Dell PowerSwitch S4128F-ON EMC SmartFabric OS10 User Guide Release 10.5.0 - Page 540
BFD for OSPF, Enable BFD Globally, Establishing BFD sessions with OSPFv2 neighbors
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Last read 00:24:31 seconds Hold time is 180, keepalive interval is 60 seconds Configured hold time is 180, keepalive interval is 60 seconds Fall-over disabled Neighbor is using Global level BFD Configuration Received 784 messages 1 opens, 0 notifications, 0 updates 783 keepalives, 0 route refresh requests Sent 780 messages 2 opens, 0 notifications, 0 updates 778 keepalives, 0 route refresh requests Minimum time between advertisement runs is 30 seconds Minimum time before advertisements start is 0 seconds Capabilities received from neighbor for IPv4 Unicast: MULTIPROTO_EXT(1) ROUTE_REFRESH(2) CISCO_ROUTE_REFRESH(128) 4_OCTET_AS(65) Capabilities advertised to neighbor for IPv4 Unicast: MULTIPROTO_EXT(1) ROUTE_REFRESH(2) CISCO_ROUTE_REFRESH(128) 4_OCTET_AS(65) Prefixes accepted 0, Prefixes advertised 0 Connections established 1; dropped 0 Last reset never For address family: IPv4 Unicast Allow local AS number 0 times in AS-PATH attribute Prefixes ignored due to: Martian address 0, Our own AS in AS-PATH 0 Invalid Nexthop 0, Invalid AS-PATH length 0 Wellknown community 0, Locally originated 0 Local host: 20.1.1.2, Local port: 179 Foreign host: 20.1.1.1, Foreign port: 58248 BFD for OSPF You can configure BFD to monitor and notify reachability status between OSPF neighbors. When you use BFD with OSPF, BFD sessions are established between all neighboring interfaces participating with OSPF full state. If a neighboring interface fails, BFD notifies OSPF protocol that a link state change has occurred. To configure BFD for OSPF: 1. Enable BFD Globally. 2. Configure OSPF on the interconnecting routers. For more information, see Open Shortest Path First (OSPFv2 and OSPFv3). Enable BFD Globally To enable BFD globally: Enable BFD globally. bfd enable CONFIGURATION Mode Establishing BFD sessions with OSPFv2 neighbors You can establish BFD sessions with all OSPF neighbors at one go. Alternatively, you can also establish BFD sessions with OSPF neighbors corresponding to a single OSPF interface. To establish BFD sessions with OSPFv2 neighbors: 1. Enable BFD globally bfd enable CONFIGURATION Mode 2. Enter ROUTER-OSPF mode 540 Layer 3
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