Dell MX9116n EMC SmartFabric OS10 User Guide Release 10.5.1 - Page 599
BFD for OSPF, Verify BFD for BGP, Global BFD is enabled
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Number of packets received from neighbor: 7138 Number of packets sent to neighbor: 7138 Verify BFD for BGP OS10(config-router-bgp-101)# show ip bgp summary BGP router identifier 30.1.1.2 local AS number 101 Global BFD is enabled Neighbor AS MsgRcvd MsgSent Up/Down State/Pfx 20.1.1.1 101 781 777 11:16:13 0 30.1.1.1 101 787 779 11:15:35 0 OS10(config-router-bgp-101)# show ip bgp neighbors BGP neighbor is 20.1.1.1, remote AS 101, local AS 101 internal link BGP version 4, remote router ID 30.1.1.1 BGP state ESTABLISHED, in this state for 11:19:01 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). Layer 3 599
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