Dell PowerEdge XL 5133-4 Handbuch "Erste Schritte - Seite 10

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Use the FlexIO modules in an Aggregator that operates in standalone or
stacking mode:
•
In standalone mode, you can install any of the supported FlexIO modules
in two expansion slots. All ports operate at 10GbE to provide increased
bandwidth of up to 160Gbps for uplinks. Stacking is not supported.
•
In stacking mode, only the 40GbE ports on the base module are used for
stacking. FlexIO modules are required for uplink connections.
Usage Notes:
•
After you insert any FlexIO module into an empty slot, you must reload
the Aggregator for the module to be operational.
•
You can hot swap FlexIO modules of the same type without having to
reboot the Aggregator. If you insert a different type of plug-in module, you
must reload the Aggregator for the new module to be recognized.
•
All uplink ports are in the same 10GbE link aggregation group (LAG).
Tips for Aggregator standalone operation:
•
If you use 16 servers in an M1000e and you want a 2:1 oversubscription,
you only need to use the base module ports in 8x10GbE mode.
•
If you use 32 servers in an M1000e and you want a 2:1 oversubscription,
use the base-module ports in 8x10GbE mode and either a 2-Port 40GbE
QSFP+ module operating in 8x10GbE mode or two 4-Port 10GbE SFP+
modules. Use breakout cables with the 2-Port QSFP+ module.
Tips for Aggregator stacking operation:
•
To provide uplink connectivity for the stack, you must use at least one
FlexIO module in either expansion slot on any Aggregator in the stack.
•
To optimize redundancy and high availability, Dell Force10 recommends
that you use at least one FlexIO module for uplinks on each Aggregator in
a stack. If you do not use a FlexIO module on each stacked Aggregator for
uplink connectivity, in the event of a stack split, the server-facing ports on
Aggregators without an uplink connection are brought down.
All FlexIO modules, transceivers, and direct attach cables are sold separately.
10
Hardware Overview