Interest keep alives at intermediate routers in a CCN
US9553812B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2014 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Jan 6, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/63
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
One embodiment provides a system that facilitates an intermediate node to handle a potential timeout event. During operation, the system receives, by an intermediate node, a keep-alive control packet which indicates a name for an Interest message, an indicator to keep alive a Pending Interest Table (PIT) entry, and a time period for which to keep the PIT entry alive. The intermediate node determines whether the keep-alive control packet corresponds to the PIT entry based on the name, and, responsive to determining that the keep-alive control packet corresponds to the PIT entry, updates a timeout value of the PIT entry based on the time period indicated in the keep-alive control packet. Responsive to determining one or more interfaces specified in the PIT entry from which the Interest message is received, the intermediate node forwards the keep-alive control packet to the one or more interfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.