Setting Up A Stacked Configuration; Rack Mounting Stacked Configurations; Cabling Stacked Configurations; Redundant Stacking Cable Connections - Alcatel OS6400-48 Hardware User's Manual

Setting Up a Stacked Configuration

Setting Up a Stacked Configuration

Rack Mounting Stacked Configurations

Prior to setting up and cabling the stacked configuration, be sure that all switches are in place and installed
according to the instructions beginning on page
uration). Up to eight switches may be stacked to form a single virtual chassis.
Note. When rack mounting multiple switches in a stacked configuration, be sure to position all switches in
the rack so that all required stacking cables will have adequate length for the installation.

Cabling Stacked Configurations

In order to connect stacked switches into a virtual chassis, all modules in the stack must be connected via
stacking cables.

Redundant Stacking Cable Connections

In addition to the stacking cables installed between adjacent switch, the top-most switch and bottom-most
switch in the stack must be connected using a redundant stacking cable.

Recommended Cabling Patterns

Switches in a stack are connected to each other by stacking cables. The valid cable lengths are 1.5m
(4.9 feet), 60cm (23.6 inches), and 30cm (11.8 inches). These stacking cables provide high-speed, dual-
redundant links between switches in a stack.
For a stack to have effective redundancy, a redundant stacking cable must be installed between the upper-
most and bottom-most switch at all times. This provides effective failover in the event of a stacking link or
module failure within the stack.
The diagram below shows the recommended stacking cable pattern.
Recommended Stacking Cable Patterns (Chassis Rear Panels Shown)
page 3-10
3-6 (table mount configuration) or
A B
OmniSwitch 6400 Series Hardware Users Guide
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.
Mounting OS6400 Switches
3-8 (rack mount config-
July 2010