Configuring An Lsp - Cisco CRS Configuration Manual

Implementing MPLS Traffic Engineering

Configuring an LSP

Perform this task to configure an LSP for an explicit path. Path protection is enabled on a tunnel by adding
an additional path option configuration at the active end. The path can be configured either explicitly or
dynamically.
When the dynamic option is used for both working and protecting LSPs, CSPF extensions are used to
Note
determine paths with different degrees of diversity. When the paths are computed, they are used over the
lifetime of the LSPs. The nodes on the path of the LSP determine if the PSR is or is not for a given LSP.
This determination is based on information that is obtained at signaling.
SUMMARY STEPS
1. configure
2. interface tunnel-gte number
3. ipv4 address ipv4-address mask or ipv4 unnumbered type interface-path-id
4. signalled-name name
5. switching transit capability-switching-type encoding encoding-type
6. switching endpoint capability-switching -ype encoding encoding-type
7. priority setup-priority hold-priority
8. signalled-bandwidth {bandwidth [class-type ct] | sub-pool bandwidth}
9. destination ip-address
10. path-option path-id explicit {name pathname |path-number }
11. path-option protecting path-id explicit {name pathname | path-number}
12. Use the commit or end command.
DETAILED STEPS
Command or Action
Step 1
configure
Example:
RP/0/RP0/CPU0:router# configure
Step 2 interface tunnel-gte number
Example:
RP/0/RP0/CPU0:router(config)# interface
tunnel-gte 1
Step 3
ipv4 address ipv4-address mask or ipv4
unnumbered type interface-path-id
Purpose
Enters global configuration mode.
Configures an MPLS-TE tunnel interface for GMPLS interfaces.
Specifies a primary or secondary IPv4 address for an interface.
• Network mask can be a four-part dotted decimal address. For
example, 255.0.0.0 indicates that each bit equal to 1 means
Cisco IOS XR MPLS Configuration Guide for the Cisco CRS Router, Release 5.1.x
Configuring GMPLS
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