| 摘要 |
A communication network comprising a routing system, a media gateway coupled to the routing system, and a network element coupled to the routing system. The media gateway, responsive to a status change of the media gateway, transfers a first packet for a location server to the routing system which indicates the type and wherein the type of the first packet comprises an update message. The network element transfers a second packet for a destination which indicates the type and wherein the type does not comprise an update message. The routing system processes the first packet to determine a first class of service based on the type of the first packet and processes the second packet to determine a second class of service based on the type of the second packet wherein the first class of service is higher than the second class of service.
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