Specifications

53
Channelized and Electrical Interface Line Card Installation and Configuration
78-16417-02
Configuring and Troubleshooting Line Card Interfaces
Configuring the T3 Controller to Respond to Remote T3 Loopback Commands
This section explains how to use the equipment [customer|network] loopback controller
configuration command.
To enable the 6-port channelized T3 (T1) line card to respond to remote T3 loopback commands from
the remote T3 equipment, use the equipment customer loopback command.
Router(config-controller)# equipment customer loopback
Router(config-controller)#
or
To enable the 6-port channelized T3 (T1) line card to ignore remote T3 loopback commands, use the
equipment network loopback command.
Router(config-controller)# equipment network loopback
Router(config-controller)#
Note Remote loopbacks are only available when you use c-bit parity framing.
Configuring the 6-Port and 12-Port DS3 Line Card Controller
This section provides basic information to configure an interface and to specify IP routing. You can also
enter other configuration commands and options, depending on the requirements of your system. To
configure the 6-port and 12-port DS3 line card interfaces, you must identify the router slot where the
line card is installed (for example, slot 7). Use the show diag EXEC command to verify that the system
recognizes the line card.
Router# show diag 2
SLOT 2 (RP/LC 2 ):6 Port Packet over DS3
Router#
(Remainder of displayed text omitted from example.)
If you know that there is more than one 6-port or 12-port DS3 line card installed in the router, use the
show diag summary EXEC command to see the types of line cards that are installed in all of the router
slots. The following output shows a 6-port DS3 line card in slot 2 and a 12-port DS3 line card in slot 6.
Router# show diag summ
SLOT 0 (RP/LC 0 ):1 Port Packet Over SONET OC-12c/STM-4c Single Mode
SLOT 1 (RP/LC 1 ):1 port SONET OC12 channelized to DS3 Single Mode
SLOT 2 (RP/LC 2 ):6 Port Packet over DS3 <<<<<----see DS3 line card
SLOT 4 (RP/LC 4 ):4 Port Packet Over SONET OC-3c/STM-1 Single Mode
SLOT 6 (RP/LC 6 ):12 Port Packet over DS3 <<<<<----see DS3 line card
Router#
If you want to address a specifc 6-port or 12-port DS3 line card interface, refer to interface slot 2 or
interface slot 6, as shown in the previous output example.
If you want to address a specifc port on the 6-port or 12-port DS3 line card, refer to the router slot
number and one of the serial interface port numbers.
Based on the previous output example:
• To address the 6-port DS3 line card, which has six ports, in slot 2, the valid port numbers are 0
through 5, inclusive. The serial interface slot/port configuration format range is 2/0 through 2/5.