Users Guide

CAUTION: Increasing the advertisement interval increases the VRRP Master dead interval, resulting in an increased
failover time for Master/Backup election. Take caution when increasing the advertisement interval, as the increased dead
interval may cause packets to drop during that switch-over time.
Table 98. Recommended VRRP Advertise Intervals on the S5000
Recommended Advertise Interval Groups/Interface
Total VRRP Groups S5000 S5000
Less than 250 1 second 512
Between 250 and 450 2–3 seconds 512
Between 450 and 600 3–4 seconds 512
Between 600 and 800 4 seconds 512
Between 800 and 1000 5 seconds 512
Between 1000 and 1200 7 seconds 512
Between 1200 and 1500 8 seconds 512
VRRP Conguration
By default, VRRP is not congured.
Conguration Task List
The following list species the conguration tasks for VRRP.
• Creating a Virtual Router
• Conguring a Virtual IP Address
• Setting VRRP Group (Virtual Router) Priority
• Conguring VRRP Authentication
• Disabling Preempt
• Changing the Advertisement Interval
• Track an Interface or Object
• Setting VRRP Initialization Delay
For a complete listing of all commands related to VRRP, refer to Dell Networking OS Command Line Reference Guide.
Creating a Virtual Router
To enable VRRP, create a virtual router. In Dell Networking Operating System (OS), the virtual router identier (VRID) identies a
VRRP group.
To enable or delete a virtual router, use the following commands.
• Create a virtual router for that interface with a VRID.
INTERFACE mode
vrrp-group vrid
The VRID range is from 1 to 255.
NOTE: The interface must already have a primary IP address dened and be enabled, as shown in the second
example.
• Delete a VRRP group.
Virtual Router Redundancy Protocol (VRRP)
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