Configuring an mpls te explicit path – H3C Technologies H3C SR8800 User Manual

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NOTE:

For more information about IS-IS, see

Layer 3—IP Routing Configuration Guide.

IS-IS TE does not support secondary IP address advertisement. With IS-IS TE enabled on an interface
configured with multiple IP addresses, IS-IS TE advertises only the primary IP address of the interface
through the sub-TLV of IS reachability TLV (type 22). H3C does not recommend enabling IS-IS TE on an

interface configured with secondary IP addresses.

Configuring an MPLS TE explicit path

An explicit path is a set of nodes. The relationship between any two neighboring nodes on an explicit

path can be either of the following:

Strict: where the two nodes are directly connected.

Loose: where the two nodes have routers in between.

When inserting nodes to an explicit path or modifying nodes on it, you may configure the include

keyword to have the established LSP traverse the specified nodes or the exclude keyword to have the
established LSP bypass the specified nodes.
To configure an MPLS TE explicit path:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Create an explicit path for
MPLS TE tunneling and enter

its view.

explicit-path path-name [ disable |
enable ]

N/A

3.

Add a node to the explicit
path.

add hop ip-address1 [ include
[ loose | strict ] | exclude ] { after |

before } ip-address2

Optional.
By default, the include keyword
and the strict keyword apply. In

other words, the explicit path

traverses the specified node and
the next node is a strict node.

4.

Specify a next hop IP address

on the explicit path.

next hop ip-address [ include
[ loose | strict ] | exclude ]

The next hop is a strict node by
default.
Repeat this step to define a
sequential set of the hops that the

explicit path traverses.

5.

Modify the IP address of
current node on the explicit

path.

modify hop ip-address1
ip-address2 [ [ include [ loose |

strict ] | exclude ]

Optional.
By default, the include keyword

and the strict keyword apply. In
other words, the explicit path

traverses the specified node and

the next node is a strict node.

6.

Remove a node from the
explicit path.

delete hop ip-address Optional.

7.

Display information about the

specified or all nodes on the
explicit path.

list hop [ ip-address ]

Optional.

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