3Com WX3000 Configuring Ethernet Ports, Adding an Ethernet Port to Specified VLANs, Vlan tag

Table 1-3Processing of incoming/outgoing packets

	Processing of an incoming packet
Port					Processing of an outgoing
	If the packet
type						packet
	does not carry	If the packet carries a VLAN tag
	a VLAN tag
		z	If the VLAN ID is just the
			default VLAN ID, receive the
Access			packet.	Deprive the tag from the packet
		z	If the VLAN ID is not the	and send the packet.
			default VLAN ID, discard the
			packet.
				z	If the	VLAN	ID	is just	the
					default VLAN ID, deprive the
Trunk		z	If the VLAN ID is just the		tag and send the packet.
				z	If the	VLAN	ID	is not	the
	Receive the		default VLAN ID, receive the
					default	VLAN	ID, keep		the
			packet.
	packet and add				original	tag unchanged			and
			If the VLAN ID is not the
	the default tag to	z			send the packet.
	the packet.		default VLAN ID but is one of
					If the	VLAN	ID	is just	the
			the VLAN IDs allowed to pass	z
			through the port, receive the		default VLAN ID, deprive the
			packet.		tag and send the packet.
		z If the VLAN ID is neither the		z	If the	VLAN	ID	is not	the
Hybrid			default VLAN ID, nor one of		default VLAN ID, deprive the
			the VLAN IDs allowed to pass		tag or keep the tag unchanged
			through the port, discard the		(whichever		is	done	is
			packet.		determined by the port hybrid
					vlan vlan-id-list { tagged
					untagged }		command)		and
					send the packet.

To guarantee the proper packet forwarding, the default VLAN ID of the local hybrid port or trunk port should be identical with that of the hybrid port or trunk port on the peer device.

Adding an Ethernet Port to Specified VLANs

You can add the specified Ethernet port to a specified VLAN. After that, the Ethernet port can forward the packets of the specified VLAN, so that the VLAN on this switch can intercommunicate with the same VLAN on the peer device.

An access port can only be added to one VLAN, while hybrid and trunk ports can be added to multiple VLANs.

Note that the port shall be added to an existing VLAN.

Configuring Ethernet Ports

Making Basic Port Configuration

Follow these steps to make basic port configuration:

1-3