You can configure Label Distribution Protocol (LDP) link
protection for both unicast and multicast LDP label-switched paths
(LSPs) to provide resiliency during link or node failure.
Before you begin:
Configure the device interfaces.
Configure the router ID and autonomous system number for
the device.
Configure the following protocols:
RSVP
MPLS with traffic engineering capability.
OSPF with traffic engineering capability.
Note: For multicast LDP link protection with loop-free alternative
(LFA), enable link protection.
[edit protocols]
user@R0# set ospf area 0 interface all link-protection
To configure LDP link protection:
- Enable point-to-multipoint LDP LSPs.
[edit protocols]
user@R0# set ldp p2mp
- Enable LDP on all the interfaces of Router R0 (excluding
the management interface) and configure link protection with dynamic
RSVP bypass LSP.
[edit protocols]
user@R0# set ldp interface all link-protection dynamic-rsvp-lsp
user@R0# set ldp interface fxp0.0 disable
- Verify and commit the configuration.
For example:
[edit protocols]
user@R0# show protocols
rsvp {
interface all;
interface fxp0.0 {
disable;
}
}
mpls {
traffic-engineering;
interface all;
interface fxp0.0 {
disable;
}
}
ospf {
traffic-engineering;
area 0.0.0.0 {
interface all {
metric 1;
}
interface fxp0.0 {
disable;
}
}
}
ldp {
interface all {
link-protection {
dynamic-rsvp-lsp;
}
}
interface fxp0.0 {
disable;
}
p2mp;
}
[edit]
user@R0# commit
commit complete
