Patent ID: 9451338
Filing Date: 2016-09-20
CPC Classification: H04L,H04Q

Claim Text:
1. A network processing device disposed on a line card and configured to provide a backbone interface of the line card, the network processing device comprising: at least one interface of a serial type having a maximum of two data terminals per data transfer direction, each interface of said serial type being configured to provide connection to corresponding interfaces of said serial type of a plurality of data pump devices located on the same line card as the network processing device and each comprising at least one communication port of a digital subscriber line type, the at least one interface of said serial type defining multiple logical channels on a single physical link and the data pump devices being individually addressable by the logical channels, wherein each interface of said serial type is operable to transfer data chunks of a predetermined data chunk format, the predetermined data chunk format comprising a channel address field configured to indicate a logical channel the data chunk is assigned to.