Инструкции По Установке для 3com S7906E
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Configuring MPLS TE Tunnel with Dynamic Signaling Protocol
Dynamic signaling protocol can adapt the path of a TE tunnel to network changes and implement
redundancy, FRR, and other advanced features.
redundancy, FRR, and other advanced features.
The following describes how to create an MPLS TE tunnel with a dynamic signaling protocol:
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Configure MPLS TE properties for links and advertise them through IGP TE extension to form a
TEDB.
TEDB.
z
Configure tunnel constraints.
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Use the CSPF algorithm to calculate a preferred path based on the TEDB and tunnel constraints.
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Establish the path by using the signaling protocol RSVP-TE or CR-LDP.
To form a TEDB, you must configure the IGP TE extension for the nodes on the network to send TE
LSAs. If the IGP TE extension is not configured, the CR-LSP is created based on IGP routing rather
than computed by CSPF.
LSAs. If the IGP TE extension is not configured, the CR-LSP is created based on IGP routing rather
than computed by CSPF.
Configuration Prerequisites
Before making the configuration, do the following:
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Configure static routing or an IGP protocol to make sure that all LSRs are reachable.
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Configure MPLS basic capabilities.
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Configure MPLS TE basic capabilities.
Configuration Procedure
Complete the following tasks to configure an MPLS TE tunnel using a dynamic signaling protocol:
Task
Remarks
Optional
Required when CSPF is configured
Choose one depending on the IGP protocol
used.
Choose one depending on the IGP protocol
used.
Optional
Optional
Optional
By default, RSVP-TE is used for establishing an
MPLS TE tunnel.
By default, RSVP-TE is used for establishing an
MPLS TE tunnel.
Configuring CSPF
Follow these steps to configure CSPF: