Chapter 1: New In This Release; Stacking; Stacking Licensing - Avaya ERS 2500 Series Troubleshooting Manual

Chapter 1: New in this release

The following sections detail what's new in Avaya Ethernet Routing Switch 2500 Series Troubleshooting,
NN47215-700 for Release 4.3.

Stacking

The ERS 2500 Series software release v4.3 has the capability to stack up to eight units in a
stack. Stacking functionality is available through two methods. First, by purchasing a stack
enabled device. These devices have the rear ports set to stacking mode as default in the
factory. These devices do not use or require a license for the feature. Second, a standalone
unit can have the stacking feature enabled through the use of a Stacking License Kit that
includes a license certificate and a License Authorization code (LAC) for use on the Avaya
Licensing Portal. It is important to note that stack enabled switches can be stacked regardless
of the method the stacking was enabled on them.
The stack enabled units are identifiable through CLI or JDM.

Stacking licensing

There are four variants of Stacking License Kits that are available for standalone switches.
Each kit contains a license certificate and LAC. The license file management and generation
is through the Avaya Licensing Portal. The license file is generated, downloaded and installed
on each standalone ERS 2500 Series device that requires stacking functionality. The
instructions are located on the license certificate.
The license file unlocks stacking functionality and allows the ports on the rear of the switch
to be set to Stacking Mode. License files can be added and removed from the switch. Should
you set a non stack enabled device to default, the license file is removed. There are two cases
that may be encountered. First, when the stack is reset to default (#boot default) the switches
continues to function in stack indefinitely. Second, when the licenses are removed (#clear
license) the stack continues to work until the second reset.
Stack License Kits are available for 1, 10, 50, or 100 devices. The ERS 2500 Series licensing
has a more intuitive LAC schema. The memo field in the license is also populated as part of
the license file generation on the licensing portal.
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