ZyXEL VES1724-56B2 User Guide - Page 141
Protocol Based VLANs
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Chapter 10 VLAN Table 53 Advanced Application > VLAN > VLAN Port Setting > Subnet Based VLAN Setup LABEL Add Cancel Index Active Name IP Mask-Bits VID Priority Delete Cancel Paging DESCRIPTION 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. Click Cancel to change the fields back to their last saved values. This is the index number identifying this subnet based VLAN. Click on any of these numbers to edit an existing subnet based VLAN. This field shows whether the subnet based VLAN is active or not. This field shows the name the subnet based VLAN. This field shows the IP address of the subnet for this subnet based VLAN. This field shows the subnet mask in bit number format for this subnet based VLAN. This field shows the VLAN ID of the frames which belong to this subnet based VLAN. This field shows the priority which is assigned to frames belonging to this subnet based VLAN. Click this to delete the subnet based VLANs which you marked for deletion. Click Cancel to begin configuring this screen afresh. Select Prev or Next to show the previous/next screen or select a page number from the drop-down list box to display a specific page if all entries cannot be seen in one screen. 10.8 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, port 1, 2, 3 and 4 belong to static VLAN 100, and port 4, 5, 6, 7 belong to static VLAN 120. You configure a protocol based VLAN A with priority 3 for ARP traffic received on port 1, 2 and 3. You 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 VES1724-56 User's Guide 141