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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.


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

Last update: February 9, 2023