R3102-R3103-HP 6600/HSR6600 Routers Interface Configuration Guide

22
Ste
p
Command Remarks
7. Set the loopback mode.
loopback { cell | local | remote }
Optional.
Loopback is disabled by default.
8. Set the intended bandwidth
for the ATM OC-3c/STM-1
interface.
bandwidth bandwidth-value Optional.
9. Restore the default settings for
the ATM OC-3c/STM-1
interface.
default Optional.
Displaying and maintaining ATM interfaces
Task Command Remarks
Display information about a
specified or all ATM interfaces.
display interface [ atm ] [ brief [ down ] ] [ | { begin
| exclude | include } regular-expression ]
display interface atm interface-number [ brief ] [ |
{ begin | exclude | include } regular-expression ]
Available in any
view.
Clear the statistics on all PVCs on a
specified ATM interface.
reset atm interface [ atm [ interface-number ] ]
Available in user
view.
Clear the statistics on an ATM
interface.
reset counters interface [ atm [ interface-number ] ]
Available in user
view.
NOTE:
For those physical interfaces that are not connected to cables, shut down them using the shutdown
command to avoid anomalies resulted from interference.
Troubleshooting ATM interfaces
When diagnosing ATM interface problems, first test the interface with the ping command or the
extended ping command.
The ping command can test network connectivity. Extended ping command can be used to specify some
options in the IP header in addition to that function. For more information about the ping command, see
Network Management and Monitoring Configuration Guide.
If the interface cannot be pinged, check whether:
• The interface is down, which causes missing of its route in the routing table.
• The AAL5 encapsulation of the PVC is incorrect (for 155 Mbps ATM interfaces only).