HP ProCurve 9304M Installation And Configuration Manual page 335

12. Enter a value for Priority. If two or more Backups are tied with the highest priority, the Backup with the highest
IP address becomes the Master for the VRID. The default Backup Priority is 100.
13. Enter a value for Backup Hello Interval. This interval is the number of seconds between Hello messages from
the Master to the Backups for a given VRID. The interval can from 60 –3600 seconds, with 60 seconds as the
default.
You must enable the Backup to send messages (advertise backup).
14. In the Dead Interval field. enter he amount of time a Backup waits for a Hello message from the Master for the
VRID before determining that the Master is no longer active.
If the Master does not send a Hello message before the dead interval expires, the Backups negotiate
(compare priorities) to select a new Master for the VRID.
15. Select Enable for Advertise Backup if you want to advertise routes to a backed up VRID even when the
Routing Switch is not the current active router for the VRID. Disabling the advertisements helps ensure that
other routers do not receive invalid route paths for the VRID. The default is Disabled.
16. Select Enable for the Preempt field to prevent a Backup with a higher VSRP priority from taking control of the
VRID from another Backup that has a lower priority but has already assumed control of the VRID. Select
Disable if you do not want to disable this feature. The default is enabled.
17. Enter a value for the Hold Down Interval field. This is the amount of time a Backup that has sent a Hello
packet announcing its intent to become Master waits before beginning to forward traffic for the VRID. The
hold-down interval prevents Layer 2 loops from occurring during VSRP's rapid failover.
The interval can from 1 – 84 seconds. The default is 2 seconds.
18. Indicate the maximum time-to-live value, which is the number of hops a VSRP Hello packet can traverse
before being dropped. You can specify from 1 – 255. The default is 2.
19. Click Enable for Router Save if you want the Backup to save the VSRP timer values received from the Master
instead of the timer values configured on the Backup (above). VSRP timer values that will be saved are:
• Hello interval
• Dead interval
• Backup Hello interval
• Hold-down interval
20. Enter the Track Priority value or leave it blank to use the default. If a tracked port's link goes down, the VRID
port's VSRP priority is reduced by the amount of the tracked port's priority. The default priority is 5.
21. In the Track Ports section, place a check mark in the box for a port whose link state is tracked by the VRID.
Typically, the tracked interface represents the other side of VRID traffic flow through the device.
If the link for a tracked interface goes down, the VSRP priority of the VRID interface is changed, causing the
devices to renegotiate for Master.
22. Click the Add button to add the VSRP switch.
23. Select the Save link at the bottom of the dialog. Select Yes when prompted to save the configuration change
to the startup-config file on the device's flash memory.
Modifying Authentication Parameters
You can modify the password that was configured for a VSRP interface on a separate panel of the Web
management interface.
1. Log on to the device using a valid user name and password for read-write access. The General System
configuration panel is displayed.
2. Click on the plus sign next to Monitor in the tree view to expand the list of configuration options.
3. Click on the plus sign next to VSRP in the tree view to expand the list of configuration options.
Configuring Metro Features
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