Installation Guide
Table Of Contents
- Table of Contents
- Preface
- ExtremeSwitching 5520 Series Overview
- Port Partitioning
- Power Supplies for Use with Your Switch
- Expansion Modules
- Site Preparation
- Building Stacks
- Installing Your Switch
- Activating and Verifying the Switch
- Installing Expansion Modules
- Installing a V300 Virtual Port Extender
- Install a V300 Virtual Port Extender on a Wall
- Install a V300 Virtual Port Extender Under or on a Table Surface
- Install a V300 Virtual Port Extender in a VESA Mount
- Install a V300 in a Single Rack Mount
- Install a V300 in a Dual Rack Mount
- Install a V300 in a DIN Rail Mount
- Install a V300-8P-2T-W Model in a Single or Dual Rack Mount
- Installing a V300-8P-2T-W Model in a DIN Rail Mount
- Connecting the V300 Virtual Port Extender to Power
- Installing a V400 Virtual Port Extender
- Installing a Half-Duplex to Full-Duplex Converter
- Install a Versatile Interface Module in a 5520 Series Switch
- Installing a V300 Virtual Port Extender
- Replacing AC Power Supplies
- Replacing Fan Modules
- Monitoring the Device
- Technical Specifications
- ExtremeSwitching 5520 Series Technical Specifications
- V300 Virtual Port Extender Specifications
- V400 Virtual Port Extender Technical Specifications
- Half-Duplex to Full-Duplex Converter Technical Specifications
- 350 W AC Power Supplies Technical Specifications
- 715 W AC Power Supplies Technical Specifications
- 1100 W AC Power Supplies Technical Specifications
- 2000 W AC Power Supply Technical Specifications
- Power Cord Requirements for AC-Powered Switches and AC Power Supplies
- Console Connector Pinouts
- Safety and Regulatory Information
- Considerations Before Installing
- General Safety Precautions
- Maintenance Safety
- Fiber Optic Ports and Optical Safety
- Cable Routing for LAN Systems
- Installing Power Supply Units and Connecting Power
- Selecting Power Supply Cords
- Battery Notice
- Battery Warning - Taiwan
- EMC Warnings
- Japan (VCCI Class A)
- Korea EMC Statement
- Glossary
- Index
Figure 37: Example of a Stack, Showing the Active Topology and the Stack Topology
A stack is the collection of all switches, or nodes, that are cabled together to form one virtual switch
using the ExtremeXOS SummitStack feature.
The maximum cable length supported between switches depends on the types of switches in your
stack, the installed option cards, and the configured stacking ports. For more information, see Planning
to Create Your Stack on page 60.
A stack topology is the set of contiguous nodes that are powered up and communicating with each
other. In the example shown, Switch 8 is not part of the stack topology because it is not powered up.
An active topology is the set of contiguous nodes that are active. An active node is powered up, is
configured for stack operation, and is communicating with the other active nodes.
Switch 5 in the example has failed, stacking is disabled on Switches 6 and 7, and Switch 8 has no power.
As a result, the active topology includes Switches 1 through 4 only.
For more information about SummitStack terminology, see SummitStack Terms on page 57.
Ring Topology: Recommended for Stacking
SummitStack nodes should be connected to each other in a ring topology. In a ring topology, one link is
used to connect to a node and the other link is used to connect to another node. The result forms a
physical ring connection. This topology is highly recommended for normal operation.
Figure 38 represents a maximal ring topology of eight active nodes.
Building Stacks
SummitStack Topologies
ExtremeSwitching 5520 Series Hardware Installation Guide 55