METHODS AND SYSTEMS FOR PROVIDING A LOGICAL NETWORK LAYER FOR DELIVERY OF INPUT/OUTPUT DATA

摘要

A method for routing input/output (10) data in a telecommunication system including a network node having a plurality of first integrated circuit (IC) cards, a plurality of second 1C cards and a switching fabric, each second IC card connected to a corresponding first IC card in a respective slot of the network node xs described. The method involves receiving the IO data at an external port of any of the plurality of first or second 1C cards. When packets of the IO data are received at an external port of a given second IC card, the given second IC card performs a packet classification of the packets to at least in part determine a destination for the packets. A further step of the method includes delivering the packets to a first or second IC card destination according to the packet classification performed by the given second IC card via a logical network layer existing on the first and second IC cards and the switching fabric. A particular implementation includes use in an Advanced Telecommunication Computing Architecture (ATCA) system.