Proactive detection of host status in a communications network
US9641417B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2014 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Apr 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/28
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.