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Configuring VRRP and VRRPE
Table 12.1: VRRP and VRRPE Parameters (Continued)
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 3 –
254.
• VRRPE – 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
VRRPE – 100 for all
Backups
12-15
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 12-16
Hello interval The number of seconds between Hello messages
from the Master to the Backups for a given VRID.
The interval can from 1 – 84 seconds.
One second 12-4
12-16
Dead interval The number of seconds 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determining that the Master is no longer active.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.
Three times the Hello
Interval plus one-half
second
12-4
12-16
Backup Hello
interval
The number of seconds 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 (whether the VRRP Owner or a
Backup) sends Hello messages by default.
Disabled
60 seconds when
enabled
12-4
12-17
Track port Another routing switch 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 VRRPE priority of the VRID interface is
changed, causing the devices to renegotiate for
Master.
None 12-5
12-17
Parameter Description Default See page...
12 - 11