Cisco 520-T1 - Small Business Pro SR Secure Router Software Configuration Manual page 114

ATM Troubleshooting Commands
Table 12-1
Table 12-1
Output
For ATM Interfaces
ATM 0 is up, line protocol is up
ATM 0 is down, line protocol is down
ATM 0.n is up, line protocol is up
ATM 0.n is administratively down, line protocol
is down
ATM 0.n is down, line protocol is down
For Fast Ethernet Interfaces
Fast Ethernet n is up, line protocol is up
Fast Ethernet n is up, line protocol is down
Fast Ethernet n is administratively down, line
protocol is down
For Dialer Interfaces
Dialer n is up, line protocol is up
Dialer n is down, line protocol is down
Cisco Secure Router 520 Series Software Configuration Guide
12-4
describes possible command output for the show interface command.
show interface Command Output Description
Cause
The ATM line is up and operating correctly.
• The ATM interface has been disabled with the
shutdown command.
or
The ATM line is down, possibly because the
•
ADSL cable is disconnected or because the
wrong type of cable is connected to the ATM
port.
The specified ATM subinterface is up and operating
correctly.
The specified ATM subinterface has been disabled
with the shutdown command.
The specified ATM subinterface is down, possibly
because the ATM line has been disconnected (by the
service provider).
The specified Fast Ethernet interface is connected to
the network and operating correctly.
The specified Fast Ethernet interface has been
correctly configured and enabled, but the Ethernet
cable might be disconnected from the LAN.
The specified Fast Ethernet interface has been
disabled with the shutdown command, and the
interface is disconnected.
The specified dialer interface is up and operating
correctly.
This is a standard message and may not indicate
•
anything is actually wrong with the
configuration.
or
If you are having problems with the specified
•
dialer interface, this can mean it is not
operating, possibly because the interface has
been brought down with the shutdown
command, or the ADSL cable is disconnected.
Chapter 12 Troubleshooting
OL-14210-01