Cisco 7246VXR - uBR Router User Manual

C-13
Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide
OL-2239-03
Appendix C Viewing Sample Configuration Files
no ip address
no ip directed-broadcast
shutdown
!
interface Cable2/0
ip address 20.20.20.20 255.255.255.0
no ip directed-broadcast
no keepalive
cable downstream modulation 64qam
cable upstream 0 frequency 10000000
cable upstream 0 power-level 0
no cable upstream 0 shutdown
cable upstream 1 frequency 10000000
cable upstream 1 power-level 0
no cable upstream 1 shutdown
cable upstream 2 shutdown
cable upstream 3 shutdown
cable upstream 4 shutdown
cable upstream 5 shutdown
!
ip default-gateway 1.11.0.1
ip classless
ip route 0.0.0.0 0.0.0.0 10.20.122.1
ip route 223.255.254.254 255.255.255.255 1.11.0.1
ip http server
!
!
!
!
line con 0
exec-timeout 0 0
transport input none
line aux 0
line vty 0 4
login
line vty 5 11
login
!
end
Clock Support Example
Clock support enables the Cisco uBR7246 VXR router to synchronize to an external timing reference
and distribute clock to Cisco MC16S and MC16E cable interface line cards. The synchronized DOCSIS
time stamps are then passed downstream to all CMs.
Note Clock support is designed for cable networks running VoIP applications where synchronized timing is vital
to maintain voice quality. The clocking feature is supported only on a Cisco
uBR7246 VXR chassis that
contains the clock card and uses Cisco
IOS Release 12.1(1a)T1 or higher. The CM must also support
VoIP and the clock mode.
Tip No configuration tasks are required to use the clock card after it is installed in the Cisco uBR7246
VXR. When the clock card is present, it becomes the midplane TDM clock reference source.
Key commands that appear in the Cisco uBR7246 VXR configuration file that denote clock support
include:

Cisco 7246VXR - uBR Router Specifications

General

Brand	Cisco
Model	7246VXR - uBR Router
Category	Network Router
Language	English