Practical Exercise Solution

Example 4-33 displays uBR7246's working configuration.

Example 4-33. uBR7246 Configuration

uBR7246#show running-config
version 12.1
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
service internal
service udp-small-servers max-servers no-limit
service tcp-small-servers max-servers no-limit
!
hostname uBR7246
!
no logging buffered
enable password cisco
!
cable flap-list size 1000
cable flap-list aging 86400
cable spectrum-group 30 frequency 29000000
cable spectrum-group 30 frequency 33000000
cable spectrum-group 30 frequency 39000000
clock timezone PST -8
clock summer-time PDT recurring
ip subnet-zero
ip cef
!
interface FastEthernet0/0
 ip address 172.16.1.1 255.255.255.0
 full-duplex
!
interface Cable3/0
 description Connected to Wavecomm Upconverter at 459000000
 ip address 10.10.10.1 255.255.255.0
cable downstream annex B
 cable downstream modulation 256qam
 cable downstream interleave-depth 32
 cable downstream frequency 459000000
 cable upstream 0 spectrum-group 30
 cable upstream 0 power-level 0
 cable upstream 0 channel-width 3200000
 no cable upstream 0 shutdown
 cable upstream 1 shutdown
 cable upstream 2 shutdown
 cable upstream 3 shutdown
 cable upstream 4 shutdown
 cable upstream 5 shutdown
 cable dhcp-giaddr policy
 cable helper-address 172.16.1.2
!
ip classless
!
line con 0
line aux 0
line vty 0 4
!
end

Example 4-34 shows typical Cisco IOS configurations for a Cisco cable access router that is operating in plug-and-play DOCSIS-compliant bridging mode.

Example 4-34. uBR925 DOCSIS-Compliant Bridging Configuration

uBR925#show running-config
version 12.1
no service pad
service timestamps debug datetime msec localtime
service timestamps log uptime
no service password-encryption
!
hostname uBR925
!
enable password cisco
!
!
!
clock timezone - -8
ip subnet-zero
no ip routing
!
interface Ethernet0
 no ip address
 bridge-group 59
 bridge-group 59 spanning-disabled
!
interface cable-modem0
 ip address docsis
 cable-modem boot admin 2
 cable-modem boot oper 5
 bridge-group 59
 bridge-group 59 spanning-disabled
!
ip classless
!
line con 0
line vty 0 4
!
end

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