Cisco Systems OL-7396-01 Manual De Usuario

To check ATM connection reachability and network connectivity on the Catalyst 8540 MSR, use the 
ping EXEC command, as shown in the following table:

You can ping a neighbor switch by selecting the segment loopback option. In privileged EXEC mode, 
you can select various other parameters such as repeat count and timeout values.

The following example shows the ping command used in normal mode to check a virtual channel 
connection (VCC) with a segment loopback flow:

Switch# ping atm interface atm 3/0/0 50 100 seg-loopback

Type escape sequence to abort.

Sending Seg-Loopback 5, 53-byte OAM Echoes to a neighbor, timeout is 5 seconds:

.....

Success rate is 0 percent (0/5)

The following example shows the ping command used in extended mode to check a VCC with 
end-to-end loopback flow:

Switch# ping

Protocol [ip]: atm

Interface [card/sub-card/port]: 3/0/0

VPI [0]: 0

VCI [0]: 16

Send OAM-Segment-Loopback ? [no]: 

Target IP address:

Target NSAP Prefix:

Repeat count [5]:

Timeout in seconds [5]:

Type escape sequence to abort.

Sending end-Loopback 5, 53-byte OAM Echoes to a connection end point, timeout is

 5 seconds:

.....

Success rate is 0 percent (0/5)

To check ATM connection reachability and network connectivity on the Catalyst 8510 MSR and 
LightStream 1010 ATM switch router, use the ping EXEC command, as shown in the following table:

ping atm interface atm card/subcard/port vpi 
[vci] {end-loopback [destination] | seg-loopback 
[destination]}

Checks the connection.