Configuring Irf Bridge Mac Persistence - HP FlexFabric 12900 Series Configuration Manual

Step

3.

Configure the

port-specific load

sharing mode.

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 bridge MAC owner leaves. However, the change causes transient traffic

disruption.

Depending on the network condition, enable the IRF fabric to retain or change its bridge MAC address

after the address owner leaves. Available options include:

irf mac-address persistent timer—Bridge MAC address of the IRF fabric remains unchanged for 6

•

minutes after the address owner leaves. If the owner does not return before the timer expires, the IRF

fabric uses the bridge MAC address of the current 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 address owner is removed.

undo irf mac-address persistent—Bridge MAC address of the current master replaces the original

•

one as soon as the owner of the original bridge MAC leaves.

When IRF fabrics merge, IRF ignores the IRF bridge MAC address and only checks the bridge MAC

address of each member device in the IRF fabrics. IRF merge fails if any two member devices have the

same bridge MAC address.

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

25

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.

Remarks

N/A