Reference Guide

Stacking | 935
• Solid Green indicates the unit is the stack master (management unit)
For the S4820T, the following lists the stacking LED’s status indications:
• Solid Blue indicates the unit is the stack master (management unit). If the S4820T is a standalone unit,
it will display Solid Blue as well.
• Blinking Blue indicates the unit is the stack standby.
• Solid Green indicates the unit is a stack member.
Display Status of Stacking Ports
To display the status of the stacking ports, including the topology:
The following example shows four switches stacked together with two 40G links in a ring topology.
FTOS#show system stack-ports
Topology: Ring
Interface Connection Link Speed Admin Link Trunk
(Gb/s) Status Status Group
------------------------------------------------------------------
1/48 7/56 40 up up
1/52 5/60 40 up up
2/56 6/52 40 up up
2/60 4/52 40 up up
3/48 7/52 40 up up
3/52 5/56 40 up up
4/52 6/48 40 up up
4/56 4/48 40 up up
FTOS#
The following example shows the parameters for the management unit in the stack.
FTOS#show system stack-unit 1
-- Unit 1 --
Unit Type : Management Unit
Status : online
Next Boot : online
Required Type : S4810 - 52-port GE/TE/FG (SE)
Current Type : S4810 - 52-port GE/TE/FG (SE)
Master priority : 0
Hardware Rev : 3.0
Num Ports : 64
Note: On the S4820T, the Stacking LED is located on the PSU side of the unit.
Note: See Locating an S4820T within a Stack for information about using the S4820T’s Location LED.
Task Command Syntax Command Mode
Display the stacking ports.
show system stack-ports
EXEC Privilege