ZyXEL Communications MES3500-24, MES3500-24F 9.8 Protocol Based VLANs, Add, VID, Name, Index, Cancel, Active, Delete, Cancel, Priority, Mask-Bits, based VLAN, done configuring

Chapter 9 VLAN

Table 19 Advanced Application > VLAN > VLAN Port Setting > Subnet Based VLAN Setup

LABEL	DESCRIPTION
Add	Click Add to save your changes to the Switch’s run-time memory. The Switch loses
	these changes if it is turned off or loses power, so use the Save link on the top
	navigation panel to save your changes to the non-volatile memory when you are
	done configuring.
Cancel	Click Cancel to begin configuring this screen afresh.
Index	This is the index number identifying this subnet based VLAN. Click on any of these
	numbers to edit an existing subnet based VLAN.
Active	This field shows whether the subnet based VLAN is active or not.
Name	This field shows the name the subnet based VLAN.
IP	This field shows the IP address of the subnet for this subnet based VLAN.
Mask-Bits	This field shows the subnet mask in bit number format for this subnet based VLAN.
VID	This field shows the VLAN ID of the frames which belong to this subnet based VLAN.
Priority	This field shows the priority which is assigned to frames belonging to this subnet
	based VLAN.
Delete	Click this to delete the subnet based VLANs which you marked for deletion.
Cancel	Click Cancel to begin configuring this screen afresh.

9.8 Protocol Based VLANs

Protocol based VLANs allow you to group traffic into logical VLANs based on the protocol you specify. When an upstream frame is received on a port (configured for a protocol based VLAN), the Switch checks if a tag is added already and its protocol. The untagged packets of the same protocol are then placed in the same protocol based VLAN. One advantage of using protocol based VLANs is that priority can be assigned to traffic of the same protocol.

Note: Protocol based VLAN applies to un-tagged packets and is applicable only when you use IEEE 802.1Q tagged VLAN.

For example, ports 1, 2, 3 and 4 belong to static VLAN 100, and ports 4, 5, 6, 7 belong to static VLAN 120. You can configure a protocol based VLAN A with priority 3 for ARP traffic received on port 1, 2 and 3. You can also have a protocol based VLAN B with priority 2 for Apple Talk traffic received on port 6 and 7. All upstream ARP traffic from port 1, 2 and 3 will be grouped together, and all upstream Apple Talk traffic from port 6 and 7 will be in another group and have higher priority than ARP traffic when they go through the uplink port to a backbone switch C.

Figure 41 Protocol Based VLAN Application Example

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MES3500-24/24F User’s Guide