Configuring Bgp Auto Frr - Huawei Quidway NetEngine80E Configuration Manual

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
BFD is enabled for the peer or peer group, and a BFD session is established using default
parameters.
single-hop-prefer takes effect only on IBGP peers. By default, if single-hop-prefer is not
specified, multi-hop sessions are established between direct IBGP peers (Huawei devices). To
interconnect a Huawei device and a non-Huawei device that defaults the sessions between IBGP
peers to single-hop, configure single-hop-prefer in the command.
After BFD is enabled for a peer group, BFD sessions will be created on the peers that belong to
this peer group and are not configured with the peer bfd block command.
Step 8 (Optional) Run:
peer ipv4-address bfd block
A peer is prevented from inheriting the BFD function of the peer group to which it belongs.
If a peer joins a peer group enabled with BFD, the peer inherits the BFD configuration of the
group and creates a BFD session. To prevent the peer from inheriting the BFD function of the
peer group, perform this step.
----End
Checking the Configurations
After configuring BFD for BGP, you can run the following command to check the
configurations.
l
# View information about the BFD session between BGP peers.
<HUAWEI> display bgp bfd session peer 10.1.1.2
Local_Address
10.1.1.1
Tx-interval(ms)
100
Wtr-interval(m)
0

8.21 Configuring BGP Auto FRR

Border Gateway Protocol (BGP) Auto fast reroute (FRR), a protection measure against link
faults, applies to the network topology with both primary and backup links. It can be configured
for services that are sensitive to packet loss and delay.
Applicable Environment
As networks evolve continuously, voice, on-line video, and financial services raise increasingly
high requirements for real-time performance. Usually, primary and backup links are deployed
on a network to ensure the stability of these services.
Issue 02 (2014-09-30)
NOTE
The peer bfd block command and the peer bfd enable command are mutually exclusive. After the peer
bfd block command is run, the BFD session is automatically deleted.
Run the display bgp bfd session { [ vpnv4 vpn-instance vpn-instance-name ] peer ipv4-
address | all } command to check information about the BFD session between BGP peers.
Peer_Address
10.1.1.2
Rx-interval(ms)
100
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LD/RD Interface
8192/8192 GigabitEthernet1/0/2
Multiplier Session-State
3 Up
8 BGP Configuration
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