Troubleshooting guide

10-15
ATM and Layer 3 Switch Router Troubleshooting Guide
OL-1969-01
Chapter 10 Troubleshooting Ethernet, ATM Uplink, and POS Uplink Interfaces
Troubleshooting Gigabit Ethernet Interface Modules
This section includes the following:
• Ethernet and Gigabit Ethernet Processor Differences, page 10-15
• Eight-Port Gigabit Ethernet Interface Modules, page 10-19
• Two-Port Gigabit Ethernet Interface Modules, page 10-20
• Troubleshooting Two-Port Enhanced Gigabit Ethernet Interface Modules, page 10-26
• Displaying Enhanced Gigabit Ethernet Interface Module Configurations, page 10-28
Ethernet and Gigabit Ethernet Processor Differences
The switch router uses two different Gigabit Ethernet interface-modules hardware types.
The two- and eight-port Gigabit Ethernet interface modules use the Ethernet processor interface (EPIF)
that has an internal binary CAM search engine built into the processor.
The enhanced Gigabit Ethernet interface module uses the Gigabit processor interface (XPIF) that has a
faster external search engine using a Cisco Systems proprietary FPGA and Ternary CAM (TCAM) for
the Layer 3 routing and Layer 2 switching functionality.
The two-port and eight-port Gigabit Ethernet interface modules are full-width modules. The Ethernet
interface processors support 1000-Mbps Layer 2 or Layer 3 fiber-optic connections. They provide
Gigabit Ethernet ports that have Gigabit Interface Converter (GBIC) modular transceivers and SC-type
fiber connectors. The two-port Gigabit Ethernet interface module is available with 16K or 64K of
memory. The eight-port Gigabit Ethernet interface module is available with 16K of routing table
memory.
The two-port enhanced Gigabit Ethernet interface module with Gigabit interface processors supports
1000-Mbps multimode and single-mode Layer 2 and Layer 3 fiber-optic connections. It consists of two
one-port Gigabit Ethernet port adapters attached to a carrier module. The port adapters are not
hot-swappable, but the complete interface module is hot-swappable. The port adapters have GBIC
modular transceivers and SC-type fiber connectors. The interface module is full-duplex, supports Fast
EtherChannel operation, and provides built-in ACL functionality. It is available with 16K, 64K, or 256K
of routing table memory.
The troubleshooting procedures are slightly different for the Ethernet processor interface and Gigabit
processor interface modules. You need to determine which type of Gigabit interface module you are
troubleshooting.
To display the Gigabit Ethernet interface and enhanced Gigabit Ethernet interface modules installed in
your switch router, use the following commands:
Command Purpose
show hardware [detail] Shows physical interfaces and their type.
show interfaces gigabitEthernet
card/subcard/port
Shows the status of the physical
interfaces and the type.