Filter
Top Products
DES-7200 Configuration Guide Chapter 3 MPLS Reliability Configuration
3-40
Caution
1、 BFD for LDP LSP can only support the LDP LSP triggered and
established by the host routing table.
2、 One LSP can only be bound with one BFD session.
3、 BFD can only be bound on the Ingress of LDP LSP.
4、 For certain applications needing BFD to detect faults (such as BFD for
LSP based deployment), the process-state parameter must be
configured.
5、 If the discriminators are configured manually, then My Discriminator and
Your Discriminator configured on Ingress LSR must correspond to My
Discriminator and Your Discriminator configured on Egress LSP.
3.2.4.3 Configure BFD on Egress LSR
By default, BFD for LDP LSP is disabled on the device. To enable BFD for LDP LSP, enter
privileged user mode and execute the following steps to configure BFD for LDP LSP:
Command Function
DES-7200# configure teminal
Enter global configuration mode.
DES-7200(config)# interface type ID
Enter interface configuration mode.
DES-7200(config-if-type ID)#no bfd
echo
Disable Echo.
DES-7200(config-if-type ID)# bfd
interval 50 min_rx 50 multiplier 3
Configure BFD session parameters.
DES-7200(config-if-type ID)# exit
Exit interface configuration mode.
DES-7200(config)#bfd bind
backward-lsp-with-ip peer-ip
20.20.20.20 interface
gigabitEthernet 0/1 source-ip
10.10.10.10 local-discriminator 2
remote-discriminator 1
Configure BFD for backward direction LSP with IP.
The source IP address of backward direction LSP is
10.10.10.10; the peer IP address is 20.20.20.20;
the egress interface is gigabitEthernet 0/1.
This step configures my discriminator as 2 and your
discriminator as 1.
When configuring BFD for LSP, if backward
direction LSP adopts IP detection, then the positive
direction LSP must be configured with my
discriminator and your discriminator, which must be
configured manually.
Or:
DES-7200(config)#mpls router ldp
Enter LDP configuration mode.