Configuring Bfd For Rip - H3C LS-3100-52P-OVS-H3 Operation Manual

To do...
Enable BFD on the IS-IS
interface
For details about IS-IS, refer to IS-IS Configuration in the IP Routing Volume.

Configuring BFD for RIP

RIP periodically sends route update requests to neighbors. If no route update response for a route is
received within the specified interval, RIP considers the route unreachable. This mechanism cannot
detect link faults quickly.
After BFD is configured for RIP, when BFD detects a broken link, RIP can quickly age out the
unreachable route before the update timer expires.
RIP with BFD support provides two link detection modes:
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
Follow these steps to configure BFD for RIP (single-hop detection in BFD echo packet mode):
To do...
Enter system view
Configure the source IP
address of BFD echo
packets
Enter interface view
Enable BFD on the RIP
interface
Use the command...
isis bfd enable
Use the command...
system-view
bfd echo-source-ip ip-address
interface interface-type
interface-number
rip bfd enable
1-8
Remarks
Required
Not enabled by default
Remarks
—
Required
By default, no source IP
address is configured for
BFD echo packets.
—
Required
Disabled by default.