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Stack configuration 45
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Stack configuration
The Nortel Ethernet Routing Switch 2500 series provides the capability for
intelligent fail-safe resilient stacking of up to eight units in a single switch
stack. This provides uninterrupted connectivity of up to 400 user ports in a
virtual switch managed as a single unit.
ATTENTION
All ERS 2500 series switches must be running software release 4.1 before being
connected in a stack configuration.
To set up a stack, do the following:
Step Action
1 Power down all switches.
2
Set the Unit Select switch at the rear of the non-base units to the
off position.
3
Plug all stack cables in to the rear RJ-45 cascade ports and ensure
the cables are connected from Cascade Down on the first unit to
Cascade Up on the second unit and so on. The last unit in the stack
must be connected back to the first unit for full stack resiliency.
Ensure all the cascade cables are properly connected.
4
Power up all the switches in the stack starting with the Base unit.
ATTENTION
In a mixed stack of 2526T, 2526T-PWR, 2550T, and 2550T-PWR, any
switch can act as the Base unit.
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ATTENTION
The rear ports must be operating Stacking Mode before adding a switch into
a stack.
Nortel Ethernet Routing Switch 2500 Series
Overview — System Configuration
NN47215-500 (323162-B) 02.02 Standard
4.1 19 November 2007
Copyright © 2007, Nortel Networks
.