Cisco EtherSwitch Service Modules Feature Guide
Information About the Cisco EtherSwitch Service Modules
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Cisco IOS Release 12.2(25)SEC
Cisco StackWise Concepts
This section describes the concepts applicable to switch stacks of Cisco EtherSwitch service modules.
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Overview of Switch Stacks, page 12
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Switch Stack Membership, page 13
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Stack Master Election and Re-Election, page 14
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Switch Stack Bridge ID and Router MAC Address, page 15
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Stack Member Numbers, page 15
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Stack Member Priority Values, page 16
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Switch Stack Software Compatibility Recommendations, page 17
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Stack Protocol Version Compatibility, page 17
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Major Incompatibility Between Cisco EtherSwitch Service Modules, page 17
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Minor Incompatibility Between Cisco EtherSwitch Service Modules, page 18
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Switch Stack Configuration Files, page 18
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Switch Stack Management Connectivity, page 19
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Management Connectivity to the Switch Stack Through an IP Address, page 19
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Management Connectivity to the Switch Stack Through an SSH Session, page 19
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Management Connectivity to the Switch Stack Through Console Ports, page 19
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Management Connectivity to Specific Stack Members, page 20
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Accessing the CLI of a Specific Stack Member, page 20
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Accessing the CLI of a Specific Stack Member, page 20
Overview of Switch Stacks
You can manage the Cisco EtherSwitch service modules as a single unit by connecting them through the
StackWise ports of a 24-port Cisco StackWise EtherSwitch service module, and managing the switch
stack through a Cisco router. For information about which Cisco routers support the Cisco EtherSwitch
service modules, see the
Cisco Network Modules Hardware Installation Guide
.
Note
•
You can install only one Cisco StackWise EtherSwitch NME-XD-24ES-1S-P service module in a
single router chassis.
•
You can install up to two Cisco EtherSwitch service modules in a Cisco 3845, Cisco 3825, Cisco
2851, or Cisco 2821 router or up to four Cisco EtherSwitch NME-16ES-1G-P service modules in
the Cisco 3745 or Cisco 3845 routers.
•
Installing more than two Cisco EtherSwitch service modules in a router chassis requires specific
cabling. For information about cabling multiple Cisco EtherSwitch service modules, see the Cisco
Network Modules Hardware Installation Guide at the following URL:
http://www.cisco.com/en/US/products/hw/modules/ps2797/products_module_installation_guide_b
ook09186a00802d2910.html
