28 Channelized T1 Port Adapter Installation and Configuration
VIP2 and the 2CT1 Port Adapter
Checking the Configuration
After configuring the new interface, use the show commands to display the status of the new
interface or all interfaces, and use the ping and loopback commands to check connectivity.
Using show Commands to Verify the VIP2 Status
The following steps use show commands to verify that the new interfaces are configured and
operating correctly:
Step 1
Display the system hardware configuration with the show version command. Ensure that
the list includes the new serial interfaces.
Step 2
Display all the current interface processors and their interfaces with the
show controllers cbus command. Verify that the new VIP2 appears in the correct slot.
Step 3
Specify one of the new T1 interfaces with the show interfaces type slot/port
adapter/interface:channel-group or pri-group command and verify that the first line of
the display specifies the interface with the correct slot number. Also verify that the
interface and line protocol are in the correct state: up or down.
Step 4
Display the protocols configured for the entire system and specific interfaces with the
show protocols command. If necessary, return to configuration mode to add or remove
protocol routing on the system or specific interfaces.
Step 5
Display the running configuration file with the show running-config command. Display
the configuration stored in NVRAM using the show startup-config command. Verify
that the configuration is accurate for the system and each interface.
If the interface is down and you configured it as up, or if the displays indicate that the hardware is
not functioning properly, ensure that the network interface is properly connected and terminated. If
you still have problems bringing up the interface, contact a customer service representative for
assistance.
To display information about a specific interface, use the show interfaces command with the
interface type, port adapter, interface, and channel group or PRI group address in the format show
interfaces [type slot/port adapter/interface:channel-group or pri-group].
The following example of the show interfaces serial slot/port adapter/port/channel-group
command shows all of the information specific to the second 2CT1 interface port (interface port 1)
in chassis slot 3, port adapter slot 1, channel group 0:
Router# show interface serial 3/1/1:0
Serial3/1/1:0 is up, line protocol is up
Hardware is cxBus T1
Internet address is 10.1.15.1
MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation HDLC, loopback not set, keepalive set (10 sec)
Last input never, output never, output hang never
Last clearing of “show interface” counters never
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 0 drops
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions alarm present
Timeslot(s) Used:1-24, Transmitter delay is 0 flags, transmit queue length 0
