3Com MSR 50 Series, Configuration Manual

Page: 1363 / 2443

Configuring MPLS TE Tunnel with Dynamic Signaling Protocol 1363
The OSPF TE extension uses Opaque Type 10 LSAs to carry TE attributes of links.
Before configuring OSPF TE, you need to enable the opaque capability of OSPF. In
addition, for TE LSAs to be generated, at least one neighbor must be in full state.
Follow these steps to configure OSPF TE:
n
For more information about OSPF opaque LSA, refer to “OSPF Configuration” on
page 917 .
Configuring CSPF
Follow these steps to configure CSPF:
Configuring IS-IS TE
Configure IS-IS TE if the routing protocol is IS-IS and a dynamic signaling protocol
is used for MPLS TE tunnel setup. In case both OSPF TE and IS-IS TE are available,
OSPF TE takes priority.
The IS-IS TE extension uses the sub-TLV of IS reachability TLV (type 22) to carry TE
attributes. Before configuring IS-IS TE, you need to configure the IS-IS wide metric
style, which can be wide, compatible, or wide-compatible.
Follow these steps to configure IS-IS TE:
To do... Use command to... Remarks
Enter system view system-view --
Enter OSPF view ospf [ process-id ] --
Enable the opaque LSA
capability opaque-capability enable Required
Disabled by default
Enter OSPF area view area area-id Required
Enable MPLS TE in the OSPF
area mpls-te enable Required
Disabled by default
Exit to OSPF view quit --
To do... Use command to... Remarks
Enter system view system-view -
Enter MPLS view mpls -
Enable CSPF on your device mpls te cspf Required
Disabled by default
To do... Use command to... Remarks
Enter system view system-view --
Enter IS-IS view isis [ process-id ] --
Configure the wide
metric attribute of IS-IS cost-style { narrow | wide |
wide-compatible | { compatible |
narrow-compatible }
[ relax-spf-limit ] }
Required
By default, IS-IS uses narrow
metric style.
Enable IS-IS TE traffic-eng [ level-1 | level-2 |
level-1-2 ]
Required
Disabled by default