
CHAPTER 1: VLAN TAGGING
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II Micro – Operation Manual
12-1
VLAN TAGGING
12. VLAN Tagging
Using a VLAN
and
VLAN tagging is an advanced application for use in networks where the web GUI interface must be accessed
remotely over the streaming network facilities and where local physical access to the Device or a dedicated management
network is not practical.
12.1 Chapter Contents
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•
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“Create a VLAN Using the Device GUI”
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“Create VLAN with MKIP Interface”
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12.2 VLAN General Information
12.2.1 What is a VLAN?
In computer networking, a single layer-2 network may be partitioned to create multiple distinct broadcast domains, which are
mutually isolated so that packets can only pass between them via one or more routers; such a domain is referred to as a virtual
local area network, virtual LAN or VLAN (Wikipedia).
12.2.2 What is VLAN Tagging?
IEEE 802.1Q is the networking standard that supports Virtual LANs (VLANs) on an Ethernet network. The standard defines
a system of VLAN tagging for Ethernet frames and the accompanying procedures to be used by bridges and switches in
handling such frames. (Wikipedia).
12.2.3 What is the VLAN Numbering Range?
VLANs may be assigned a decimal number from 0 to 4096.
12.3 Support for VLANs
The Device supports VLAN tagging to enable the Management MGMNT physical port to be accessed across the streaming
GbE network on a configured switch. This allows remote management of the Device without the problems associated with
connecting the management port to an already congested network. Data packets intended for the management process are
effectively partitioned from the streaming data.
Each of the Ethernet streaming ports support the creation of multiple virtual Ethernet ports which may be used to create
VLANs. This feature may be used to allow both routing the streaming of the input and output video and management access
to the GUI on separate virtual networks as if there were two separately wired physical networks installed. In VLAN tagging, the
broadcast domain is extended across the VLAN as if the Devices in the group were all locally connected together.
By using VLANs, the video content and management access streams, while arriving together, are separated at the destination
switch into two distinct VLAN groups, each routed to a specific physical port defined by the VLAN. In this way all streaming
video will be routed to the video receiving Device and the management access will be routed to the management computer(s).
In this way, only traffic intended for a given receiving Device will receive it. Since broadcast domains are extended over
VLANs, all of the features of a broadcast domain are extended across the VLAN as well.
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