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Link Aggregation Calculator

Calculate LACP/EtherChannel throughput, redundancy, and failover capacity.

Number of physical links in the LAG bundle. Common configurations: 2, 4, or 8 links. LACP supports up to 16 links (8 active + 8 standby).
The speed of each individual member link. All links in a LAG bundle must be the same speed.
How evenly the hashing algorithm distributes traffic across links. Perfect distribution = 100%. Real-world varies: src-dst IP hash ~60-85%, 5-tuple hash ~75-95%.
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Link Aggregation Results

Theoretical Max Bandwidth-Gbps
Practical Throughput (with hashing)-Gbps
Single Flow Max (limited to 1 link)-Gbps
N-1 Redundancy (surviving capacity)-Gbps
N-1 Practical Throughput-Gbps
Failover Capacity Loss-%
Redundancy Level-
References: IEEE 802.3ad (LACP). Cisco EtherChannel. Hash distribution efficiency varies by algorithm: src-dst MAC, src-dst IP, 5-tuple. Single flow limited to one member link.