Irf Member Id; Mpu Roles; Irf Port - HP 12500 SERIES Configuration Manual
Routing switch
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Also See for 12500 SERIES:
- Configuration manual (402 pages) ,
- Network management and monitoring command reference (320 pages) ,
- Command reference manual (157 pages)
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automatically elect a new master from among them to take over. For more information about
master election, see
While backing up the master, all standby devices process and forward traffic independently.
IRF member ID
An IRF fabric uses member IDs to uniquely identify and manage its members. If two devices have
the same IRF member ID, they cannot form an IRF fabric. If the IRF member ID of a device has been
used in an IRF fabric, the device cannot join the fabric.
Member ID information is included as the first part of interface numbers and file paths to uniquely
identify interfaces and files in an IRF fabric. For example, after you assign a device with member ID
2 to an IRF fabric, the name of interface GigabitEthernet 3/0/1 changes to GigabitEthernet 2/3/0/1,
and the file path slot1#flash:/test.cfg changes to chassis2#slot1#flash:/test.cfg.
By default, the standby MPU of a device is automatically assigned the same ID as the active MPU.
You can change the standby MPU ID of one member device to quickly recover IRF configuration for
another member device that has only one MPU, as described in
for a one-MPU
MPU roles
Each IRF member device has one or two MPUs, which play different roles, as follows:
Role
Master MPU
Active MPU
Standby MPU
IRF port
An IRF port is a logical interface for the connection between IRF member devices. Every IRF-capable
device supports two IRF ports. They forward IRF protocol packets and data packets that must travel
across IRF member devices.
In standalone mode, the IRF ports are named IRF-port 1 and IRF-port 2.
"Master
election."
member."
Description
Active MPU of the master device. It is also called the "global active MPU" in
Comware 5 documentation. You configure and manage the entire IRF fabric
at the CLI of the master MPU.
Active MPU on each member device. An active MPU has the following
responsibilities:
•
Manages the local device, including synchronizing configuration with the
local standby MPU, processing protocol packets, and creating and
maintaining route entries.
•
Handles IRF related events, such as master election and topology
collection.
For the master MPU, all other MPUs, including active MPUs on standby
devices, are standby MPUs.
If a member device has two MPUs, the one backing up the local active MPU
is the local standby MPU from the perspective of the member device. A local
standby MPU does not process traffic.
5
"Fast-restoring IRF configuration
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