Configuring Mpls Te Tunnel Constraints - HP MSR2000 Configuration Manual

Step
4. Enter area view.
5. Enable MPLS TE for the OSPF
area.
Configuring IS-IS TE
IS-IS TE uses a sub-TLV of the extended IS reachability TLV (type 22) to carry TE attributes. Because the
extended IS reachability TLV carries wide metrics, specify a wide metric-compatible metric style for the
IS-IS process before enabling IS-IS TE. Available metric styles for IS-IS TE include wide, compatible, or
wide-compatible. For more information about IS-IS, see Layer 3—IP Routing Configuration Guide.
Because of the following conditions, specify an MTU that is equal to or greater than 512 bytes on each
IS-IS enabled interface for IS-IS LSPs to be flooded on the network:
The length of the extended IS reachability TLV might reach the maximum of 255 bytes.
•
• The LSP header takes 27 bytes and the TLV header takes two bytes.
The LSP might also carry the authentication information.
•
To configure IS-IS TE:
Step
1. Enter system view.
2. Create an IS-IS process and
enter IS-IS view.
3. Specify a metric style.
4. Enable MPLS TE for the IS-IS
process.
5. Specify the types of the
sub-TLVs for carrying DS-TE
parameters.

Configuring MPLS TE tunnel constraints

Perform this task on the ingress node of the MPLS TE tunnel.
Configuring bandwidth constraints for an MPLS TE tunnel
Step
1. Enter system view.
2. Enter MPLS TE tunnel interface
view.
Command
area area-id
mpls te enable
Command
system-view
isis [ process-id ]
cost-style { wide |
wide-compatible | compatible
[ relax-spf-limit ] }
mpls te enable [ Level-1 | Level-2 ]
te-subtlv { bw-constraint value |
unreserved-bw-sub-pool value } *
Command
system-view
interface tunnel tunnel-number
[ mode mpls-te ]
69
Remarks
N/A
By default, an OSPF area does not
support MPLS TE.
Remarks
N/A
By default, no IS-IS process exists.
By default, only narrow metric style
packets can be received and sent.
For more information about this
command, see Layer 3—IP Routing
Command Reference.
By default, an IS-IS process does not
support MPLS TE.
By default, the bw-constraint
parameter is carried in sub-TLV 252,
and the unreserved-bw-sub-pool
parameter is carried in sub-TLV 251.
Remarks
N/A
N/A