Configuring ospf te, Configuring is-is te – H3C Technologies H3C S10500 Series Switches User Manual

Page 112

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101

To do…

Use the command...

Remarks

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 must 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

––

NOTE:

For more information about OSPF opaque LSA, see

Layer 3—IP routing Configuration Guide.

MPLS TE cannot reserve resources and distribute labels on OSPF virtual links. MPLS TE cannot establish
an LSP tunnel through an OSPF virtual link. Make sure no virtual links exist 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. If 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, configure the IS-IS wide metric style, which can be wide, compatible, or

wide-compatible.

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