Siemens S323, S223 user manual Subnet-based Vlan, Tagged Vlan, Vlan Tag, Macbase MAC-ADDRESS

UMN:CLI					User Manual
					SURPASS hiD 6615 S223/S323 R1.5
		Command		Mode	Description
	vlan	macbase MAC-ADDRESS			Configure VLAN based on MAC address
	<1-4094>
				Bridge
	no	vlan macbase	MAC-		Clears configured VLAN based on MAC address.
	ADDRESS

8.1.4Subnet-based VLAN

In order to configure VLAN based on Subnet, user should designate Subnet. use the fol- lowing command.

Command	Mode	Description
vlan subnet IP-ADDRESS/M <1-		Configure VLAN based on Subnet
4094>	Bridge
no vlan subnet {IP-ADDRESS}		Clears configured VLAN based on Subnet.

To make precedence between MAC address and Subnet based VLAN, user can choose one of both with below command.

Command	Mode	Description
vlan precedence {MAC / SUB-	Bridge	Configure precedence between MAC based
NET}		VLAN and Subnet based VLAN.

8.1.5Tagged VLAN

In a VLAN environment, a frame’s association with a given VLAN is soft; the fact that a given frame exists on some physical cable does not imply its membership in any particu- lar VLAN. VLAN association is determined by a set of rules applied to the frames by VLAN-aware stations and/or switches.

There are two methods for identifying the VLAN membership of a given frame:

•Parse the frame and apply the membership rules (implicit tagging).

•Provide an explicit VLAN identifier within the frame itself.

VLAN Tag

A VLAN tag is a predefined field in a frame that carries the VLAN identifier for that frame. VLAN tags are always applied by a VLAN –aware device. VLAN-tagging provides a num- ber of benefits, but also carries some disadvantages.

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