group. When detecting a status change of the VRRP group, the Eth-Trunk interface can rapidly switch traffic to an available link. This ensures reliable service transmission.

To allow the function of associating an Eth-Trunk interface in static LACP mode with a VRRP group to take effect, the numbers of member interfaces in two Eth-Trunk interfaces associated with a VRRP group cannot repeat. To meet this requirement, run the lacp port-id-extension enable command on a UPE to increase the number of each member interface in an Eth-Trunk interface by 32768.

Prerequisites

The Eth-Trunk interface in static LACP mode has been associated with a VRRP group using the lacp track vrrp vrid vrid interface interface-type interface-number command.

Follow-up Procedure

When a non-Huawei device is dual-homed to two Huawei UPEs:

Run the lacp vrrp priority priority command on the Eth-Trunk interfaces of the UPEs to set the same LACP system priority.
Run the lacp system-id mac-address command on the Eth-Trunk interfaces of the UPEs to set the same LACP system ID.

Example

# Increase the number of each member interface in an Eth-Trunk interface in static LACP mode by 32768.

<HUAWEI> system-view
[~HUAWEI] interface GigabitEthernet0/1/1
[~HUAWEI-GigabitEthernet0/1/1] admin-vrrp vrid 1
[*HUAWEI-GigabitEthernet0/1/1] quit
[*HUAWEI] interface eth-trunk 1
[*HUAWEI-Eth-Trunk1] mode lacp-static
[*HUAWEI-Eth-Trunk1] lacp track vrrp vrid 1 interface GigabitEthernet0/1/1
[*HUAWEI-Eth-Trunk1] lacp port-id-extension enable