Dell 7000 Series manual Dual Stacking Modules Configured in a Ring

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Stacking Dell PowerConnect 7000 Series Switches

Figure# 2 shows a recommended stacking configuration with dual stacking modules on each switch. Each switch connects to another with 128 Gbps of total bandwidth (4 ports @ 16 Gbps Tx and Rx each). Note that in the recommended configuration, the dual stacking cables from each module both connect to the same switch. In the not-recommended configuration, the dual stacking cables on switch 2, module B and switch 3, module B connect to two different switches.

NOTE: To ensure full bandwidth when using redundant links between two switches, be sure not to split the links across modules. Keep redundant links isolated to a single module on each end as shown in the

recommended configuration in Figure# 2.

Figure 2. Dual Stacking Modules Configured in a Ring

Recommended

Module

Module

Switch

A

B

 

 

 

1

 

 

2

 

 

3

 

 

4

 

 

5

aCables connected in a ring.

aDual stacking cables connect both ports on a module to the same switch.

Not recommended

Module

Module

Switch

A

B

 

 

 

1

 

 

2

 

 

3

 

 

4

 

 

5

rCables not connected in a complete ring.

rDual stacking cables connect ports on a module to two different switches.

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Contents Stacking Dell PowerConnect Series Switches Dell Technical White PaperStacking Dell PowerConnect 7000 Series Switches Contents Introduction ApplicabilityStacking and Management Stacking and Performance Stacking and RedundancyDual Stacking Modules Configured in a Ring Mixing M6348 and PC7000 Series Switches in a Stack Power-Up Sequencing ConsiderationsConsole#boot auto-copy-sw allow-downgrade Initial Installation and Power-up of a Stack Selecting the Master Unit Selecting the Standby UnitAutomatic Update Updating the Firmware on a StackManual Update Creating a Separate Vlan for File Downloads FTPFrom the Switching Vlan Vlan Membership page, click Add Navigate to the Routing IP IP Interface Configuration Page Stacking Dell PowerConnect 7000 Series Switches Click Apply Adding a Stack Member with Minimal Interruption Removing a Stack Member with Minimal Interruption Merging Two Operational Stacks Master FailoverEffect of Master Failover on PoE Devices Stack Member Failover Failover ScenariosScenario Stack Split Stack Split with Manager Failure Nonstop Forwarding Initiating a Warm Failover of the Manager Unit Nonstop Forwarding ScenarioNonstop Forwarding Example NSF Scenario Configuration via CLI RouterStack Switch Switch NSF Example NSF Re-convergence Timing Parameter TimingStacking CLI Commands Small ConfigurationStacking Web Interface Summary
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