Stack configuration 45—End—Stack configurationThe Nortel Ethernet Routing Switch 2500 series provides the capability forintelligent fail-safe resilient stacking of up to eight units in a single switchstack. This provides uninterrupted connectivity of up to 400 user ports in avirtual switch managed as a single unit.ATTENTIONAll ERS 2500 series switches must be running software release 4.1 before beingconnected in a stack configuration.To set up a stack, do the following:Step Action1 Power down all switches.2 Set the Unit Select switch at the rear of the non-base units to theoff position.3 Plug all stack cables in to the rear RJ-45 cascade ports and ensurethe cables are connected from Cascade Down on the first unit toCascade Up on the second unit and so on. The last unit in the stackmust 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.ATTENTIONIn a mixed stack of 2526T, 2526T-PWR, 2550T, and 2550T-PWR, anyswitch can act as the Base unit.—End—ATTENTIONThe rear ports must be operating Stacking Mode before adding a switch intoa stack.Nortel Ethernet Routing Switch 2500 SeriesOverview — System ConfigurationNN47215-500 (323162-B) 02.02 Standard4.1 19 November 2007Copyright © 2007, Nortel Networks.
