Loading ...
Loading ...
Loading ...
XMG1915 Series User’s Guide
266
CHAPTER 48
VLAN
48.1 VLAN Overview
This chapter shows you how to configure 802.1Q tagged and port-based VLANs.
48.1.1 What You Can Do
• Use the VLAN Status screen (Section 48.3 on page 269) to view and search all static VLAN groups.
• Use the VLAN Status Details screen (Section 48.3.1 on page 269) to view detailed port settings and
status of the static VLAN group.
• Use the Static VLAN Setup screen (Section 48.4 on page 270) to configure a static VLAN for the Switch.
• Use the VLAN Port Setup screen (Section 48.5 on page 272) to configure the static VLAN (IEEE 802.1Q)
settings on a port.
• Use the Voice VLAN Setup screen (Section 48.6 on page 273) to set up VLANs that allow you to group
voice traffic with defined priority and enable the Switch port to carry the voice traffic separately from
data traffic to ensure the sound quality does NOT deteriorate.
• Use the MAC Based VLAN Setup screen (Section 48.7 on page 275) to set up VLANs that allow you to
group untagged packets into logical VLANs based on the source MAC address of the packet. This
eliminates the need to reconfigure the Switch when you change ports. The Switch will forward the
packets based on the source MAC address you set up previously.
• Use the Vendor ID Based VLAN Setup screen (Section 48.8 on page 277) to set up VLANs that allow
you to group untagged packets into logical VLANs based on the source MAC address of the packet.
You can specify a mask for the MAC address to create a MAC address filter and enter a weight to set
the VLAN rule’s priority.
• Use the Port-Based VLAN Setup screen (Section 48.9 on page 278) to set up VLANs where the packet
forwarding decision is based on the destination MAC address and its associated port.
48.1.2 What You Need to Know
Read this section to know more about VLAN and how to configure the screens.
48.2 Introduction to IEEE 802.1Q Tagged VLANs
A tagged VLAN uses an explicit tag (VLAN ID) in the MAC header to identify the VLAN membership of a
frame across bridges
– they are not confined to the switch on which they were created. The VLANs can
be created statically by hand. The VLAN ID associates a frame with a specific VLAN and provides the
information that switches need to process the frame across the network. A tagged frame is 4 bytes
longer than an untagged frame and contains 2 bytes (16 Bits) of TPID (Tag Protocol Identifier, residing
within the type or length field of the Ethernet frame) and 2 bytes (16 Bits) of TCI (Tag Control Information,
starts after the source address field of the Ethernet frame). The TCI field consists of three fields: User
Priority, CFI (Canonical Format Indicator), and VLAN ID.
Loading ...
Loading ...
Loading ...