Dell PowerSwitch S4820T Installing the S4820T System - Page 39

Connecting the Stacking Ports (Optional), Important Points to Remember, Stack Group 1 - Ports 4 to 7

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8 Connecting the Stacking Ports (Optional) Before you make your stacking port connections, rack-mount the systems or insert them into a cabinet. NOTE: You can stack up to six S4820T switches. You cannot stack the S4820T system with other SSeries systems. 1. Insert one end of the cable into a configured port. 2. Insert the other end of the cable into a similarly configured port of the adjacent system. There are no unique stacking ports; you can configure the RJ-45 and QSFP+ ports to act as stacking ports. The RJ-45 ports are labeled 0 to 47. The lower QSFP+ ports are labeled 48 and 56. The upper QSFP+ ports are labeled 52 and 60. NOTE: Data center bridging (DCB) is not supported if you use ports 0 to 47 for stacking. Important Points to Remember When stacking the S4820T, ensure that: • You configure data ports as stacking ports in predefined stacking groups of 40G (four 10G ports or one 40G port). • When you assign a stack-group number, you configure the ports associated with that group as stacking ports (refer to the following figure): - Stack Group 0 - Ports 0 to 3 - Stack Group 1 - Ports 4 to 7 - Stack Group 2 - Ports 8 to 11 - ... - Stack Group 11 - Ports 44 to 47 - Stack Group 12 - Port 48 - Stack Group 13 - Port 52 - Stack Group 14 - Port 56 - Stack Group 15 - Port 60 Connecting the Stacking Ports (Optional) 39

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8
Connecting the Stacking Ports (Optional)
Before you make your stacking port connections, rack-mount the systems or insert them into a cabinet.
NOTE:
You can stack up to six S4820T switches. You cannot stack the S4820T system with other S-
Series systems.
1.
Insert one end of the cable into a configured port.
2.
Insert the other end of the cable into a similarly configured port of the adjacent system.
There are no unique stacking ports; you can configure the RJ-45 and QSFP+ ports to act as stacking
ports. The RJ-45 ports are labeled 0 to 47. The lower QSFP+ ports are labeled 48 and 56. The upper
QSFP+ ports are labeled 52 and 60.
NOTE:
Data center bridging (DCB) is not supported if you use ports 0 to 47 for stacking.
Important Points to Remember
When stacking the S4820T, ensure that:
•
You configure data ports as stacking ports in predefined stacking groups of 40G (four 10G ports or
one 40G port).
•
When you assign a stack-group number, you configure the ports associated with that group as
stacking ports (refer to the following figure):
–
Stack Group 0 — Ports 0 to 3
–
Stack Group 1 — Ports 4 to 7
–
Stack Group 2 — Ports 8 to 11
–
. . .
–
Stack Group 11 — Ports 44 to 47
–
Stack Group 12 — Port 48
–
Stack Group 13 — Port 52
–
Stack Group 14 — Port 56
–
Stack Group 15 — Port 60
Connecting the Stacking Ports (Optional)
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