Cisco Technology, Inc.

Xiaopu Zhang

Yuefeng Jiang

Fang Yang

Yuchen Zhou

Yibin Yang

Liqin Dong

Chia Alex Tsai

Jeffrey Cai

Weng Hong Chan

A network device may receive a request seeking a location identifier for an endpoint identifier from a first router. The network device may determine that the endpoint identifier belongs to a dynamic endpoint identifier range associated with a plurality of routers. The request may be forwarded to the plurality of routers to discover a host having the endpoint identifier and a notification may be received from one of the plurality of routers reporting discovery of the host having the endpoint identifier. The network device may send an identifier of the one of the plurality of routers which reports discovery of the host to the first router as the location identifier for the endpoint identifier.

Pro-active mechanism to detect LISP movable silent host

In one embodiment, a method includes receiving a packet from a host at a first hop router in a network site, the first hop router in communication with a core network and operable to encapsulate packets received from the host for transmission to a remote network site, setting a status for the host in a table at the first hop router as active, starting a timer for the host at the first hop router, transmitting a probe message from the first hop router to the host if a packet is not received at the first hop router from the host before the timer expires, updating the status of the host at the table based on whether a response message is received from the host, and using the host status to detect host migration. An apparatus and logic are also disclosed herein.

Proactive detection of host status in a communications network

Techniques provided herein use aggregate endpoints in a virtual overlay network. In general, aggregate endpoints operate as a single receiving entity for certain packets/frames sent between different physical proximities of the virtual overlay network.

Scalable network virtualization with aggregate endpoints

Growing community of inventors

Shanghai, China

Xiaopu Zhang