Dell Force10 Z9000 FTOS Configuration Guide for Z9000 System - Page 131

Establishing a session on physical ports To establish a session, BFD must be enabled at interface level on both ends of the link, as shown in the following illustration. The configuration parameters do not need to match. Figure 7-5. Establishing a BFD Session for Physical Ports R1: ACTIVE Role 4/24 R2: ACTIVE Role 2/1 FTOS(config)# bfd enable FTOSconfig)# interface gigabitethernet 2/1 FTOS(conf-if-gi-2/1)# ip address 2.2.2.2/24 FTOS(conf-if-gi-2/1)# bfd neighbor 2.2.2.1 FTOS(config)# bfd enable FTOS(config)# interface gigabitethernet 4/24 FTOS(conf-if-gi-2/1)# ip address 2.2.2.1/24 FTOS(conf-if-gi-2/1)# bfd neighbor 2.2.2.2 fnC0038mp To establish a session: Step 1 2 3 Task Command Syntax Enter interface mode Assign an IP address to the interface if one is not already assigned. Identify the neighbor with which the interface will participate in the BFD session. interface ip address ip-address bfd neighbor ip-address Command Mode CONFIGURATION INTERFACE INTERFACE Verify that the session is established using the command show bfd neighbors, as shown in the following illustration Figure 7-6. Viewing Established Sessions for Physical Ports R1(conf-if-gi-4/24)#do show bfd neighbors * - Active session role Ad Dn - Admin Down C - CLI I - ISIS O - OSPF R - Static Route (RTM) LocalAddr * 2.2.2.1 RemoteAddr 2.2.2.2 Interface State Rx-int Tx-int Mult Clients Gi 4/24 Up 100 100 3 C BFD Session The command show bfd neighbors detail shows more specific information about BFD sessions as seen in the following example. Bidirectional Forwarding Detection (BFD) | 131