Cisco Catalyst 4500e Series User Manual

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Catalyst 4500 E-Series Switches Installation Guide
OL-13972-01
Chapter 5 Troubleshooting
Troubleshooting Supervisor Engines
NIC Compatibility Issues
You can have NIC compatibility or misconfiguration issues with the switch if you experience one of
these symptoms:
• A server or client connection to the switch does not come up
• Autonegotiation issues
• Errors on the port
The reason for these symptoms can be a known NIC driver issue, speed and duplex mismatch, or
autonegotiation or cabling problems. For more troubleshooting information, refer to:
http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a00800a7af0.shtm
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If you still have issues after you review and follow the procedure in the document Troubleshooting Cisco
Catalyst Switches to NIC Compatibility Issues, contact Cisco Technical Support for further assistance.
Interface Is in Errdisable
If the interface status is err-disable in the output of the show interface status command, some possible
reasons include:
• Duplex mismatch
• Port channel misconfiguration
• Bridge protocol data unit (BPDU) guard violation
• UniDirectional Link Detection (UDLD) condition
• Late-collision detection
• Link-flap detection
• Security violation
• Port Aggregation Protocol (PAgP) flap
• Layer Two Tunneling Protocol (L2TP) guard
• DHCP snooping rate-limit
In order to troubleshoot these scenarios, refer to the specific feature information in the Catalyst 4500
Series Switch Cisco IOS Software Configuration Guide for your software release.
Faulty Supervisor Engine
If the supervisor engine STATUS LED is red, establish a console connection to the supervisor engine
and enter the show diagnostics power-on command, if you can. If you are unable to get a console
connection or the command output indicates a failure, contact Cisco Technical Support.
If the switch does not boot and fails self diagnostics during the boot sequence, capture the console output
of the startup sequence then contact Cisco Technical Support.
If you do not see any hardware failure in the boot sequence or in the output of the show diagnostics
power-on command, contact Cisco Technical Support.

Cisco Catalyst 4500e Series Specifications

General

Series	Catalyst 4500E Series
Stackable	No
Chassis Options	3-slot, 6-slot, 7-slot, 10-slot
Power Supply Options	AC, DC
Redundancy	Power supply redundancy, supervisor engine redundancy (1+1)
Layer Support	Layer 2
Virtualization	Yes (Virtual Switching System - VSS)
Form Factor	Modular
Ports	Gigabit Ethernet, 10 Gigabit Ethernet, 40 Gigabit Ethernet, and 100 Gigabit Ethernet options depending on the line cards
Jumbo Frame Support	Yes
Features	Flexible NetFlow, TrustSec
Maximum Port Density	Up to 384 ports per chassis
Operating System	Cisco IOS XE
Management	CLI, SNMP, Cisco Prime Infrastructure, Cisco DNA Center
Security Features	802.1X
VLAN Support	Up to 4096 VLANs
QoS Support	Yes
Supervisor Engine Options	Sup8-E