Session-Aware Load Balancing is a method of distributing traffic across multiple logically grouped monitor ports, effectively summing the bandwidth of the load balanced ports while maintaining awareness of each session or flow. Output from the load balanced group is designed to maintain packet order within any given conversation (any single session stream between point A and point B), as well as to guarantee a consistent output port for any single conversation This ensures that a monitoring tool will see every packet of a given conversation or protocol session. |
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The benefits of Session-Aware Load Balancing include:
- Preventing oversubscription/packet loss (eg. monitoring 10 GigE traffic with Gigabit tools)
- Maintaining session delivery consistency across multiple monitor ports
- Ensuring an even traffic distribution across a group of monitor ports based on session criteria
The criteria for the load balancing can be based on layers 2 to 4, including GTP Tunnel Element ID. |
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