Link aggregation modes

The link aggregation mode determines how traffic is balanced and routed among aggregated network interfaces. The aggregation mode is selected on a per-pool basis and applies to all aggregated network interfaces in the IP address pool.

OneFS supports dynamic and static aggregation modes. A dynamic aggregation mode enables nodes with aggregated interfaces to communicate with the switch so that the switch can use an analogous aggregation mode. Static modes do not facilitate communication between nodes and the switch.

OneFS provides support for the following link aggregation modes:

Link Aggregation Control Protocol (LACP)
Dynamic aggregation mode that supports the IEEE 802.3ad Link Aggregation Control Protocol (LACP). You can configure LACP at the switch level, which allows the node to negotiate interface aggregation with the switch. LACP balances outgoing traffic across the interfaces based on hashed protocol header information that includes the source and destination address and the VLAN tag, if available. This option is the default aggregation mode.
Loadbalance (FEC)
Static aggregation method that accepts all incoming traffic and balances outgoing traffic over aggregated interfaces based on hashed protocol header information that includes source and destination addresses.
Active/Passive Failover
Static aggregation mode that switches to the next active interface when the primary interface becomes unavailable. The primary interface handles traffic until there is an interruption in communication. At that point, one of the secondary interfaces will take over the work of the primary.
Round-robin
Static aggregation mode that rotates connections through the nodes in a first-in, first-out sequence, handling all processes without priority. Balances outbound traffic across all active ports in the aggregated link and accepts inbound traffic on any port.
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This method is not recommended if your cluster is handling TCP/IP workloads.