Patent ID: 7830810

Claim:
A method, comprising: receiving a response message from a network in response to a service request message for transmission of data, the response message identifying at least two service levels supported by the network; marking data to be transmitted with a service identifier which identifies a selected at least one of the at least two service levels supported by said network identified in said response message; receiving an update message from the network, the update message identifying at least two service levels supported by the network indicating corresponding forwarding treatment required for data marked with an identifier identifying a respective one of the at least two service levels identified in the updated message, wherein at least one of the at least two service levels identified in the update message is different than the at least two service levels identified in the response message; and marking data to be transmitted with a service identifier which identifies a selected at least one of the at least two service levels supported by said network identified in said update message instead of the service identifier that identifies at least one of the at least two service levels identified in the response message.