HP MSR2000/3000/4000 Router Series MPLS Configuration Guide

66
Ste
p
Command Remarks
4. Configure the bandwidth and
the CT that the bypass tunnel
can protect.
mpls te backup bandwidth
{ bandwidth | { ct0 | ct1 | ct2 |
ct3 } { bandwidth | un-limited } }
By default, the bypass tunnel does
not provide bandwidth protection.
You must execute this command to
configure the bandwidth that the
bypass tunnel can protect.
Otherwise, the primary CRLSP
cannot be bound to the bypass
tunnel successfully.
5. Return to system view.
quit N/A
6. Enter interface view of the
egress interface of the
primary CRLSP.
interface interface-type
interface-number
N/A
7. Specify a bypass tunnel for
the protected interface (the
current interface).
rsvp fast-reroute bypass-tunnel
tunnel tunnel-number
By default, no bypass tunnel is
specified for an interface.
Configuring node fault detection
Perform this task to configure the RSVP hello mechanism or BFD on the PLR and the protected node to
detect the node faults caused by signaling protocol faults. FRR does not need to use the RSVP hello
mechanism or BFD to detect the node faults caused by the link faults between the PLR and the protected
node.
You do not need to perform this task for FRR link protection.
To configure node fault detection:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter interface view of the
connecting interface between
the PLR and the protected
node.
interface interface-type
interface-number
N/A
3. Configure node fault
detection.
• (Method 1) Enable RSVP hello
extension on the interface:
rsvp hello enable
• (Method 2) Enable BFD on the
interface:
rsvp bfd enable
Use either method.
By default, RSVP hello
extension is disabled, and
BFD is not configured.
For more information about
the rsvp hello enable
command and the rsvp bfd
enable command, see
"Configuring RSVP."
Configuring the optimal bypass tunnel selection interval
If you have specified multiple bypass tunnels for a primary CRLSP, RSVP selects an optimal bypass tunnel
to protect the primary CRLSP. Sometimes, a bypass tunnel might become better than the current optimal