Cisco CISCO876-SEC-I-K9 Configuration Guide - Page 143

ping atm interface Command, show interface Command, Example 14-1, Determining If a PVC Is in Use

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Chapter 14 Troubleshooting ATM Troubleshooting Commands ping atm interface Command Use the ping atm interface command to determine whether a particular PVC is in use. The PVC does not need to be configured on the router to use this command. Example 14-1 shows the use of this command to determine whether PVC 8/35 is in use. Example 14-1 Determining If a PVC Is in Use Router# ping atm interface atm 0 8 35 seg-loopback Type escape sequence to abort. Sending 5, 53-byte segment OAM echoes, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 148/148/148 ms This command sends five OAM F5 loopback packets to the DSLAM (segment OAM packets). If the PVC is configured at the DSLAM, the ping is successful. To test whether the PVC is being used at the aggregator, enter the following command: Router# ping atm interface atm 0 8 35 end-loopback Type escape sequence to abort. Sending 5, 53-byte end-to-end OAM echoes, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 400/401/404 ms This command sends end-to-end OAM F5 packets, which are echoed back by the aggregator. show interface Command Use the show interface command to display the status of all physical ports (Ethernet and ATM) and logical interfaces on the router. Table 14-1 describes messages in the command output. Example 14-2 Viewing Status of Selected Interfaces Router# show interface atm 0 ATM0 is up, line protocol is up Hardware is PQUICC_SAR (with Alcatel ADSL Module) Internet address is 14.0.0.16/8 MTU 1500 bytes, sub MTU 1500, BW 640 Kbit, DLY 80 usec, reliability 40/255, txload 1/255, rxload 1/255 Encapsulation ATM, loopback not set Keepalive not supported Encapsulation(s):AAL5, PVC mode 10 maximum active VCs, 1 current VCCs VC idle disconnect time:300 seconds Last input 01:16:31, output 01:16:31, output hang never Last clearing of "show interface" counters never Input queue:0/75/0 (size/max/drops); Total output drops:0 Queueing strategy:Per VC Queueing 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 512 packets input, 59780 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 1024 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort OL-5332-01 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 14-3

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14-3
Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide
OL-5332-01
Chapter 14
Troubleshooting
ATM Troubleshooting Commands
ping atm interface Command
Use the
ping atm interface
command to determine whether a particular PVC is in use. The PVC does
not need to be configured on the router to use this command.
Example 14-1
shows the use of this
command to determine whether PVC 8/35 is in use.
Example 14-1
Determining If a PVC Is in Use
Router#
ping atm interface atm 0 8 35 seg-loopback
Type escape sequence to abort.
Sending 5, 53-byte segment OAM echoes, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 148/148/148 ms
This command sends five OAM F5 loopback packets to the DSLAM (segment OAM packets). If the
PVC is configured at the DSLAM, the ping is successful.
To test whether the PVC is being used at the aggregator, enter the following command:
Router#
ping atm interface atm 0 8 35 end-loopback
Type escape sequence to abort.
Sending 5, 53-byte end-to-end OAM echoes, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 400/401/404 ms
This command sends end-to-end OAM F5 packets, which are echoed back by the aggregator.
show interface Command
Use the
show interface
command to display the status of all physical ports (Ethernet and ATM) and
logical interfaces on the router.
Table 14-1
describes messages in the command output.
Example 14-2
Viewing Status of Selected Interfaces
Router#
show interface atm 0
ATM0 is up, line protocol is up
Hardware is PQUICC_SAR (with Alcatel ADSL Module)
Internet address is 14.0.0.16/8
MTU 1500 bytes, sub MTU 1500, BW 640 Kbit, DLY 80 usec,
reliability 40/255, txload 1/255, rxload 1/255
Encapsulation ATM, loopback not set
Keepalive not supported
Encapsulation(s):AAL5, PVC mode
10 maximum active VCs, 1 current VCCs
VC idle disconnect time:300 seconds
Last input 01:16:31, output 01:16:31, output hang never
Last clearing of "show interface" counters never
Input queue:0/75/0 (size/max/drops); Total output drops:0
Queueing strategy:Per VC Queueing
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
512 packets input, 59780 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 1024 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort