3Com S7906E Command Reference Manual page 219

Do not configure both the dsap-id and ssap-id arguments in the protocol-vlan command as 0xe0
or 0xff when configuring the user-defined template for llc encapsulation. Otherwise, the
encapsulation format of the matching packets will be the same as that of the ipx llc or ipx raw
packets respectively. When either of the dsap-id and ssap-id arguments is configured, the system
assigns aa to the other argument.
When you use the mode keyword to configure a user-defined protocol template, do not set etype-id
in ethernetii etype etype-id to 0x0800, 0x8137, 0x809b, or 0x86dd. Otherwise, the encapsulation
format of the matching packets will be the same as that of the IPv4, IPX, AppleTalk, and IPv6
packets respectively.
Description
Use the protocol-vlan command to configure the VLAN as a protocol based VLAN and configure the
protocol template for the VLAN.
Use the undo protocol-vlan command to remove the configured protocol template.
By default, no VLAN is bound with any protocol template.
Related commands: display protocol-vlan vlan.
Do not configure a VLAN as both a protocol-based VLAN and a voice VLAN.
Examples
# Configure VLAN 3 as an IPv4 based VLAN.
<Sysname> system-view
[Sysname] vlan 3
[Sysname-vlan3] protocol-vlan ipv4
Because IP depends on ARP for address resolution in Ethernet, you are recommended to configure the
IP and ARP templates in the same VLAN and associate them with the same port to prevent
communication failure.
# Create an ARP protocol template for VLAN 3 (ARP code is 0x0806) to make VLAN 3 transmit ARP
packets.
To use Ethernet encapsulation, use the command:
[Sysname-vlan3] protocol-vlan mode ethernetii etype 0806
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