H3C Technologies H3C SR8800 - Manual (Page 57)

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• Single-hop detection in BFD echo packet mode for a directly connected neighbor. In this mode, a
BFD session is established only when the neighbor has route information to send.
• Bidirectional detection in BFD control packet mode for an indirectly connected neighbor. In this
mode, a BFD session is established only when both ends have routes to send and BFD is enabled
on the receiving interface.
Single-hop detection in BFD echo packet mode
To configure BFD for RIP (single-hop detection in BFD echo packet mode):
Step Command Remarks
1. Enter system view. system-view N/A
2. Configure the source IP
address of BFD echo packets. bfd echo-source-ip ip-address By default, no source IP address is
configured for BFD echo packets.
3. Enter interface view.
interface interface-type
interface-number
N/A
4. Enable BFD on the RIP
interface.
rip bfd enable Disabled by default.
Bidirectional detection in BFD control packet mode
To configure BFD for RIP (bidirectional detection in BFD control packet mode):
Step Command Remarks
1. Enter system view. system-view N/A
2. Create a RIP process and
enter RIP view. rip [ process-id ] [ vpn-instance
vpn-instance-name ]
By default, RIP is disabled.
3. Specify a RIP neighbor. peer ip-address
By default, RIP does not unicast
updates to any peer.
4. Enter interface view.
interface interface-type
interface-number
N/A
5. Enable BFD on the RIP
interface.
rip bfd enable Disabled by default.
NOTE:
•
Unidirectional detection in BFD echo packet mode only works for RIP neighbors that are directly
connected (one hop away from each other).
• Using the undo peer command does not remove the neighbor relationship at once; therefore, it cannot
bring down the BFD session at once.
Displaying and maintaining RIP