Setting The Irf Link Down Report Delay; Improving Interface Card Availability In A Four-Chassis 7506 Or 7506-V Irf Fabric - HP 7500 series Configuration Manual

Step
2. Enable an IRF fabric to
automatically
the system software of the
master to the switch you are
adding to the IRF fabric.

Setting the IRF link down report delay

You can avoid link flapping causing frequent IRF splits and merges during a short time by configuring the
IRF ports to delay reporting link down events. An IRF port thus works as follows:
• When the IRF link changes from up to down, the port does not immediately report the change to the
IRF fabric. If the IRF link state is still down when the delay time is reached, the port reports the
change to the IRF fabric.
When the IRF link changes from down to up, the link layer immediately reports the event to the IRF
•
fabric.
To set the IRF link down report delay:
Step
1. Enter system view.
2. Set the IRF link down report
delay.
Improving interface card availability in a four-chassis 7506 or
7506-V IRF fabric
If the IRF member ID of a 7506 or 7506-V switch is 4, the card in its slot 7 by default cannot work.
If you are setting up a four-chassis 7506 or 7506-V IRF fabric, perform the task in this section to resolve
the issue. This task enables you to use any available card but those in
If you are setting an IRF fabric that has fewer members, do not assign member ID 4 to any member
switch.
This task also disables the PBR feature. To implement policy-based routing, use the MQC feature of QoS.
To enhance the availability of slot 7 on member switch 4 in a four-chassis 7506 or 7506-V IRF fabric,
perform the following task in IRF mode:
Step
1. Enter system view.
2. Disable PBR.
3. Save the configuration.
Command
synchronize
irf auto-update enable
Command
system-view
irf link-delay interval
Command
system-view
irf-pbr disable
save
Remarks
N/A
The default IRF link down report delay is 4
seconds.
If your IRF fabric requires a fast
master/subordinate or IRF link switchover or
has deployed the BFD or GR feature, HP
recommends setting the delay to 0 seconds.
25
Remarks
Disabled by default.
Table 1 in the slot.
Remarks
N/A
By default, PBR is enabled.
N/A