アドレス型キャリアネットワークにおける区別転送

Title:

アドレス型キャリアネットワークにおける区別転送

Document Type and Number:

Japanese Patent JP5106100

Kind Code:

B2

Abstract:

The invention relates to enabling differential forwarding in address-based carrier networks such as Ethernet networks. There is described a method of and connection controller for establishing connections (76, 77) in a frame-based communications network comprising nodes (71-75 and 78) such as Ethernet switches. The connections are established by configuring, in various of the nodes, mappings for forwarding data frames, such as Ethernet frames. The mappings are from a combination of a) a destination (or source) address corresponding to a destination (or source) node (73) of the connection and b) an identifier, such as a VLAN tag. The mappings are to selected output ports of the various nodes. By using the combination of destination (or source) address AND identifier, the mappings enable data frames belonging to different connections (76, 77) to be forwarded differentially (ie forwarded on different output ports) at a node (75) despite the different connections having the same destination node. This enables flexibility in routing connections and the ability to perform traffic engineering.

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Inventors:

Friskney, Robert
Bragg, Nigel
Parry, simon
Ashwood-Smith, Peter
Allen, David
Brookheimer, Simon
Gibbon mark

Application Number:

JP2007506833A

Publication Date:

December 26, 2012

Filing Date:

April 06, 2005

Export Citation:

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