Troubleshooting guide

Contents
ix
ATM and Layer 3 Switch Router Troubleshooting Guide
OL-1969-01
Checking CES Circuit Configuration 9-5
Troubleshooting CES Using debug Commands 9-7
Troubleshooting Network Clocking 9-7
Overview of Network Clocking 9-7
Network Clock Module LEDs 9-8
Checking the Network Clock Source Configuration 9-9
Checking the CES Interface Clocking Configuration 9-12
CHAPTER 10 Troubleshooting Ethernet, ATM Uplink, and POS Uplink Interfaces 10-1
Troubleshooting General Ethernet Interface Problems 10-1
Troubleshooting Switch Card Failures 10-1
Troubleshooting Port Stuck Problems 10-4
Configuring Automatic Port Stuck Failure Recovery 10-6
Connectivity Troubleshooting Commands 10-8
Troubleshooting 10/100 Ethernet Interface Modules 10-8
10/100BASE-T Interface Modules 10-8
10/100BASE-T Interface Module LEDs 10-9
100BASE-FX Interface Modules 10-9
100BASE-FX Interface Module LEDs 10-9
Displaying 10/100BASE-T and 100BASE-FX Interface Module Configurations 10-10
Troubleshooting Gigabit Ethernet Interface Modules 10-14
Ethernet and Gigabit Ethernet Processor Differences 10-15
Eight-Port Gigabit Ethernet Interface Modules 10-19
Eight-Port Gigabit Ethernet Interface Module LEDs 10-20
Two-Port Gigabit Ethernet Interface Modules 10-20
Two-Port Gigabit Ethernet Interface Module LEDs 10-21
Displaying Gigabit Ethernet Interface Module Configurations 10-21
Troubleshooting Two-Port Enhanced Gigabit Ethernet Interface Modules 10-26
Two-Port Enhanced Gigabit Ethernet Interface Module LEDs 10-27
Displaying Enhanced Gigabit Ethernet Interface Module Configurations 10-28
Troubleshooting ATM Uplink with Enhanced Gigabit Ethernet Interface Modules 10-33
ATM Uplink Interface Module LEDs 10-34
Displaying ATM Uplink Interface Module Configurations 10-36
Troubleshooting Packet-over-SONET Uplink with Enhanced Gigabit Ethernet Interface Modules 10-41
Packet-over-SONET Uplink Interface Module LEDs 10-41
Displaying POS Interface Module Configurations 10-42
Troubleshooting ACL Daughter Card 10-46
Packet Flow through ACL Daughter Card 10-47
Displaying ACL Daughter Card Configurations 10-47