Cabletron Systems SSIM-R8-02 Specifikace stáhnout pdf (Strana 138)

Configuring VRRP

118 Enterasys Xpedition User Reference Manual

Additional Configuration

This section covers settings you can modify in a VRRP configuration, including backup

priority, advertisement interval, pre-empt mode, and authentication key.

Setting the Backup Priority

As described in Multi-Backup Configuration on page 113, you can specify which Backup

router takes over when the Master router goes down by setting the priority for the Backup

routers. To set the priority for a Backup router, enter the following command in Configure

mode:

To specify 200 as the priority used by virtual router 1 on interface int1:

The priority can be between 1 (lowest) and 254. The default is 100. The priority for the IP

address owner is 255 and cannot be changed.

Setting the Warm-up Period

When the Master router goes down, the Backup router takes over. When an interface

comes up, the Master router may become available and take over from the Backup router.

Before the Master router takes over, it may have to update its routing tables. You can

specify a warm-up period, in seconds, during which the Master router can update its

routing information before it preempts the existing Master router.

To specify a warm-up period for a Master router before it takes over:

The warm-up period can be between 1 and 180 seconds. The default is 30 seconds.

Setting the Advertisement Interval

The VRRP Master router sends periodic advertisement messages to let the other routers

know that the Master is up and running. By default, advertisement messages are sent once

each second. To change the VRRP advertisement interval, enter the following command in

Configure mode:

ssr(config)# ip-redundancy set vrrp 1 interface int1 priority 200

ssr(config)# ip-redundancy set vrrp 1 warmup-period 20

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Cabletron Systems SSIM-R8-02 Specifikace Strana 138