Cisco Catalyst 3750 Hardware Installation Guide

Chapter 4 Troubleshooting
Diagnosing Problems
4-4
Catalyst 3750 Switch Hardware Installation Guide
78-15136-03
Diagnosing Problems
The LEDs on the front panel provide troubleshooting information about the
switch. They show POST failures, port-connectivity problems, and overall switch
performance. For a full description of the switch LEDs, see the “LEDs” section
on page 2-13.
You can also get statistics from the browser interface, from the CLI, or from an
SNMP workstation. Refer to the software configuration guide, the switch
command reference guide on Cisco.com, or the documentation that came with
your SNMP application for details.
You can access the Technical Support Website
(http://www.cisco.com/techsupport) for a list of known hardware problems and
extensive troubleshooting documentation including:
• Field notices
• Security advisories
• Troubleshooting resources
• Factory defaults
• Password recovery
• Recovery from corrupted or missing software
• Switch port problems
• Network interface cards
• Troubleshooting tools
Common switch problems fall into these categories:
• Poor performance
• No connectivity
• Corrupted software
Table 4-1 describes how to detect and resolve these problems.

Cisco Catalyst 3750 Specifications

General

Device Type	Switch
Switching Capacity	32 Gbps
Forwarding Rate	38.7 Mpps
Stacking Bandwidth	32 Gbps
RAM	128 MB
Jumbo Frame Support	Yes
Switch Type	Managed
Model	Catalyst 3750 Series
Uplink Interfaces	SFP
Form Factor	Rack-mountable
MAC Address Table Size	12, 000 entries
Routing Protocol	RIP, OSPF, EIGRP
Remote Management Protocol	SNMP, Telnet, HTTP
Features	Layer 3 switching, Layer 2 switching, auto-negotiation, BOOTP support, ARP support, VLAN support, auto-uplink (auto MDI/MDI-X), IGMP snooping, traffic shaping, MAC address filtering, Quality of Service (QoS), Jumbo Frames support, MLD snooping, Dynamic ARP Inspection (DAI), Cisco EnergyWise technology
Power over Ethernet (PoE)	PoE
Operating Temperature	-5 - 45 °C
Operating Humidity	10% to 85% non-condensing