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Cisco WS-C3550-12G Software Configuration Manual page 6

Multilayer switch

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Contents

Clustering Switches

5

Catalyst 3550 Multilayer Switch Software Configuration Guide

vi

Scheduling a Reload of the Software Image

Configuring a Scheduled Reload

Displaying Scheduled Reload Information

5-1

Understanding Switch Clusters

Command Switch Characteristics

Standby Command Switch Characteristics

Candidate and Member Switches Characteristics

Planning a Switch Cluster

Automatic Discovery of Cluster Candidates and Members

Discovery through CDP Hops

Discovery through Non-CDP-Capable and Noncluster-Capable Devices

Discovery through Different VLANs

Discovery through the Same Management VLAN

Discovery through Different Management VLANs

Discovery through Routed Ports

Discovery of Newly Installed Switches

HSRP and Standby Command Switches

Virtual IP Addresses

Automatic Recovery of Cluster Configuration

Considerations for Cluster Standby Groups

5-15

5-16

5-16

SNMP Community Strings

5-17

Access Modes in CMS

5-17

Availability of Switch-Specific Features in Switch Clusters

Creating a Switch Cluster

Enabling a Command Switch

Adding Member Switches

Creating a Cluster Standby Group

Verifying a Switch Cluster

Using the CLI to Manage Switch Clusters

Catalyst 1900 and Catalyst 2820 CLI Considerations

Using SNMP to Manage Switch Clusters

4-17

4-17

4-18

5-2

5-2

5-3

5-4

5-5

5-7

5-10

5-11

5-12

5-13

5-14

5-16

5-17

5-18

5-19

5-20

5-22

5-24

5-25

5-26

5-3

5-4

5-6

5-8

5-9

5-13

5-18

5-25

78-11194-03

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Catalyst 3550