4 vrrp configuration notes, Vrrp configuration notes -13 – Riverstone Networks WICT1-12 User Manual

Page 209

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Riverstone Networks RS Switch Router User Guide Release 8.0 12-13

VRRP Configuration Guide

VRRP Configuration Notes

To display VRRP statistics for virtual router 100 on interface int1:

To display VRRP information, enter the following commands in Enable mode.

12.4 VRRP CONFIGURATION NOTES

The Master router sends keep-alive advertisements. The frequency of these keep-alive
advertisements is determined by setting the Advertisement interval parameter. The default value is
1 second.

If a Backup router doesn’t receive a keep-alive advertisement from the current Master within a
certain period of time, it will transition to the Master state and start sending advertisements itself.
The amount of time that a Backup router will wait before it becomes the new Master is based on the
following equation:

Master-down-interval = (3 * advertisement-interval) + skew-time

The skew-time depends on the Backup router's configured priority:

rs# ip-redundancy show vrrp 1 interface int1 verbose

VRRP Virtual Router 100 - Interface int1

------------------------------------------

Uptime 0 days, 0 hours, 0 minutes, 17 seconds.

State Backup

Priority 100 (default value)

Virtual MAC address 00005E:000164

Advertise Interval 1 sec(s) (default value)

Preempt Mode Enabled (default value)

Authentication None (default value)

Primary Address 10.8.0.2

Associated Addresses 10.8.0.1

100.0.0.1

Stats:

Number of transitions to master state 2

VRRP advertisements rcvd 0

VRRP packets sent with 0 priority 1

VRRP packets rcvd with 0 priority 0

VRRP packets rcvd with IP-address list mismatch 0

VRRP packets rcvd with auth-type mismatch 0

VRRP packets rcvd with checksum error 0

VRRP packets rcvd with invalid version 0

VRRP packets rcvd with invalid VR-Id 0

VRRP packets rcvd with invalid adv-interval 0

VRRP packets rcvd with invalid TTL 0

VRRP packets rcvd with invalid 'type' field 0

VRRP packets rcvd with invalid auth-type 0

VRRP packets rcvd with invalid auth-key 0

Display information about all virtual
routers.

ip-redundancy show vrrp

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