Dell N2000 Series, Руководство по настройке

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Switch Feature Overview
77
Virtual Local Area Network Supported Features
For information about configuring VLAN features see "Configuring VLANs"
on page 645.
VLAN Support
VLANs are collections of switching ports that comprise a single broadcast
domain. Packets are classified as belonging to a VLAN based on either the
VLAN tag or a combination of the ingress port and packet contents. Packets
sharing common attributes can be groups in the same VLAN. The Dell
Networking series switches are in full compliance with IEEE 802.1Q VLAN
tagging.
Port-Based VLANs
Port-based VLANs classify incoming packets to VLANs based on their ingress
port. When a port uses 802.1X port authentication, packets can be assigned
to a VLAN based on the result of the 802.1X authentication a client uses
when it accesses the switch. This feature is useful for assigning traffic to
Guest VLANs or Voice VLANs.
IP Subnet-based VLAN
This feature allows incoming untagged packets to be assigned to a VLAN and
traffic class based on the source IP address of the packet.
MAC-based VLAN
This feature allows incoming untagged packets to be assigned to a VLAN and
traffic class based on the source MAC address of the packet.
IEEE 802.1v Protocol-Based VLANs
VLAN classification rules are defined on data-link layer (Layer 2) protocol
identification. Protocol-based VLANs are used for isolating Layer 2 traffic for
differing Layer 3 protocols.