Forwarding unicast traffic

Refer to Figure 46: Unicast traffic flow across DT switches for the following discussion about forwarding traffic with switch-to-switch distributed trunking. Traffic from Host X or Y that is destined for Host F is always forwarded by Switch A over one of its standard 802.1AX trunk links to either Switch B or Switch C. When either Switch B or Switch C receives incoming traffic from Switch A, the traffic is directly forwarded to Switch F without traversing the ISC link.

Traffic from Host Y to Host D may go over the ISC if Switch A sends it to Switch C instead of sending it to Switch B.

Figure 46: Unicast traffic flow across DT switches