Cisco Systems 3560X Manual De Usuario

This section describes how to recover from a failed command switch. You can configure a redundant 
command switch group by using the Hot Standby Router Protocol (HSRP). For more information, see 

For more information, see 

 and 

 Also see the Getting Started with Cisco Network Assistant, available 

on Cisco.com. 

HSRP is the preferred method for supplying redundancy to a cluster.

If you have not configured a standby command switch, and your command switch loses power or fails 
in some other way, management contact with the member switches is lost, and you must install a new 
command switch. However, connectivity between switches that are still connected is not affected, and 
the member switches forward packets as usual. You can manage the members as standalone switches 
through the console port, through the Ethernet management port, or, if they have IP addresses, through 
the other management interfaces.

You can prepare for a command switch failure by assigning an IP address to a member switch or another 
switch that is command-capable, making a note of the command-switch password, and cabling your 
cluster to provide redundant connectivity between the member switches and the replacement command 
switch. These sections describe two solutions for replacing a failed command switch:

These recovery procedures require that you have physical access to the switch.

For information on command-capable switches, see the release notes.

To replace a failed command switch with a command-capable member in the same cluster, follow these 
steps:

Disconnect the command switch from the member switches, and physically remove it from the cluster.

Insert the member switch in place of the failed command switch, and duplicate its connections to the 
cluster members.

Start a CLI session on the new command switch. 

You can access the CLI by using the console port, by using the Ethernet management port, or, if an IP 
address has been assigned to the switch, by using Telnet. For details about using the console port, see 
the switch hardware installation guide. For details about using the Ethernet management port, see the 

 and the hardware installation guide.

At the switch prompt, enter privileged EXEC mode:

Switch> enable

 

Switch#

Enter the password of the failed command switch.