User manual

Nortel Secure Router 8000 Series
Configuration -WAN Access 2 Serial interface configuration
Issue 5.3 (
30 March 2009) Nortel Networks Inc. 2-9
By default, the length of the CRC check word is 16 bits.
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2.2.10 Checking the configuration
Run the following commands to check the previous configuration.
Action Command
Check the status and statistics of a
serial interface.
display interface serial [ interface-number ]
[ verbose ] [ | { begin | exclude | include }
regular-expression ]
Check the network layer
configuration and statistics of a
serial interface.
display ip interface brief serial interface-number
Run the display interface serial command to view the status and statistics of the interface.
For example:
<Nortel> display ip interface serial 6/0/0
Serial7/0/0 current state : DOWN
Line protocol current state : DOWN
Description : NORTEL, Nortel Series, Serial7/0/0 Interface
The Maximum Transmit Unit is 1500 bytes, Hold timer is 10(sec)
Internet protocol processing : disabled
Link layer protocol is PPP
LCP initial
QoS max-bandwidth : 64 Kbps
Output queue : (Urgent queue : Size/Length/Discards) 0/50/0
Output queue : (Protocol queue : Size/Length/Discards) 0/1000/0
Output queue : (FIFO queue : Size/Length/Discards) 0/256/0
Physical layer is synchronous,Baudrate is 0 bps, Interface is no cable
300 seconds input rate 0.00 bytes/sec, 0.00 packets/sec
300 seconds output rate 0.00 bytes/sec, 0.00 packets/sec
Usage of input bandwidth: 0.00%, Usage of output bandwidth: 0.00%
0 packets input, 0 bytes, 0 no buffers
0 packets output, 0 bytes, 0 no buffers
0 input errors, 0 CRC, 0 frame errors
0 overrunners, 0 aborted sequences, 0 input no buffers
DCD=DOWN DTR=DOWN DSR=DOWN RTS=DOWN CTS=DOWN
Run the display ip interface brief command to view the IP configuration of the interface. For
example:
<Nortel> display ip interface brief serial 6/0/0
*down: administratively down
(l): loopback
(s): spoofing
Interface IP Address Physical Protocol Description
Serial6/0/0 10.1.1.1 UP UP NORTEL