R3303-HP HSR6800 Routers IRF Configuration Guide

Accessing a standby MPU in the IRF fabric

You can log in to the CLI of a standby MPU for maintenance or debugging. When you change from the

global active MPU's CLI to the standby MPU's CLI, you are placed in user view and the command prompt

changes to <Sysname-Slave#member-ID/slot-number>, for example, <Sysname-Slave#1/0>. You can

execute the following commands at a standby MPU's CLI:

• display

• quit

• return

• system-view

• debugging

• terminal debugging

• terminal logging

• terminal monitor

• terminal trapping

Perform the following task in user view:

Task Command

Remarks

fabric.

irf switch-to chassis chassis-number

slot slot-number

By default, you are placed at the

global active MPU's CLI.

To return to the CLI of the global active MPU, use the quit command.

Configuring IRF member devices in IRF mode

After you access the global active MPU's CLI, you can perform the tasks in this section or configure

features in other configuration guides for the IRF fabric.

Assigning an IRF domain ID to the IRF fabric

This task is required for running LACP MAD between two IRF fabrics. For BFD MAD, this task is optional.

One IRF fabric forms one IRF domain. IRF domain IDs prevent IRF fabrics from interfering with one

another.

In Figure 11, De

vice A and Device B form IRF fabric 1, and Router A and Router B form IRF fabric 2. These

fabrics have LACP MAD links between them. When a member device in one IRF fabric receives an LACP

MAD packet, it looks at the domain ID in the packet to see whether the packet is from the local IRF fabric

or from a different IRF fabric. Then, the device can handle the packet correctly.