Cisco 3750G-12S - Catalyst Switch - Stackable User Manual

Name: Cisco 3750G-12S - Catalyst Switch - Stackable
Brand: Cisco
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3-9

Catalyst 3750 Switch Hardware Installation Guide

OL-6336-10

Chapter 3 Troubleshooting

Finding the Switch Serial Number

Figure 3-6 Catalyst 3750G-24TS Switch Serial Number Location

Figure 3-7 Catalyst 3750-24TS and 3750V2-24TS Switch Serial Number Location

Figure 3-8 Catalyst 3750-24PS and 3750V2-24PS Switch Serial Number Location

Table of Contents3
Preface7
Audience7
Purpose7
Conventions7
Related Publications8
Obtaining Documentation, Obtaining Support, and Security Guidelines9
Product Overview11
Features11
Front Panel Description11
Fast Ethernet Switches13
Catalyst 3750-24FS and 3750V2-24FS Switch Front Panel13
Catalyst 3750-24TS and 3750V2-24TS Switch Front Panel14
Catalyst 3750-48TS and 3750V2-48TS Switch Front Panel15
Catalyst 3750-24PS and 3750V2-24PS Switch Front Panel15
Catalyst 3750-48PS and 3750V2-48PS Switch Front Panel16
Gigabit Ethernet Switches16
Catalyst 3750G-12S and Catalyst 3750G-12S-SD Switch Front Panel16
Catalyst 3750-24T, 3750G-24TS, and 3750G-24TS-1U Switch Front Panel16
Catalyst 3750G-48TS Switch Front Panel18
Catalyst 3750G-24PS Switch Front Panel18
Catalyst 3750G-48PS Switch Front Panel19
Catalyst 3750G-16TD Switch Front Panel19
Catalyst 3750G Integrated Wireless LAN Controller Switch Front Panel20
10/100 and 10/100/1000 Ports20
100BASE-FX Ports22
SFP Module Slots22
SFP Modules23
XENPAK Module Slot (Catalyst 3750G-16TD Switch)23
Leds23
Master LED24
System LED25
Rps Led25
Master LED25
Master Led26
Port Leds and Modes27
Rear Panel Description31
Stackwise Ports34
Power Connectors35
Internal Power Supply Connector35
DC Power Connector35
Cisco RPS Connector35
Console Port36
Management Options36
Network Configurations37
Switch Installation39
Preparing for Installation39
Warnings40
Installation Guidelines44
Box Contents45
Tools and Equipment45
Verifying Switch Operation45
Powering on the Switch and Running POST45
Powering off the Switch46
Planning the Stack46
Planning Considerations46
Powering Considerations46
Cabling Considerations47
Recommended Cabling Configurations48
Installing the Switch49
Rack-Mounting50
Removing Screws from the Switch50
Attaching Brackets to the Catalyst 3750G-24TS Switch50
Attaching Brackets to the Catalyst 3750G Integrated Wireless LAN Controller Switches50
Attaching Brackets to All Other Catalyst 3750 Switches50
Mounting the Switch in a Rack50
Attaching the Cable Guide50
Wall-Mounting65
Attaching the Brackets to the Switch for Wall-Mounting65
Attaching the RPS Connector Cover65
Mounting the Switch on a Wall65
Mounting the Switch on a Wall67
Table- or Shelf-Mounting68
Connecting Stackwise Cable to Stackwise Ports68
Installing and Removing SFP Modules71
Installing SFP Modules into SFP Module Slots71
Removing SFP Modules from SFP Module Slots72
Installing and Removing XENPAK Modules (Catalyst 3750G-16TD Switch)73
Installing a XENPAK Module74
Removing a XENPAK Module76
Connecting to the 10/100 and 10/100/1000 Ports77
Connecting to an SFP Module79
Connecting to a Fiber-Optic SFP Module79
Connecting to 1000BASE-T SFP Modules81
Connecting to a XENPAK Module82
Where to Go Next83
Diagnosing Problems85
Verify Switch POST Results85
Monitor Switch Leds85
Verify Switch Connections85
Troubleshooting85
Bad or Damaged Cable86
Ethernet and Fiber Cables86
Link Status87
Poe Connections87
Transceiver Module Port Issues87
Port and Interface Settings88
Ping the End Device88
Spanning Tree Loops88
Monitor Switch Performance89
Speed, Duplex, and Autonegotiation89
Autonegotiation and NIC Cards89
Cabling Distance89
Clearing the Switch IP Address and Configuration90
Replacing a Failed Stack Member90
Finding the Switch Serial Number91
Technical Specifications97
And 10/100/1000 Ports109
Connector and Cable Specifications109
Connector Specifications109
SFP Module Ports109
XENPAK Module Ports (Catalyst 3750G-16TD Switch)109
- Sfp Module Ports111
- Identifying a Crossover Cable113
SFP Module Cable Specifications113
Two Twisted-Pair Cable Pinouts113
Four Twisted-Pair Cable Pinouts for 10/100 Ports113
Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports113
Identifying a Crossover Cable116
Crossover Cable and Adapter Pinouts117
Preparing for Installation119
Connecting to DC Power119
Grounding the Switch119
Wiring the DC-Input Power Source119
Grounding the Switch120
Configuring the Switch with the CLI-Based Setup Program127
- Accessing the CLI128
- Appendix128
Accessing the CLI through Express Setup128
Accessing the CLI through the Console Port128
Taking out What You Need128
- Taking out What You Need129
- Stacking the Switches (Optional)130
- Connecting to the Console Port131
- Starting the Terminal Emulation Software132
- Connecting to a Power Source132
- Entering the Initial Configuration Information133
IP Settings133
Completing the Setup Program133

Cisco 3750G-12S - Catalyst Switch - Stackable User Manual

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Cisco 3750G-12S - Catalyst Switch - Stackable Specifications

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Brand	Cisco
Model	3750G-12S - Catalyst Switch - Stackable
Category	Switch
Language	English