Cisco EtherSwitch Service Modules Feature Guide

Switch Stack Configuration Scenarios

Table 4

Switch Stack Configuration Scenarios (continued)

 

 

 

 

 

Scenario

 

Action

Result

 

 

 

Stack master election

Assuming that all stack members have the

The stack member with the cryptographic IP base

specifically determined

same priority value:

image is elected stack master.

by the cryptographic IP

1. Make sure that one stack member has

 

base image

 

 

 

the cryptographic IP base image

 

 

 

 

 

 

installed and that the other stack

 

 

 

member has the noncryptographic IP

 

 

 

base image installed.

 

 

 

2. Restart both stack members at the same

 

 

 

time.

 

 

 

 

Stack master election

Assuming that both stack members have the

The stack member with the lower MAC address is

specifically determined

same priority value, configuration file, and

elected stack master.

by the MAC address

software image, restart both stack members

 

 

 

at the same time.

 

 

 

 

Stack member number

Assuming that one stack member has a

The stack member with the higher priority value

conflict

 

higher priority value than the other stack

retains its stack member number. The other stack

 

 

member:

member has a new stack member number.

 

 

1. Ensure that both stack members have

 

 

 

the same stack member number. If

 

 

 

necessary, use the switch

 

 

 

current-stack-member-number

 

 

 

renumber new-stack-member-number

 

 

 

global configuration command.

 

 

 

2. Restart both stack members at the same

 

 

 

time.

 

 

 

 

Addition of a stack

1. Power down the new Cisco

The stack master is retained. The new Cisco

member

 

EtherSwitch service module.

EtherSwitch service module is added to the switch

 

 

2. Through their StackWise ports, connect

stack.

 

 

the new Cisco EtherSwitch service

 

 

 

module to a powered-up switch stack.

 

 

 

3. Power up the new Cisco EtherSwitch

 

 

 

service module.

 

 

 

 

 

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Cisco Systems NME-16ES-1G manual Current-stack-member-number Renumber new-stack-member-number