3Com 9100 manual Vlan Names, Deleting a Protocol Filter, Packets Over Protocol

VLAN Names 75

For more information on SNAP for Ethernet protocol types, see

TR 11802-5:1997 (ISO/IEC) [ANSI/IEEE std. 802.1H, 1997 Edition].

Deleting a Protocol Filter

If a protocol filter is deleted from a VLAN, the VLAN is assigned a protocol filter of none. You can continue to configure the VLAN. However, no traffic is forwarded to the VLAN until a protocol is assigned to it.

Precedence of Tagged If a VLAN is configured to accept tagged packets on a particular port,

Packets Over Protocol	incoming packets that match the tag configuration take precedence over
Filters any protocol filters associated with the VLAN.
VLAN Names	The switch supports up to 256 different VLANs. Each VLAN is given a
	name that can be up to 32 characters. VLAN names can use standard
	alphanumeric characters. The following characters are not permitted in a
	VLAN name:
	■	Space
	■	Comma
	■	Quotation mark

VLAN names must begin with an alphabetical letter. Quotation marks can be 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.

You should use VLAN names consistently across your entire network.

Default VLAN The switch ships with one default VLAN that has the following properties:

■The VLAN name is default.

■It contains all the ports on a new or initialized switch.

■The default VLAN is untagged on all ports. It has an internal VLANid of 1.