Cisco Catalyst 3750-X User Manual

Contents
vii
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
Hardware Loopback Example: LINK OK event 5-30
Hardware Loop Example: LINK NOT OK Event 5-31
Finding a Disconnected Stack Cable 5-32
Fixing a Bad Connection Between Stack Ports 5-33
CHAPTER 6 Clustering Switches 6-1
Understanding Switch Clusters 6-2
Cluster Command Switch Characteristics 6-3
Standby Cluster Command Switch Characteristics 6-3
Candidate Switch and Cluster Member Switch Characteristics 6-4
Planning a Switch Cluster 6-4
Automatic Discovery of Cluster Candidates and Members 6-5
Discovery Through CDP Hops 6-5
Discovery Through Non-CDP-Capable and Noncluster-Capable Devices 6-6
Discovery Through Different VLANs 6-7
Discovery Through Different Management VLANs 6-7
Discovery Through Routed Ports 6-8
Discovery of Newly Installed Switches 6-9
HSRP and Standby Cluster Command Switches 6-10
Virtual IP Addresses 6-11
Other Considerations for Cluster Standby Groups 6-11
Automatic Recovery of Cluster Configuration 6-12
IP Addresses 6-13
Hostnames 6-13
Passwords 6-14
SNMP Community Strings 6-14
Switch Clusters and Switch Stacks 6-14
TACACS+ and RADIUS 6-16
LRE Profiles 6-16
Using the CLI to Manage Switch Clusters 6-16
Catalyst 1900 and Catalyst 2820 CLI Considerations 6-17
Using SNMP to Manage Switch Clusters 6-17
CHAPTER 7 Administering the Switch 7-1
Managing the System Time and Date 7-1
Understanding the System Clock 7-2
Understanding Network Time Protocol 7-2

Cisco Catalyst 3750-X Specifications

General

Switching Capacity	160 Gbps
Stacking Bandwidth	64 Gbps
Max Stacking Units	9
Layer Support	Layer 2 and Layer 3
Form Factor	Rack-mountable
DRAM	256 MB
Flash Memory	64 MB
Model	Cisco Catalyst 3750-X Series
Ports	24 or 48 10/100/1000 Ethernet ports
Uplink Interfaces	4 SFP or 2 SFP+
Features	StackWise Plus, EnergyWise
Image	IP Base or IP Services
Operating Temperature	0 to 40°C
Operating Humidity	10 to 85% noncondensing