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Stacking Dell PowerConnect 7000 Series Switches
Page 4
#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
Not recommended
Module
A
Module
B
Switch
1
2
3
4
5
Switch
1
2
3
4
5
Module
A
Module
B
a
Cables connected in a ring.
a
Dual stacking cables connect both ports
r
Cables not connected in a complete ring.
r
Dual stacking cables connect ports on a module to
two different switches.
on a module to the same switch.