R2511-HP MSR Router Series MPLS Configuration Guide(V5)

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through the sub-TLV of IS reachability TLV (type 22). HP recommends that you avoid enabling IS-IS TE on
an interface configured with secondary IP addresses.
For more information about IS-IS, see Layer 3—IP Routing Configuration Guide.
To configure IS-IS TE:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter IS-IS view.
isis [ process-id ] N/A
3. Configure the wide metric
attribute of IS-IS.
cost-style { narrow | wide |
wide-compatible | { compatible |
narrow-compatible }
[ relax-spf-limit ] }
By default, IS-IS uses narrow metric
style.
4. Enable IS-IS TE.
traffic-eng [ level-1 | level-2 |
level-1-2 ]
Disabled by default.
5. Configure the TLV type of the
sub-TLV carrying DS-TE
parameters.
te-set-subtlv { bw-constraint value
| lo-multiplier value |
unreserved-bw-sub-pool value }
Optional.
By default, the bw-constraint
parameter is carried in sub-TLV
252, the lo-multiplier parameter in
sub-TLV 253, and the
unreserved-bw-sub-pool
parameter in sub-TLV 251.
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 strict or loose.
• Strict—The two nodes are directly connected.
• Loose—The two nodes have devices in between.
When inserting nodes to an explicit path or modifying nodes on it, you can 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.
When establishing an MPLS TE tunnel between areas or ASs, use a loose explicit route, specify the ABR
or ASBR as the next hop of the route, and make sure the tunnel's ingress node and the ABR or ASBR can
reach each other.
To configure an MPLS TE explicit path:
Ste
p
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. The
explicit path traverses the specified
node and the next node is a strict
node.