Siemens S223, S323 Vlan Description, Displaying Vlan Information, Mapping Frames to Vlan

User Manual		UMN:CLI
SURPASS hiD 6615 S223/S323 R1.5
	Advantages	Disadvantages
	VLAN association rules only need to be applied	Tags can only be interpreted by VLAN aware devices.
	once.
	Only edge switches need to know the VLAN as-	Edge switches must strip tags before forwarding
	sociation rules.	frames to legacy devices or VLAN-unaware domains.
	Core switches can get higher performance by	Insertion or removal of a tag requires recalculation of
	operating on an explicit VLAN identifier.	the FCS, possibly compromising frame integrity.
	VLAN-aware end stations can further reduce the	Tag insertion may increase the length of a frame be-
	performance load of edge switches.	yond the maximum allowed by legacy equipment.

Tab. 8.1 Advantages and Disadvantages of Tagged VLAN

Mapping Frames to VLAN

From the perspective the VLAN-aware devices, the distinguishing characteristic of a VLAN is the means used to map a given frame to that VLAN. In the case of tagged frame, the mapping is simple – the tag contains the VLAN identifier for the frame, and the frame is assumed to belong to the indicated VLAN. That’s all there is to it.

To configure the tagged VLAN, use the following command.

Command	Mode	Description
		Configures tagged VLAN on a port:
vlan add VLANS PORTS tagged	Bridge	VLANS: enter the VLAN ID.
		PORTS: enter the port number

8.1.6VLAN Description

You can describe each VLAN with the following command

Command	Mode	Description
		Describes VLAN characteristic:
vlan description VLANS DESC	Bridge	VLANS: enter the VLAN ID.
		DESC: enter the detail description
no vlan description VLANS		Deletes the description about specified VLAN ID.

8.1.7Displaying VLAN Information

User can display the VLAN information about Port based VLAN, Protocol based VLAN and QinQ.

Command	Mode	Description
show vlan		Shows all VLAN configurations.
show vlan VLANS	Enable	Shows a configuration for specific VLAN.
show vlan description	Global	Shows a description for specific VLAN.
	Bridge
show vlan dot1q-tunnel		Shows QinQ configuration.
show vlan protocol		Shows VLAN based on protocol.

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