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1. Enter system view.
system-view
N/A
2.
interface view.
interface tunnel
tunnel-number
[
mode
mpls-te
]
N/A
3. Enable tunnel reoptimization.
mpls te reoptimization
[
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:
1. Enter system view.
N/A
2. Enter interface view.
interface
interface-type
interface-number
N/A
3.
threshold.
mpls te bandwidth change
thresholds
{
down
|
up
} percent
By default, the up/down threshold
is 10%
bandwidth.
4. Return to system view.
quit
N/A
5. Enter MPLS TE view.
mpls te
N/A
6.
interval.
link-management
interval
By default, the flooding interval is
180 seconds.
Controlling MPLS TE tunnel setup
Before performing the configuration tasks in this section, be aware of each configuration objective
and its impact on your device.
Perform the tasks in this section on the ingress node of the MPLS TE tunnel.
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