3Com 1100 - Manual (Page 240)

240 G LOSSARY
VLAN tagging A system that allows traffic for multiple VLANs to be carried on a single
link.
VLT Virtual LAN Trunk. A Switch-to-Switch link that carries traffic for all the
VLANs on each Switch.
WAN Wide Area Network. A communications network that covers a wide
area. A WAN can cover a large geographic area, and may contain
several LANs within it.