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Brocade FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide User Manual

Page 103

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VSRP parameters (Continued)

TABLE 21

Parameter

Description

Default

For more
information

Backup Hello state
and interval

The amount of time between Hello messages
from a Backup to the Master.

The message interval can be from 60 - 3600
seconds.

You must enable the Backup to send the
messages. The messages are disabled by default
on Backups. The current Master sends Hello
messages by default.

Disabled

60 seconds
when enabled

Changing the backup
hello state and
interval setting

on

page 110

Hold-down interval 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 rapid failover.

The interval can from 1 - 84 seconds.

3 seconds

Changing the hold-
down interval setting

on page 110

Track priority

A VSRP priority value assigned to the tracked
ports. If a tracked port link goes down, the VRID
port VSRP priority is reduced by the amount of the
tracked port priority.

5

Changing the default
track priority setting

on page 110

Track port

A track port is a port or virtual routing interface
that is outside the VRID but 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.

None

Specifying a track
port setting

on page

111

Backup preempt
mode

Prevents 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.

Enabled

Disabling or re-
enabling backup pre-
emption setting

on

page 111

VRID active state

The active state of the VSRP VRID.

Disabled

Configuring basic
VSRP parameters

on

page 104

RIP parameters

Suppression of
RIP
advertisements

A Layer 3 Switch that is running RIP normally
advertises routes to a backed up VRID even when
the Layer 3 Switch is not currently the active
Layer 3 Switch for the VRID. Suppression of these
advertisements helps ensure that other Layer 3
Switches do not receive invalid route paths for the
VRID.

NOTE
This parameter is valid only on Layer 3 Switches.

Disabled

(routes are
advertised)

Suppressing RIP
advertisement from
backups

on page

112

Metro Features

FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide

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