3Com 7750 Series Command Reference Manual page 70

3Com Switch 7750 Series
Command Reference Guide – VLAN Commands
protocol-end: End protocol index, ranging from 0 to 6. Note that its value must be larger
than or equal to the value of the protocol-index argument.
all: Specifies all protocol indices.
Description
Use the protocol-vlan command to configure the protocol template used for
classifying protocol-based VLANs.
Use the undo protocol-vlan command to cancel the configuration.
Caution:
In a VLAN, it is not allowed to configure two templates with the same protocol type and
encapsulation format. If any parameter in a user-defined template has the same value
as the corresponding parameter in the standard template, the user-defined template
and the standard template cannot be configured in the same VLAN.
Pay attention to the following notices about the template configuration:
It is not allowed to configure both ipx llc standard template and LLC user-defined
template in the same VLAN.
It is not allowed to configure both ipx raw standard template and LLC user-defined
template whose dsap and ssap are both ff in the same VLAN.
It is not allowed to configure both ipx ethernetii standard template and EthernetII
user-defined template whose etype is 8137 in the same VLAN.
It is not allowed to configure both ipx snap standard template and SNAP
user-defined template whose etype is 8137 in the same VLAN.
When the values of the dsap-id and ssap-id arguments are AA, the packet
encapsulation type is not llc but snap. To avoid template conflict, the system disable
the value AA for the dsap-id and ssap-id arguments when you configure LLC
user-defined template.
In addition, pay attention to the following notices about IP template:
If a packet can match both Ipv4-based VLAN and the VLAN based on other protocol,
Ipv4-based VLAN takes higher priority.
ip [ ip-address [ net-mask ] ] defines IPv4-based VLAN. If you want to define the
VLANs based on IP or other encapsulation formats, use mode { ethernetii [ etype
etype-id ] } and snap [ etype etype-id ], in which, etype-id is 0x0800.
Related command: display protocol-vlan vlan.
Example
# Configure VLAN 3 as a VLAN based on all IP packets.
Chapter 1 VLAN Configuration Commands
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