Managing OmniSwitch 6850/6850E Series Stacks
Stack Cabling
OmniSwitch 6850/6850E Series Hardware Users Guide
June 2011
page 6-19
Note.
When planning the stack cabling configuration, keep in mind that the switch connected to stacking
port A of the primary switch will be assigned the secondary management role by default.
Examples of Stacking Cable Patterns (Chassis Rear Panels Shown)
Redundant Stacking Cable Connection
OmniSwitches allow redundant stacking cable connections between the top-most and bottom-most
switches in a stack.
Important.
For a stacked configuration to have effective redundancy, a redundant stacking cable must be
installed between the upper-most and bottom-most switch in the chassis at all times.
A stack of eight switches in a crossed (stacking port
A to stacking port B) configuration. Note that a
redundant stacking cable connection exists between
the top and bottom switches. This connection is
required for effective redundancy across the stack.
A stack of eight switches in a straight (stacking port A
to stacking port A; stacking port B to stacking port B)
configuration. Note that a redundant stacking cable
connection exists between the top and bottom
switches. Again, this connection is required for
effective redundancy across the stack.
A B
A B
