5-4
Cisco 6260 Hardware Installation Guide
OL-2365-01
Chapter 5 Troubleshooting
System-Wide Problems
You cannot establish a
console or Telnet
connection to the system.
1.
For a console problem, check the terminal settings against the list of settings in the
“Connect
a Console Terminal” section on page 3-21
or the
“Connect a Console Terminal” section on
page 4-20
.
2.
For a Telnet problem:
–
If you are connecting to the Cisco 6260 through the Ethernet interface, check the
configuration of your LAN for both the Cisco 6260 and the Telnet source.
–
If you are connecting to the Cisco 6260 through an ATM interface, make sure that PVCs
are set up between the two devices and that the map-list is correctly configured. Enter
the command
show running-config
to display this information.
–
If the Telnet source and the Cisco 6260 are on different networks, make sure static
routes are configured at both ends so that the two devices can communicate. To check,
use the
ping
command to ping each device from the other (that is, ping the Cisco 6260
from the Telnet source, and ping the Telnet source from the Cisco 6260). Alternatively,
ping your default gateways from each end of the connection.
3.
For both console and Telnet problems:
–
Check the cabling and connectors between the terminal or Telnet source and the
Cisco 6260. See
Appendix C, “Connector and Pinout Specifications,”
to check pinouts.
–
Press the
Reset
button on the NI-2 card faceplate to reset the card.
–
If the problem persists, replace the NI-2 card.
System experiences a
critical, major, or
minor alarm.
1.
Enter the command
show facility-alarm status
. Note the affected slot and port, if any, and
the description of the problem.
2.
If no slot number is indicated, enter
show environment all
and examine the results for an
indication of which FRU is at fault. Refer to the
“FRU-Specific Problems” section on
page 5-8
for instructions on troubleshooting that FRU.
3.
If ATM0/0, ATM0/1, ATM0/2, or ATM0/3 is indicated:
–
Enter a
show int
command for the interface (for example,
show int atm0/1
). Results
may indicate a SONET problem (Loss of Signal, for example). Refer to the
“NI-2 Card
Problems” section on page 5-8
for instructions on troubleshooting the NI-2 card.
–
Enter
show controllers
commands for all trunk and subtending ports. (The ports are
atm0/1, atm0/2, and, in a DS3 system, atm0/3.) For example,
show controllers atm0/1
.
In the resulting display, check that the framing mode is set to the same value on this
interface as at the other end of the connection. Also check that cell payload scrambling
is on (on E3 interfaces only).
4.
If a line card slot is indicated, consult the
“NI-2 Card Redundancy Problems” section on
page 5-9
.
Table 5-2
System-Wide Problems (continued)
Symptom
Steps to Take