Dell Networking S5000 Installationshandbuch - Seite 38
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NOTE: Both rows of QSFP+ ports require that you install the 40GbE optics with the tabs facing up.
NOTE: When you cable the ports, be sure not to interfere with the airflow from the small vent holes above and
below the ports.
Splitting QSFP+ Ports to SFP+ Ports
The S5000 supports splitting a single 40GbE QSFP+ port into four 10GbE SFP+ ports using one of the supported breakout
cables.
For a list of supported optics, refer to the S5000 data sheet: http://www.dell.com/us/enterprise/p/force10-s-series/pd.
•
Configure the system to recognize the port mode change.
CONFIGURATION mode
stack-unit unit-number port number portmode quad
stack-unit<unit-number> - Enter the stack member unit identifier of the stack member to reset. The
–
range is 0 to 11. The default is 0.
port <number>- Enter the port number of the 40GbE port to be split. The range is 48 to 60.
–
–
portmode quad - Configure a 40GbE port to operate in 4x10GbE mode.
Example of splitting a QSFP+ port to SFP+ ports
stack-unit 0 port 52 portmode quad
Important Points to Remember
•
You cannot use split ports as a stack-link to stack an S5000 unit.
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The quad port must be in a default configuration before you can split it into four 10GbE SFP+ ports. When you
split the port, the 40GbE port is lost in the running configuration. Be sure that the port is also removed from other
L2/L3 feature configurations.
•
For the split-port change to take effect, you must reload the system after issuing the CLI change commands.
Connecting the Stacking Ports (Optional)
Before you make your stacking port connections, rack-mount the systems or insert them into a cabinet. To connect the
stacking ports, insert one end of the optical cable into a configured port and insert the other end of the optical cable into
a similarly configured port of the adjacent system. There are no unique stacking ports; you can configure the SFP+ and
QSFP+ ports to act as stacking ports. The SFP+ ports are labeled 0 to 47. The QSFP+ ports are labeled 48 and 56 for the
lower ports and 52 and 60 for the upper ports.
NOTE: You can connect up to six S5000 switches in a single stack.
NOTE: The S5000 system does not stack with other S-Series systems.
NOTE: Stacking is not supported on 40GbE ports operating in 4x10GbE (quad) mode.
NOTE: If you use three or more S5000 units in a stack, you can connect up to a maximum of eight 10GbE ports or
two 40GbE ports in links between peer switches. If you use only two S5000 units in a stack, you can connect up to
four 40GbE ports in links between the two switches.
Important Points to Know
•
Data ports are configured as stacking ports in predefined stacking groups of 40GbE (four 10GbE ports or one
40GbE port).
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