Split Multi-Link Trunking (SMLT) is an
improvement over Multi-Link Trunking (MLT), a method of link aggregation that
allows multiple
Ethernet links to be aggregated
together, and handled as a single logical trunk. SMLT is the splitting of member links in a normal MLT
trunk from an end
device across two devices. These devices synchronize state
across an Inter-Switch Link (IST) such that they appear to the connecting device
to be a single device (switch block) and prevent any packet duplication. SMLT
provides enhanced resiliency with sub-second failover while operating
transparently to end-devices.
See also trunk.