R0106-HP MSR Router Series MPLS Configuration Guide(V7)
73
Ste
p
Command
Remarks
2. Enter MPLS TE tunnel interface
view.
interface tunnel tunnel-number
[ mode mpls-te ]
N/A
3. Enable route pinning.
mpls te route-pinning
By default, route pinning is
disabled.
Configuring tunnel reoptimization
Tunnel reoptimization allows you to manually or dynamically trigger the ingress node to recalculate a
path. If the ingress node recalculates a better path, it creates a new CRLSP, switches the traffic from the
old CRLSP to the new CRLSP, and then deletes the old CRLSP.
Perform this task on the ingress node of an MPLS TE tunnel.
To configure tunnel reoptimization:
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
2. Enter MPLS TE tunnel interface
view.
interface tunnel tunnel-number
[ mode mpls-te ]
N/A
3. Enable tunnel reoptimization.
mpls te reoptimization [ frequency
seconds ]
By default, tunnel reoptimization is
disabled.
4. Return to user view.
return N/A
5. (Optional.) Immediately
reoptimize all MPLS TE tunnels
that are enabled with the
tunnel reoptimization function.
mpls te reoptimization N/A
Configuring TE flooding thresholds and interval
When the bandwidth of an MPLS TE link changes, IGP floods the new bandwidth information, so the
ingress node can use CSPF to recalculate the path.
To prevent such recalculations from consuming too many resources, you can configure IGP to flood only
significant bandwidth changes by setting the following flooding thresholds:
• Up threshold—When the percentage of the reservable-bandwidth increase to the maximum
reservable bandwidth reaches the threshold, IGP floods the TE information.
• Down threshold—When the percentage of the reservable-bandwidth decrease to the maximum
reservable bandwidth reaches the threshold, IGP floods the TE information.
You can also configure the flooding interval at which bandwidth changes that cannot trigger immediate
flooding are flooded.
This task can be performed on all nodes that the MPLS TE tunnel traverses.
To configure TE flooding thresholds and the flooding interval:
Ste
p
Command
Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A