Network Session Teardown Consolidation for Server Load Reduction
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Solution Overview
Problem
During mass logout scenarios or network connectivity outages, existing tunneling protocols like L2TP can cause performance degradation in network servers due to the high volume of teardown messages, leading to unreliable performance as they process and acknowledge multiple packets simultaneously.
Innovation Solution
A method is implemented where a single signaling message is generated and transmitted to consolidate the teardown of multiple network tunnels and sessions, using attribute-value pairs to include sets of identifiers, reducing the number of messages exchanged between the access concentrator and the network server, thereby minimizing the likelihood of server overload.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple teardown messages are sent individually for each network tunnel and session, then each teardown can be processed independently, but the network server experiences performance degradation due to high volume of messages
Solution Approach 1:
The patent combines multiple individual teardown messages into a single consolidated signaling message that contains multiple tear-down requests for different network tunnels and sessions. This merging approach reduces the total number of messages the network server must process, thereby preventing performance degradation while maintaining reliable teardown processing for all affected connections.
2Ease of operation
If individual teardown messages are used for each network session, then detailed control over each session is maintained, but the number of packets increases causing server overload
Solution Approach 1:
The invention merges multiple tear-down requests into a single signaling message that includes multiple session identifiers and tunnel information. This consolidation maintains the ability to control and track individual sessions while significantly reducing the quantity of packets exchanged between the access concentrator and network server, thereby preventing server overload.
Solution Approach 2:
The consolidated signaling message serves multiple functions simultaneously: it initiates tear-down for multiple network sessions, identifies specific tunnels affected by the logout, and provides comprehensive session information in a single packet. This multi-functionality reduces packet volume while maintaining detailed control capabilities.
3Loss of information
If multiple separate signaling messages are exchanged for mass logout, then complete teardown information is transmitted, but message processing time increases
Solution Approach 1:
The patent combines multiple tear-down information elements into a single signaling message structure. This merging maintains information completeness by including all necessary session identifiers, tunnel parameters, and tear-down instructions in one consolidated message, thereby reducing the total processing time required compared to handling multiple separate messages sequentially.
Data Source
AI summary
A device may include one or more processors. The one or more processors may identify a set of network tunnels or network sessions for which a teardown is to be performed. The set of network tunnels or network sessions may be associated with a set of identifiers. The one or more processors may generate a signaling message associated with causing the teardown to be performed on the set of network tunnels or network sessions. The signaling message may include two or more identifiers of the set of identifiers. The one or more processors may transmit the signaling message to cause the teardown to be performed on two or more network tunnels or network sessions, of the set of network tunnels or network sessions, corresponding to the two or more identifiers.