H3C LS-3100-52P-OVS-H3 Operation Manual - page 829
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Bidirectional detection in BFD control packet mode
Follow these steps to configure BFD for RIP (bidirectional detection in BFD control packet mode):
To do…
Use the command…
Remarks
Enter system view
system-view
—
Create a RIP process
and enter RIP view
rip [ process-id ] [ vpn-instance
vpn-instance-name ]
Required
By default, RIP is disabled.
Specify a RIP neighbor
peer ip-address
Required
By default, RIP does not
unicast updates to any peer.
Enter interface view
interface interface-type
interface-number
—
Enable BFD on the RIP
interface
rip bfd enable
Required
Disabled by default
z
Unidirectional detection in BFD echo packet mode only works for RIP neighbors that are directly
connected, namely, one hop away from each other.
z
Using the undo peer command does not remove the neighbor relationship at once and therefore
cannot bring down the BFD session at once.
z
For RIP configuration, refer to RIP Configuration in the IP Routing Volume.
Configuring BFD for BGP
The default BGP keepalive interval is 60 seconds and can be configured as 1 second at least. Thus, the
holdtime is 180 seconds by default and three seconds at least. This makes the detection of neighbor
relationships rather slow, and a large quantity of packets will be dropped when being transmitted or
received through a high-speed interface. BFD quickly detects neighbor relationships and reduces
network convergence time. Before configuring BFD for BGP, you need to enable BGP.
Follow these steps to enable BFD for a BGP peer:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enter BGP view
bgp as-number
—
Enable BFD for the specified BGP
peer
peer ip-address bfd
Required
Not enabled by default