Cisco Cisco IOS Software Release 12.1(1a)T1 Manuel Technique

    cable Telco−Return spd 1 ppp−authenticate pap 

    cable Telco−Return spd 1 phonenum 2489888 

    cable Telco−Return spd 1 username test 

    cable Telco−Return spd 1 password test 

   ! 

For a complete configuration of Telco−Return and explanation of the commands used in the preceding
example, refer to Telco−Return for the Cisco uBR7200 Series Universal Broadband Router.

The next example is the show cable qos profile and the show cable modem output with respect to the
working configuration. The output shows an example of a mixed Telco−Return and two−way environments in
the same CMTS. Notice that all the cable modems shown here are in the same cable interface (Cable2/0).

Note: The modems that have a T are for Telco−Return and those with a U0 are for two−way modems using
upstream port 0. Both modes are on the same MC16C card interface Cable2/0.

ubr7223#show cable modem

Interface   Prim Online    Timing     Rec       QoS    CPE IP address      MAC address 

            Sid   State    Offset     Power    

Cable2/0/T  94   online     0          0.00     3      2   10.10.169.151     0020.4066.b6b0 

Cable2/0/T  95   online     0          0.00     3      1   10.10.168.18      0020.4061.db5e 

Cable2/0/T  98   online     0          0.00     3      1   10.10.169.245     0020.4003.65fe 

Cable2/0/U0 99   online    332         0.25     4      0   10.10.168.110     0020.400b.9b40    

Cable2/0/U0 100  online    277         0.25     4      1   10.10.169.114     0020.4002.ff42 

Cable2/0/T  101  online     0          0.00     3      1   10.10.169.175     0020.4066.b6c8 

Cable2/0/U0 102  online    272         0.25     4      1   10.10.168.115     0020.400b.9b84 

Cable2/0/T  103  online     0          0.00     3      1   10.10.168.204     0020.4003.6788 

Cable2/0/T  104  online     0          0.00     3      1   10.10.168.66      0020.400b.9af6 

Cable2/0/T  105  online     0          0.00     3      1   10.10.169.107     0020.4065.d75e 

Cable2/0/T  106  online     0          0.00     3      2   10.10.168.193     0020.4065.9148 

Cable2/0/T  107  online     0          0.00     3      2   10.10.168.96      0020.4066.d2b0 

Cable2/0/T  108  online     0          0.00     3      1   10.10.169.118     0020.4003.7110 

Cable2/0/T  109  online     0          0.00     3      1   10.10.168.202     0020.4003.6b22 

Cable2/0/U0 111  online    227         0.25     4      1   10.10.169.117     0020.4002.fd0e 

Cable2/0/T  112  online     0          0.00     3      0   10.10.169.127     0020.4062.1ba0 

Cable2/0/T  113  online     0          0.00     3      1   10.10.169.109     0020.400b.9a22 

Cable2/0/T  114  online     0          0.00     3      1   10.10.168.229     0020.4061.65ee 

Cable2/0/T  115  online     0          0.00     3      1   10.10.169.173     0020.4002.ffb4 

Cable2/0/T  116  online     0          0.00     3      1   10.10.169.38      0020.407e.a54c 

Cable2/0/T  117  online     0          0.00     3      1   10.10.168.77      0020.4084.1780 

An interesting point to note is that both modes (Telco−Return and two−way) are using different DOCSIS
configuration files, as seen in the output show cable qos profile in comparison to the show cable modem
command. All online Telco−Return modems are using QoS #3 and two−way are using QoS #4.

In this example, there are two DOCSIS configuration files. One file uses Telco−Return with QoS #3, the other
file uses two−way with QoS #4.

ubr7223#show cable qos profile

Service Prio   Max         Guarantee   Max         Max tx     TOS   TOS    Create     B 

class          upstream    upstream    downstream  burst      mask  value  by         priv 

               bandwidth   bandwidth   bandwidth                                      enab 

1       0      0           0           0           0           0x0  0x0    cmts(r)    no 

2       0      64000       0           1000000     0           0x0  0x0    cmts(r)    no 

4       7      32000       0           265000      0           0x0  0x0    cm         no