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Bandwidth aggregation

Packet level balancing#

The Tunnel Aggregation Group (TAG) distributes packets at wirespeed between the available healthy TAPs assigned as ports according to a particular chosen algorithm.

Packet distribution algorithms#

  • Round Robin
  • Weighted Round Robin (WRR)
  • Hash Based Session Load Balancing
  • Broadcast (in development)

WRR for full aggregation#

WRR is the default setting for all TAGs with weights set by calibration of available bandwidth on each TAP. These calibration values are captured for use i in the aggregation algorithm and the QoS engine.

WRR provides full bandwidth aggregation, i.e. the combined throughput of the underlying component links, delivered as single high bandwidth data stream.

Limits#

There are only practical limits, such as number of available ports, affordability of circuits, CPU capability and network hardware.

In practice, the following apply:

  • 2 - 10 Links
  • 10Gbit/s +
  • Ratio 10:1 between differing bandwidths