3com 4200G ユーザーズマニュアル

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interface Ethernet1/0/11

port access vlan 101

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interface Ethernet1/0/12

port access vlan 201 

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After you assign the servers and the workstations to different VLANs, they 
cannot communicate with each other. For them to communicate, you need to 
configure a Layer 3 VLAN interface for each of them on the switches.

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After you telnet to an Ethernet port on a switch to make configuration, do not 
remove the port from its current VLAN. Otherwise, your Telnet connection will 
be disconnected.

Protocol-based VLAN, or protocol VLAN, is another approach to VLAN 
implementation other than port-based VLAN. With protocol VLAN, the switch 
compares each packet received without a VLAN tag against the protocol templates 
based on the encapsulation format and the specified field. If a match is found, the 
switch tags the packet with the corresponding VLAN ID. Thus, the switch can 
assign packets to a VLAN by protocol.

Figure 5   Network diagram for protocol-based VLAN configuration

 

Configure the switch to automatically assign IP packets and Appletalk packets of 
the workroom to different VLANs, ensuring that the workstations can 
communicate with their respective servers properly.

IP Host

Eth 1/0/10

Eth1/0 /11

Eth1/0 /12

Workroom

AppleTalk Host

IP Server

AppleTalk Server

Switch 5500

Release V03.02.04 

All versions 

Switch 5500G

Release V03.02.04 

All versions 

Switch 4500

Release V03.03.00 

All versions