Systems and methods for removing stale mapping entries for network element
US8484375B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2010 |
| Grant date | Jul 9, 2013 |
| Priority date | — |
| Expiry date | Aug 25, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/028
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method may include updating a routing table on a first network element based on a shortest path first calculation in response to a network change event. For each deletion from the routing table, a message may be broadcasted to a second network element adjacent to the first network element indicative of such deletion, the message including a target identifier (TID) associated with such deleted entry, wherein the second network element is configured to invalidate its associated TID address resolution protocol (TARP) cache in response to receiving the message. For each deletion from the routing table, a local TARP cache of the first network element may be searched to determine if an entry exists in the local TARP cache mapping the TID associated with such entry to a NASP associated with such entry. The local TARP cache may be invalidated in response to determining that the entry exists.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.