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Assigning priorities to a tunnel, Configuring traffic forwarding, Configuration prerequisites – H3C Technologies H3C S7500E Series Switches User Manual

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To do…

Use the command...

Remarks

Enter system view

system-view

––

Enter MPLS TE tunnel interface

view

interface tunnel

tunnel-number

––

Configure maximum number of

tunnel setup retries

mpls te retry

times

Optional

The default is 5.

Configure the tunnel setup retry

interval

mpls te timer retry seconds

Optional

The default is 2 seconds.

Submit current tunnel

configuration

mpls te commit

Required

Assigning priorities to a tunnel

Two priorities, setup priority and holding priority, are assigned to paths for MPLS TE to make
preemption decision. For a new path to preempt an existing path, the setup priority of the new path
must be greater than the holding priority of the existing path.

To avoid flapping caused by improper preemptions between CR-LSPs, the setup priority of a CR-LSP
should not be set higher than its holding priority.

Follow these steps to assign priorities to a tunnel:

To do…

Use the command...

Remarks

Enter system view

system-view

––

Enter MPLS TE tunnel interface

view

interface tunnel

tunnel-number

––

Assign priorities to the tunnel

mpls te priority setup-priority

[ hold-priority ]

Optional

The default setup and holding

priorities are 7.

Submit current tunnel

configuration

mpls te commit

Required

Configuring Traffic Forwarding

Configuration Prerequisites

Before configuring traffic forwarding, do the following:

z

Configure MPLS basic capabilities

z

Configure MPLS TE basic capabilities

z

Configure MPLS TE tunnels