Vrrp Configuration; Configuration Task List - Dell S4820T Configuration Manual

The following recommendations shown may vary depending on various factors like address resolution
protocol (ARP) broadcasts, IP broadcasts, or spanning tree protocol (STP) before changing the
advertisement interval. When the number of packets processed by RP2/CP/FP processor increases or
decreases based on the dynamics of the network, the advertisement intervals may increase or decrease
accordingly.
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 be dropped
during that switch-over time.
Table 85. Recommended VRRP Advertise Intervals on the S4820T
Recommended Advertise
Interval
Total VRRP Groups
Less than 250
Between 250 and 450
Between 450 and 600
Between 600 and 800
Between 800 and 1000
Between 1000 and 1200
Between 1200 and 1500

VRRP Configuration

By default, VRRP is not configured.

Configuration Task List

The following list specifies the configuration tasks for VRRP.
• Creating a Virtual Router
• Configuring the VRRP Version for an IPv4 Group
• Assign Virtual IP Addresses
• Setting VRRP Group (Virtual Router) Priority
• Configuring VRRP Authentication
• Disabling Preempt (optional)
• 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.
1118
S4820T
1 second
2–3 seconds
3–4 seconds
4 seconds
5 seconds
7 seconds
8 seconds
(mandatory)
mandatory)
(optional)
(optional)
(optional)
Groups/Interface
S4820T
12
24
36
48
84
100
120
(optional)
Virtual Router Redundancy Protocol (VRRP)