Troubleshooting guide

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ATM and Layer 3 Switch Router Troubleshooting Guide
OL-1969-01
Chapter 10 Troubleshooting Ethernet, ATM Uplink, and POS Uplink Interfaces
Troubleshooting ATM Uplink with Enhanced Gigabit Ethernet Interface Modules
Follow these steps to troubleshoot the counters of the Gigabit Ethernet interface module physical
interface:
Step 1 Use the show controllers c8500 counters command to check the Gigabit Ethernet interface module
counters.
Switch# show controllers c8500 counters
Interface Input Runts Giants Input CRC Frame Output Output
State Packets Errors Packets Errors
-----------------------------------------------------------------------------
G0/1/0 U 0 0 0 0 0 0 136972 0
G0/1/1 U 0 0 0 0 0 0 20 0
P1/0/0 AD 0 19600630 2271017 3 0 0 0
P2/0/0 AD 0 2 0 139 2 0 0 0
G2/0/1 AD 1 0 0 0 0 0 1 0
A3/0/0 AD 0 0 0 0 0 0 0 0
G3/0/1 AD 1 0 0 0 0 0 1 0
F9/0/0 U 14364 0 0 0 0 0 14367 0
F9/0/1 AD 1 0 0 0 0 0 1 0
F9/0/2 AD 1 0 0 0 0 0 1 0
F9/0/3 AD 1 0 0 0 0 0 1 0
F9/0/4 AD 1 0 0 0 0 0 1 0
F9/0/5 AD 1 0 0 0
.
(Information Deleted)
.
A12/0/0 AD 0 0 0 0 0 0 0 0
G12/0/1 AD 1 0 0 0 0 0 1 0
-----------------------------------------------------------------------------
AD - Admin Down, D - Down, F - Fail, U - Up
Switch#
Step 2 Check the Interface State field. It should indicate the interfaces are up.
Step 3 Check the Input Packets and Output Packets fields. The show controllers c8500 counters command
should be entered at least twice. The counters in the Input Packets and Output Packets fields should be
incrementing. This information can also be displayed using the show interfaces command.
Note The clear counters command does not clear the show controllers c8500 counters command display.
If you determine that the interface is configured incorrectly, refer to the “Configuring Interfaces” chapter
in the Layer 3 Switching Software Feature and Configuration Guide.
Troubleshooting ATM Uplink with Enhanced Gigabit Ethernet
Interface Modules
The ATM Uplink interface module has one ATM uplink port and one Enhanced Gigabit Ethernet port,
and is designed specifically for large-enterprise and service-provider networks.
Up to eight of the ATM Uplink with Enhanced Gigabit Ethernet Modules may be installed in a Catalyst
8540 chassis, providing eight ATM uplink ports and eight ports of nonblocking, wire-speed Gigabit
Ethernet capacity in the core of an Enterprise network.