Cisco Cisco IOS Software Release 12.0(14)S

An IP explicit path is a list of IP addresses, each representing a node or link in the explicit path. To 
exclude an address from an IP explicit path, use the exclude-address command after entering explicit 
path configuration mode via the ip-explicit path command. To remove an address exclusion from an IP 
explicit path use the no index command.

exclude-address A.B.C.D

no index number

Addresses are not excluded from an IP explicit path unless explicitly excluded by the exclude-address 
command.

Subcommand

If you enter the exclude-address command and specify the IP address of a link, the constraint-based SPF 
routine does not consider that link when it sets up MPLS traffic engineering paths. If the excluded 
address is a flooded MPLS traffic engineering router ID, the constraint-based SPF routine does not 
consider that entire node. The person performing the configuration must know the router IDs of the 
routers because it will not be apparent whether the specified number is for a link or for a node.

MPLS traffic engineering will accept an IP explicit path comprised of either all 
exclude-addresses configured by the exclude-address command or all include-addresses 
configured by the next-address, but not a combination of both. 

The following example shows how to create a IP explicit path with identifier 500 and enter the explicit 
path subcommand mode to configure the path:

Router(config)# ip explicit-path identifier 500

Router(config-ip-expl-path)#

A.B.C.D.

Excludes an address from subsequent partial path segments. You can enter 
the IP address of a link or the router ID of a node.

Removes the specified address exclusion from an IP explicit path.

12.0(14)S

This command was introduced.