Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) User Manual

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Multi-Service IronWare Routing Configuration Guide

53-1003033-02

VRRP and VRRP-E parameters

Backup priority

A numeric value that determines a Backup’s
preferability for becoming the Master for the VRID.
During negotiation, the router with the highest priority
becomes the Master:

VRRP – The Owner has the highest priority (255);
other routers can have a priority from 8 through
255.

VRRP-E – All routers are Backups and have the
same priority by default.

If two or more Backups are tied with the highest
priority, the Backup interface with the highest IP
address becomes the Master for the VRID.

VRRP – 255 for the
Owner; 100 for each
Backup
VRRP-E – 100 for all
Backups

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Suppression of
RIP
advertisements

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

Disabled

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Hello interval

The number of seconds or milliseconds between Hello
messages from the Master to the Backups for a given
VRID. The interval can be from 1 through 84 seconds
for VRRP v2 and VRRP-E v2. The interval can be from
100 milliseconds through 84000 milliseconds for
VRRP v3 and VRRP-E v3.

One second (VRRP v2
and VRRP-E v2)
1000 milliseconds
(VRRP v3 and VRRP-E
v3)

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Dead interval

The number of seconds or milliseconds 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VRID before determining that the Master is no longer
active.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.

Internally derived from
Hello Interval. It is
approximately 3.5
times of the Hello
Interval.

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Backup Hello
interval

The number of seconds between Hello messages
from a Backup to the Master.
The message interval can be from 60 through 3600
seconds.
You must enable the Backup to send the messages.
The messages are disabled by default on Backups.
The current Master (whether the VRRP Owner or a
Backup) sends Hello messages by default.

Disabled
60 seconds when
enabled

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Track port

Another Brocade port or virtual interface whose link
status is tracked by the VRID’s interface.
If the link for a tracked interface goes down, the VRRP
or VRRP-E priority of the VRID interface is changed,
causing the devices to renegotiate for Master.

None

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Track priority

A VRRP or VRRP-E priority value assigned to the
tracked ports. If a tracked port’s link goes down, the
VRID port’s VRRP or VRRP-E priority changes:

VRRP – The priority changes to the value of the
tracked port’s priority.

VRRP-E – The VRID port’s priority is reduced by
the amount of the tracked port’s priority.

VRRP – 2
VRRP-E – 5

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TABLE 170

VRRP and VRRP-E parameters (Continued)

Parameter

Description

Default

Refer page...

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