Congestion managed traffic engineering services in multiprotocol label switching and generalized multiprotocol label switching networks
US8897140B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 7, 2013 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Oct 7, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/17
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for mitigating congestion by using advanced traffic engineering services in a multiprotocol label switching (MPLS) network and/or a generalized multiprotocol label switching (GMPLS) network are provided. In an example, provided is a method for mitigating congestion in an MPLS network. The method includes monitoring, at a network element, a traffic drop count due to traffic queue overflow on at least one of a traffic queue coupled to a link and a network interface coupled to the link. Then the traffic drop count is converted to a normalized congestion indicator for the at least one of the traffic queue and the network interface. Further, based on the normalized congestion indicator, optimize a route of a label switched path in the MPLS network so the route avoids the link. The provided methods and apparatus advantageously improve throughput, reliability, and availability of traffic engineered MPLS and GMPLS transport services.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.