# CSCF Subdomain-route List Configuration Mode Commands

The CSCF Subdomain-route List Configuration Mode is used to configure the subdomain-routes for the I-CSCF. These subdomain-routes are used to send messages over the Ma-interface (I-CSCF interface toward AS).

IMPORTANT:

The commands or keywords/variables that are available are dependent on platform type, product version, and installed license(s).
after

Places the subdomain-route at the bottom or end of the subdomain-routes list. Use this command in conjunction with the route command.
Platform:

ASR 5000
Product:

SCM (I-CSCF)
Privilege:

Administrator
Syntax

    after

Usage:

Add this command before the route command to place the route at the end of the subdomain-routes list.
before

Places the subdomain-route at the beginning or top of the subdomain-routes list. Use this command in conjunction with the route command.
Platform:

ASR 5000
Product:

SCM (I-CSCF)
Privilege:

Administrator
Syntax

    before

Usage:

Add this command before the route command to place the route at the beginning of the subdomain-routes list.
end

Exits the current mode and returns to the Exec Mode.
Product:

All
Privilege:

Administrator
Syntax

    end

Usage:

Change the mode back to the Exec mode.
exit

Exits the current mode and returns to the previous mode.
Product:

All
Privilege:

Administrator
Syntax

    exit

Usage:

Return to the previous mode.
route

Creates a route entry to be used in the subdomain-routes list for the I-CSCF.
Platform:

ASR 5000
Product:

SCM (I-CSCF)
Privilege:

Administrator
Syntax

    [ no ] route
    peer-servers name [ log ] base-criteria destination
    aor aor

no

Removes specified route entry.
peer-servers name

Specifies the name of a peer server group.

name must be an existing peer server group from 1 to 79 alpha and/or numeric characters in length.
log

Enables logging for CSCF sessions meeting the criteria specified. The logs can be viewed by executing the logging filter active facility cscf command in the Exec mode.
base-criteria destination aor aor

Filters routes based on the destination AoR.

aor must be an existing AoR from 1 to 79 alpha and/or numeric characters in length.

IMPORTANT:

AoR regular expressions are supported. Refer to the SCM Engineering Rules Appendix in the Session Control Manager Administration Guide for more information about regular expressions.
Usage:

Use this command to create and order routes in the subdomain-routes list for the I-CSCF. I-CSCF, upon receiving the terminating request, checks the subdomain-route list for matches. If a match is found, the routing will happen based on it. Otherwise, I-CSCF performs a User Location Query (Location-Information-Request) before proceeding.
Example:
The following command creates a route for the subdomain-routes list to peer server group ps5 with a destination AoR of $.@abc123.com:

    route peer-servers ps5
     base-criteria destination aor  $.@abc123.com