3com WX3000 Manuel D’Utilisation

 

2-6 

z 

Because the IP protocol is closely associated with the ARP protocol, you are recommended to 

configure the ARP protocol type when configuring the IP protocol type and associate the two 

protocol types with the same port to avoid that ARP packets and IP packets are not assigned to the 

same VLAN, which will cause IP address resolution failure.  

z 

If you specify some special values for both the dsap-id and ssap-id arguments when configuring 

the user-defined template for IIc  encapsulation, the matching packets will take the same 

encapsulation format as some standard type of packets. For example, when both dsap-id and 

ssap-id have a value of 0xFF, the encapsulation format will be the same as that of ipx raw packets; 

if they both have a value of 0xE0, the packet encapsulation format will be the same as that of ipx llc 

packets; if they both have a value of 0xAA, the packet encapsulation format will be the same as that 

of snap packets. To prevent two commands from processing packets of the same protocol type in 

different ways, the system does not allow you to set both the dsap-id and ssap-id arguments to 

0xFF, 0xE0, or 0xAA.  

z 

When you use the mode keyword to configure a user-defined protocol template, if you set the 

etype-id argument for ethernetii or snap packets to 0x0800, 0x809B, or 0x8137, the matching 

packets will take the same format as that of the IP, IPX, and AppleTalk packets respectively. To 

prevent two commands from processing packets of the same protocol type in different ways, the 

switch will prompt that you cannot set the etype-id argument for Ethernet II or snap packets to 

0x0800, 0x089B, or 0x8137. 

 

z 

The protocol template for the protocol-based VLAN is configured. 

z 

The port is configured as a hybrid port, and the port is configured to remove VLAN tags when it 

forwards the packets of the protocol-based VLANs. 

Follow these steps to associate a port with the protocol-based VLAN: 

Enter system view 

— 

Enter port view 

interface interface-type 
interface-number 

— 

Associate the port with the 
specified protocol-based VLAN 

port hybrid protocol-vlan 
vlan vlan-id { protocol-index 
[ to protocol-index-end ] | all } 

Required 

By default, a port is not 
associated with any 
protocol-based VLAN.