ATM on the Backplane

ATM on the backplane is a feature of the VNswitch 900EA, XA, and FA modules that allows the ATM port to be redirected to the MultiSwitch 900 backplane and connected to an ATMswitch 900F.

Within a single hub, a maximum of four modules can be configured for ATM on the backplane. Each module must use a separate channel (the MultiSwitch 900 has four channels reserved for ATM on the backplane) and can connect only to an ATMswitch 900F. That is, you cannot use these channels to connect the ATM port on one VNswitch module to the ATM port on another VNswitch module.

Note:  When the ATM port on a VNswitch module is directed to the backplane, the front panel ATM port is disabled.