Anchor Point Tunnel for Network Resource Reservation
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Solution Overview
Problem
Existing techniques for reserving network resources in communication sessions are inefficient, particularly due to high latency in reservation establishment caused by periodic refresh messages in RSVP protocols for multicast flows using IP-in-IP tunneling.
Innovation Solution
Establishing a tunnel between anchor points for mobile nodes to facilitate efficient reservation of network resources by sending a path message through the tunnel, which can aggregate reservations for multiple communication sessions and dynamically adjust based on traffic requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If periodic refresh messages are used in RSVP protocol for multicast flows using IP-in-IP tunneling, then reservation states are maintained, but latency at reservation establishment becomes very long
Solution Approach 1:
The patent establishes a tunnel between anchor points before resource reservation is needed. This preliminary tunnel establishment allows path messages to be transmitted immediately when reservation is triggered, eliminating the need for periodic refresh messages and significantly reducing reservation establishment latency while maintaining reliable reservation states
2Productivity
If tunnel is established between anchor points for resource reservation, then reservation efficiency is improved, but network setup complexity increases
Solution Approach 1:
The tunnel between anchor points serves multiple functions: it enables efficient resource reservation by providing a dedicated path for path messages, supports aggregation of reservations for multiple communication sessions, and maintains network topology independence. This multi-functionality justifies the additional setup complexity by delivering comprehensive benefits across reservation efficiency, resource aggregation, and network flexibility
Data Source
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AI summary
Requesting a network resource includes facilitating a communication session between a mobile node and an endpoint. A trigger event is received at a first anchor point associated with the mobile node. The trigger event indicates that reservation of a network resource is being requested for the communication session. A second anchor point associated with the endpoint is identified. Reservation of the network resources for the communication sessions is initiated over a tunnel between the first anchor point and the second anchor point.