Middlebox control

Details Middlebox control Middlebox control

H - Electricity

04

L

H04L 12/46 (2006.01) H04L 12/22 (2006.01) H04L 12/66 (2006.01) H04L 29/02 (2006.01)

Patent

CA 2405675

In order to carry out actions such as setting up a call from an entity in the address roalm of one middlebox to an entity in the address realm of another middlebox, then a middlebox control node such as a call server is used. Previously, the middlebox control node has needed to have pre- configured information about all the previously and which address roalms they are associated with. The present invention provides one or mere middlebox-identity-providing nodes which are separate from the middlebox control node, and which more directly connected to the end users of the service than the middlebox control nude. This provides greater flexibility in network design and removes the need for middlebox information to be pre-configured at the middlebox control node. Instead, this information is sent to the middlebox control node, as part of signalling messages, from middlebox-identity-providing nodes.

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