Split Multi-Link Trunking (SMLT)

With Split Multi-Link Trunking two physical switches will look like one switch to the user. SMLT is a link aggregation technology. With SMLT load balancing and link redundancy could be achieved. A requirement is that the user should support IEEE 802.1ax (former 802.3ad).

A network setup would look like the picture below. See the following figure.

Figure 1. Split Multi-Link

In this type of network there is no need for spanning tree protocols as no redundant links in the switch domain have to be blocked. All ports are active and are used for traffic.

When multiple physical switches are used with Split Multi-Link Trunking they will look like one switch to the user.