3com 9000 SX User Manual

C

HAPTER

 5: V

IRTUAL

 LAN

S

 (VLAN

S

)

If necessary, you can define a customized protocol filter based on 
EtherType, LLC, and/or SNAP. Up to six filters may be part of a protocol 
filter. To define a protocol filter, do the following:

■

Create a protocol using the following command:

create protocol <protocol_name>

■

Configure the protocol using the following command:

config protocol <protocol_name> add <protocol_type> 

<hex_value>

Supported protocol types include:

■

EtherType

■

LLC

■

SNAP

A maximum of seven protocol names, each containing a maximum of 
six protocol filters, can be defined.

The Switch 9000 supports up to 64 different VLANs. Each VLAN is 
given a name that can be up to 32 characters. VLAN names can use 
standard alpha-numeric characters. The following characters are not 
permitted in a VLAN name:

■

Space

■

Comma

■

Quotation mark

VLAN names must begin with an alphabetical letter unless quotation 
marks are used to enclose a VLAN name that does not begin with an 
alphabetical character, or that contains a space, comma, or other 
special character.

VLAN names are locally significant. That is, VLAN names used on one 
Switch are only meaningful to that Switch. If another Switch is 
connected to it, the VLAN names have no significance to the other 
Switch.

SW9000.BK  Page 10  Wednesday, April 1, 1998  11:00 AM