Dell Force10 Z9000 FTOS Configuration Guide for Z9000 System - Page 952

www.dell.com | support.dell.com Table 49-1. Recommended VRRP Advertise Intervals Recommended Advertise Interval Groups/Interface Total VRRP Groups Between 450 and 600 E-Series 3 seconds Between 600 and 800 Between 800 and 1000 Between 1000 and 1200 Between 1200 and 1500 4 seconds 5 seconds 7 seconds 8 seconds E-Series E-Series C-Series S-Series Z-Series ExaScale TeraScale C-Series S-Series Z-Series 4 seconds 3 - 4 seconds 3 - 4 512 seconds 5 seconds 4 seconds 4 seconds 512 5 seconds 5 seconds 5 seconds 512 7 seconds 7 seconds 7 seconds 512 8 seconds 8 seconds 8 seconds 512 255 36 36 36 255 48 48 48 255 84 84 84 255 100 100 100 255 120 120 120 Note: The 1500 VRRP groups are supported in FTOS Release 6.3.1.0 and later. The recommendations in Table 49-1 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 953 (mandatory) • Assign Virtual IP addresses (mandatory) • Set VRRP Group (Virtual Router) Priority (optional) • Configure VRRP Authentication (optional) • Disable Preempt (optional) • Change the Advertisement interval (optional) • Track an Interface (optional) • VRRP initialization delay For a complete listing of all commands related to VRRP, refer to FTOS Command Line Interface. 952 | Virtual Router Redundancy Protocol (VRRP)