Access Port : An access port is a kind of connection on a switch that can be used to connect a virtual machine on VLAN unaware. This port delivers the virtual machine with connectivity by a switch that is VLAN aware without requiring it to support VLAN tagging.
Combo Port : These ports are used to connect devices to the switch. Switches are connected to a port that is called a combo port. These ports can be assigned to different combinations of devices. A device combination is a group of one or more devices used to transmit or receive data. In other words, a combo port can be a single interface with two front ends, such as an RJ45 connector and an SFP module connector (also called MiniGBIC).
