SMC Networks 10/100 manual 151, Guidelines for Creating Trunks

PORT TRUNKING COMMANDS

Command	Function	Mode	Page
interface	Configures a trunk and enters	GC	3-89
port-channel	interface configuration mode for the
	trunk
port-group	Adds a predefined port group to a	IC	3-152
	trunk
show interfaces	Shows trunk information	NE,	3-99
status port-channel		PE

Guidelines for Creating Trunks

•Finish configuring port trunks before you connect the corresponding network cables between switches to avoid creating a loop.

•A trunk can contain up to eight 10/100 Mbps ports or up to two 1000 Mbps ports.

•The ports at both ends of a connection must be configured as trunk ports.

•All ports in a trunk must consist of the same media type (i.e., twisted-pair or fiber).

•All ports in a trunk must be configured in an identical manner, including communication mode (i.e., speed, duplex mode and flow control), VLAN assignments, and CoS settings.

•All the ports in a trunk have to be treated as a whole when moved from/to, added or deleted from a VLAN via the specified port-channel.

•STP, VLAN, and IGMP settings can only be made for the entire trunk via the specified port-channel.

3-151