OmniSwitch 6450 Stack Overview Managing OmniSwitch 6450 Stacks
page 7-2 OmniSwitch 6450 Hardware Users Guide September 2015
OmniSwitch 6450 Stacking Specifications
Note. OS6450-10 switches can only be stacked with other OS6450-10 switches. Stacking OS6450-10
model with other OS6450 models is not supported.
OmniSwitch 6450 Stack Overview
Users can configure OmniSwitch 6450 switches into a single virtual chassis known as a stack. With stacks,
switching capacity can be easily expanded simply by adding additional switches to the stack. For exam-
ple, a user can start with a stack composed of two switches and add additional switches to that stack as
network demands increase over time.
Note. Switches should be added one at a time in a stack.
Stacks also provide enhanced resiliency and redundancy features. If a switch in a stack goes down or is
taken offline, the other elements in the stack will continue to operate without disruption. In addition, when
a switch auto-synchronizes at boot-up, or if the user manually synchronize the switches (see “Synchroniz-
ing Switches in a Stack” on page 7-37 for more information), operating software and configuration param-
eters are backed up on all switches in the stack. As a result, the original operating software and
configuration parameters can be easily recovered if corrupted or otherwise lost.
Note. In the user guides provided with your OmniSwitch 6450 switch, the terms stack and virtual chassis
are interchangeable referring to OmniSwitch 6450 switches in a stacked configuration. The terms module,
switch, slot, and element are used to refer to individual switches within a stacked configuration. The terms
Chassis Management Module (CMM) and management module refer to those switches operating in a stack
either in the primary or secondary management roles. OmniSwitch 6450 switches operating in an idle role
are essentially acting as network interface modules and therefore may be referred to as Network Interfaces
(NIs).
Models Supporting Stacking All
Maximum Switches in a Stack OmniSwitch 6450-10 - 4
All other models - 8
Required Stacking Module OmniSwitch 6450-10 - N/A (Uses built-in stacking ports)
All other models - OS6450-XNI-U2
Required Transceiver Type Direct Attach Copper
Cable Lengths - Copper 60cm, 1m, 3m, 7m
Cable Lengths - Fiber (SFP+) Up to 10KM (Remote Stacking)
Default Chassis Mode OmniSwitch 6450-10 - Standalone
All other models - Stackable
Remote Stacking Support Supported on OS6450-24, OS6450-48, OS6450-P24,
OS6450-P48 and OS6450-U24 models. Please note that
OS6450-10 and 6450-P10 switches do not support
remote stacking.
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