Chapter 2 Configuring Integrated Session Border Controller

Configuration Examples

The following example shows the initial SBC configuration:

sbc mySbc dbe

vdbe global use-any-local-port

control-address h248 ipv4 172.25.2.26 controller h248 1

remote-address ipv4 172.25.2.243 remote-port 2946

transport udp attach-controllers

activate location-id 1

media-address ipv4 20.20.20.20 media-address ipv4 21.21.21.21

The following example illustrates a user trying to change the local port number while the controllers are configured and receiving an error message:

Router# configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

Router(config)# sbc mySbc dbe

Router(config-sbc-dbe)# vdbe

Router(config-sbc-dbe-vdbe)# local-port 2946

SBC: local-port cannot be changed while controllers are configured.

The following example illustrates the user following the recommended steps to change the local port:

Router(config-sbc-dbe-vdbe)#

exit

 

Router(config-sbc-dbe)# no activate

 

Router(config-sbc-dbe)# vdbe

 

 

Router(config-sbc-dbe-vdbe)#

no attach-controllers

Router(config-sbc-dbe-vdbe)#

no controller h248 1

Router(config-sbc-dbe-vdbe)#

local-port 2946

<== Make change to local port

Router(config-sbc-dbe-vdbe)#

controller h248

1

Router(config-sbc-dbe-vdbe-h248)#

remote-address ipv4 172.25.2.243 <== Reconfigure

Router(config-sbc-dbe-vdbe-h248)#

remote-port 2946

<== Reconfigure

Router(config-sbc-dbe-vdbe-h248)#

transport udp

<== Reconfigure

Router(config-sbc-dbe-vdbe-h248)# exit

 

Router(config-sbc-dbe-vdbe)# attach-controllers

<== Re-attach controller

Router(config-sbc-dbe-vdbe)# exit

 

 

Router(config-sbc-dbe)# activate

 

<== Reactivate the DBE

Router(config-sbc-dbe)# end

 

 

The following example shows the modified running SBC configuration:

sbc mySbc dbe

vdbe global local-port 2946

control-address h248 ipv4 172.25.2.26 controller h248 1

remote-address ipv4 172.25.2.243 remote-port 2946

transport udp attach-controllers

activate location-id 1

media-address ipv4 20.20.20.20 media-address ipv4 21.21.21.21

 

 

 

Cisco IOS XE Integrated Session Border Controller Configuration Guide for the Cisco ASR 1000 Series Aggregation Services Routers

 

 

 

 

2-12

 

OL-15421-01

 

 

 

 

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Image 36
Cisco Systems ASR 1000 manual Following example shows the initial SBC configuration, == Make change to local port