Priority and policy based recovery in connection-oriented communication networks
US7333438B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2002 |
| Grant date | Feb 19, 2008 |
| Priority date | — |
| Expiry date | May 21, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/302
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A recovery method for use in a connection-oriented network having nodes interconnected by links for establishing connections within the network, the method described enables the recovery of connections in the network in the event of a failure. The recovery method includes the following steps: (a) assigning connection re-routing priority to the connections in the network based on configured polices in response to the failure; and (b) creating release message bundles based on the assigned connection re-routing priority for use by the nodes in the network to recover connections. More specifically, a failure (e.g., link failure) could affect hundreds or thousands of connections passing through a node. To recover these connections, the node determines which connections should be recovered first and which connections can wait (or may never be recovered). The recovery method determines the priorities of re-routing connections after failure. After the re-routing priorities are determined for connections, the present invention provides mechanisms for bundling release messages and pacing the messages using hold-off timers to maximize the recovery of connections based on various network confi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.