Telefonaktiebolaget Lm Ericsson (Publ)

Cisco Technology, Inc.

Mohamed Elgendy

David Ian Allan

Joel Halpern

Shyamsundar Nandkishor Maniyar

Kaushik Kumar Dam

Srinivas Kadaba

Gopakumar Choorakkot Edakkunni

Larry Tzuchu Chang

Micah Raphael Nishimura-Simmons

A method implemented by a network device in a cellular communication network with a distributed data plane serving gateway (S-GWu) at an evolved universal terrestrial radio access network (E-UTRAN) node B (eNodeB). The method enables an ingress tunnel router to forward traffic between devices connected to the cellular communication network via location identifier separation protocol (LISP) to enable mobility within the cellular communication network without anchor points.

Using location identifier separation protocol to implement a distributed gateway architecture for 3GPP mobility

In one embodiment, a logical packet switching device has its switching fabric extended between multiple physical devices, such as, but not limited to, over one or more networks (e.g., over tunnel(s), point-to-point link(s), and/or public and/or private L2 or L3 network(s)). In particular, one embodiment extends the switching fabric between multiple different physical devices by effectively merging, at least from the perspective of ingress and/or egress line cards, a switching fabric in each of these multiple different physical devices. In this regard, an ingress lookup operation in a first physical device of one embodiment produces information which is used by the switching fabric in a different physical device to forward a packet to the appropriate egress line card in the different physical device. Further, one embodiment includes line cards which can be used to both extend the switching fabric as well as communicate with packet switching and other devices that are independent of the logical packet switching device.

Logical packet switching device with switching fabric extended between multiple physical devices

Growing community of inventors

San Ramon, CA, United States of America

Mohamed Elgendy