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EtherChannel Load Distribution Calculator

Calculate LAG/EtherChannel load balancing across member links

Number of physical links in the EtherChannel/LAG bundle. Common configurations: 2, 4, or 8 links. Power-of-2 counts provide better hash distribution.
The hash algorithm determines which link a flow uses. src-dst-ip provides the best distribution for most IP networks. MAC-based hashing is used for non-IP traffic.
Total number of unique traffic flows. More flows generally produce better load distribution. Each flow is assigned to exactly one member link.

Load Distribution

Distribution Analysis

Hashing Method
Hash Buckets
Buckets per Link
Ideal Flows per Link
Best Case Balance
Worst Case Imbalance
Effective Bandwidth
References:
Cisco EtherChannel uses 8 hash buckets (3-bit XOR)
Power-of-2 link counts yield even bucket distribution
Hash method selection: port-channel load-balance command