US 2013/0259057 A1 · PSEUDOWIRE GROUPS IN A PACKET SWITCHED NETWORK

Abstract

Embodiments of the invention are directed to extended pseudowire groups in a packet switched network. Embodiments associate a pseudowire to one or more groups at each provider edge device across which the pseudowire traverses. When a pseudowire set-up request message traverses across various provider edge devices, each provider edge device typically adds one or more local group membership information elements into the pseudowire set-up request message. In that way the grouping assigned by each provider edge device that the pseudowire traverses is made available to all other provider edge devices traversed by the pseudowire. Advantageously, this availability pseudowire grouping information allows any of these provider edge devices to initiate a wildcard message to notify other provider edge devices with respect to pseudowires in any of its local groups, as well as allowing a pseudowire to be bound to multiple groups based on various requirements.

Claims13

Dependent claims

A method of learning an pseudowire extended group comprising:

performing the following steps by a provider edge device:
receiving a pseudowire setup request message that includes a pseudowire label and extended group information;
extracting the extended group information and the pseudowire label from the pseudowire setup request message;
adding the extracted extended group information to a database in the provider edge device;
and
adding the pseudowire label to a record in the database that includes the extracted extended group information.

3 more elements

Dependencies are inferred from the claim text.

Pseudowire groups in a packet switched network

Life of this patent

Pseudowire groups in a packet switched network

Life of this patent

Abstract

Claims13