Dell Force10 S55T S55 Configuration Guide FTOS 8.3.5.3 - Page 774

www.dell.com | support.dell.com The recommendations in Table 45-1 may vary depending on various factors like ARP broadcasts, IP broadcasts, or 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 in 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 extra caution when increasing the advertisement interval, as the increased dead interval may cause packets to be dropped during that switch-over time. VRRP Configuration By default, VRRP is not configured. Configuration Task List for VRRP The following list specifies the configuration tasks for VRRP: • Create a Virtual Router on page 774 (mandatory) • Assign Virtual IP addresses on page 775 (mandatory) • Set VRRP Group (Virtual Router) Priority on page 777 (optional) • Configure VRRP Authentication on page 778 (optional) • Disable Preempt on page 779 (optional) • Change the Advertisement interval on page 780 (optional) • Track an Interface on page 781 (optional) For a complete listing of all commands related to VRRP, refer to FTOS Command Line Interface. Create a Virtual Router To enable VRRP, you must create a Virtual Router. In FTOS, a VRRP Group is identified by the Virtual Router Identifier (VRID). To enable a Virtual Router, use the following command in the INTERFACE mode. To delete a VRRP group, use the no vrrp-group vrid command in the INTERFACE mode. Task Command Syntax Command Mode Create a virtual router for that interface vrrp-group vrid with a VRID. VRID Range: 1-255 INTERFACE Note: The interface must already have a Primary IP Address defined, and be enabled. 774 | Virtual Router Redundancy Protocol (VRRP)