Configuring Irf Bridge Mac Persistence - HP 10500 Series Configuration Manual

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Step
3.
Configure the
port-specific load
sharing mode.

Configuring IRF bridge MAC persistence

By default, an IRF fabric uses the bridge MAC address of the master device as its bridge MAC address.
Layer 2 protocols, such as LACP, use this bridge MAC address to identify the IRF fabric. On a switched
LAN, the bridge MAC address must be unique.
To avoid duplicate bridge MAC addresses, an IRF fabric can change its bridge MAC address
automatically after its master leaves, but the change can cause transient traffic disruption.
Depending on your network condition, enable the IRF fabric to preserve or change its bridge MAC
address after the master leaves. Available options include:
irf mac-address persistent timer—Bridge MAC address of the IRF fabric is retained for 6 minutes
after the master leaves. If the master does not return before the timer expires, the IRF fabric uses the
bridge MAC address of the new master as its bridge MAC address. This option avoids unnecessary
bridge MAC address changes caused by device reboot, transient link failure, or purposeful link
disconnection.
irf mac-address persistent always—Bridge MAC address of the IRF fabric does not change after
the master leaves.
undo irf mac-address persistent—Bridge MAC address of the new master replaces the original one
as soon as the old master leaves.
IMPORTANT:
Configure the irf mac-address persistent always command in the following situations:
TRILL is configured. Retain the IRF bridge MAC address for TRILL to maintain a correct network topology.
VRRP load balancing is used. For more information about VRRP, see
Guide
.
If two IRF fabrics have the same bridge MAC address, they cannot merge.
To configure the IRF bridge MAC persistence setting:
Step
1.
Enter system view.
Command
irf-port load-sharing mode { destination-ip
| destination-mac | ingress-port |
source-ip | source-mac } *
Command
system-view
24
Remarks
The following are the default
load sharing mode:
Non-IP traffic—Source and
destination MAC addresses.
Non-TCP/-UDP IP
traffic—Source and
destination IP addresses.
TCP/UDP IP traffic—Source
and destination service
ports.
If you execute this command
multiple times, the most recent
configuration takes effect.
High Availability Configuration
Remarks
N/A

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