3Com S7902E, Configuration Manual

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To do… Use the command... Remarks
Enter system view
system-view
—
Enter MPLS view
mpls
—
Enable CSPF on your device
mpls te cspf
Required
Disabled by default
Configuring OSPF TE
Configure OSPF TE if the routing protocol is OSPF and a dynamic signaling protocol is used for MPLS
TE tunnel setup.
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:
To do… Use the command... 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
––
z
For more information about OSPF opaque LSA, refer to
OSPF Configuration
in the
IP routing
volume
.
z
MPLS TE cannot reserve resources and distribute labels on OSPF virtual links, that is, MPLS TE
cannot establish an LSP tunnel through an OSPF virtual link. Therefore, make sure there is no
virtual links in the OSPF routing domain when configuring OSPF TE.
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.