75
Step Command
Remarks
8.
Bind the bypass tunnel with
the protected interface.
mpls te fast-reroute
bypass-tunnel tunnel
tunnel-number
N/A
Configuring node protection
To use FRR for node protection, perform the configuration in this section on the PLR and the
protected node. If you only need to protect links, skip this section.
To configure node protection:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter MPLS view.
mpls
N/A
3.
Enable RSVP hello
extension on current node.
mpls rsvp-te hello
Disabled by default.
4.
Exit to system view.
quit
N/A
5.
Enter the view of the
interface directly connected
to the protected node or
PLR.
interface
interface-type
interface-number
N/A
6.
Enable RSVP hello
extension on the interface.
mpls rsvp-te hello
Disabled by default.
NOTE:
RSVP hello extension is configured to detect node failures caused by problems such as signaling
error other than failures caused by link failures.
Configuring the FRR polling timer
The protection provided by FRR is temporary. Once a protected LSP becomes available again or a
new LSP is established, traffic is switched to the protected or new LSP. After this switchover, the PLR
polls available bypass tunnels for the best one at the regular interval specified by the FRR polling
timer:
To configure the FRR polling timer:
Step Command
Remarks
1.
Enter system view of the
PLR node.
system-view
N/A
2.
Enter MPLS view.
mpls
N/A
3.
Configure the FRR polling
timer.
mpls te timer fast-reroute
[
seconds
]
Optional.
The FRR polling timer is 300
seconds by default.