Dell Force10 Z9000 FTOS Configuration Guide for Z9000 System - Page 152

www.dell.com | support.dell.com Figure 7-24. Viewing Established Sessions for VRRP Neighbors R1(conf-if-gi-4/25)#do show vrrp GigabitEthernet 4/1, VRID: 1, Net: 2.2.5.1 State: Backup, Priority: 1, Master: 2.2.5.2 Hold Down: 0 sec, Preempt: TRUE, AdvInt: 1 sec Adv rcvd: 95, Bad pkts rcvd: 0, Adv sent: 933, Gratuitous ARP sent: 3 Virtual MAC address: 00:00:5e:00:01:01 Virtual IP address: 2.2.5.4 Authentication: (none) BFD Neighbors: RemoteAddr State VRRP BFD Session 2.2.5.2 Up Changing VRRP session parameters BFD sessions are configured with default intervals and a default role. The parameters that can be configured are: Desired TX Interval, Required Min RX Interval, Detection Multiplier, and system role. You can change parameters for all VRRP sessions for a particular neighbor. To change parameters for all VRRP sessions: Step 1 Task Change parameters for all VRRP sessions. Command Syntax Command Mode vrrp bfd all-neighbors interval milliseconds min_rx milliseconds multiplier value role [active | passive] INTERFACE To change parameters for a particular VRRP session: Step 1 Task Change parameters for a particular VRRP session. Command Syntax Command Mode vrrp bfd neighbor ip-address interval milliseconds min_rx milliseconds multiplier value role [active | passive] INTERFACE View session parameters using the command show bfd neighbors detail, as shown in Figure 7-8. Disabling BFD for VRRP If any or all VRRP sessions are disabled, the sessions are torn down. A final Admin Down control packet is sent to all neighbors and sessions on the remote system change to the Down state (Remote System State Change due to Local State Admin Down). 152 | Bidirectional Forwarding Detection (BFD)