Protocol Vlan Configuration; Protocol Vlan Technology - D-Link xStack DGS-3610 Series Configuration Manual

DGS-3610 Series Configuration Guide
10

10.1 Protocol VLAN Technology

Every packet that the device port receives should be classified based on VLAN, so that the
packet belongs to a unique VLAN. There are three possibilities:
1. If the packet is an empty VLAN ID packet (UNTAG or Priority packet), and the device
only supports port-based VLAN classification, the VLAN ID in the tag added to the
packet is the PVID of the input port.
2. If the packet is an empty VLAN ID packet (UNTAG or Priority packet), and the device
supports the packet protocol type-based VLAN classification, the VLAN ID in the VLAN
ID set for the protocol group configuration on the input port will be selected as the VLAN
ID in the tag added to the packet. However, if the protocol type of the packet doesn't
comply with all the protocol group configurations on the input port, the VLAN ID will be
assigned according to the VLAN classfication of the port-based.
3. If the packet is a TAG packet, its VLAN classfication is determined by the VLAN ID in
the TAG.
The Protocol VLAN technology is a VLAN classification technology that is based on the
protocol type of the packet. It classifies the empty VLAN ID packet of certain type of
protocol into the same VLAN.
The Protocol VLAN configuration takes effect for the Trunk port only, not for the Access
port.
Our products support two kind of classification technology, such as the global IP
address-based VLAN classification technology, and the Ethernet-type VLAN based on
the packet type on the port.
Because IP address-based VLAN classification is a global configuration, it will apply to
all the Trunk ports once you have configured it with IP address-based VLAN
classification.
4. If the input packet of VLAN ID is empty , and its IP address matches the configured IP
address, this packet will be classified into the configured VLAN.
5. If the input packet of VLAN ID is empty, at the same time its packet type and Ethernet
type respectively match those you configured on the input port, this packet will be
classified into the configured VLAN.
The priority of IP address-based VLAN classification is higher than the priority of the packet
type and Ethernet type-based VLAN classification. Hence, if you have configured both the IP

Protocol VLAN Configuration

Chapter 10 Protocol VLAN Configuration
10-1