When a port is added to the aggregator, some flows must be moved to the newly added port in order to maintain even (or approximately even) distribution. With Resilient Hashing configured, the flows moved to the newly added port will come evenly (or approximately evenly) from the flows previously mapped to each of the former member ports.
Remapping Flows Example
| Port | # of table entries before addition | # of table entries after addition | Change in # of flows on port |
|---|---|---|---|
| 1 | 32 | 29 | -3 |
| 2 | 32 | 29 | -3 |
| 3 | 32 | 29 | -3 |
| 4 | 32 | 29 | -3 |
| 5 | 32 | 28 | -4 |
| 6 | 32 | 28 | -4 |
| 7 | 32 | 28 | -4 |
| 8 | 32 | 28 | -4 |
| 9 | 0 | 28 | -4 |
| Total Entries | 256 | 256 | +28 |
With Resilient Hashing configured, the minimum number of flows are moved in order to maintain even distribution.
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