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AT-GS950/10PS Switch Web Interface User’s Guide
259
When you are configuring the voice VLAN parameters, you must enter the
complete MAC address of at least one of your IP phones. An “OUI Mask”
is automatically generated and applied by the AT-S110 management
software to yield the manufacturer’s OUI. If the OUI of the remaining
phones from that manufacturer is the same, then no other IP phone MAC
addresses need to be entered into the configuration.
However, it is possible that you can find more than one OUI from the same
manufacturer among the IP phones you are installing. It is also possible
that your IP phones are from two or more different manufacturers in which
case you will find different OUIs for each manufacturer. If you identify more
than one OUI among the IP phones being installed, then one MAC
address representing each individual OUI must be configured in the voice
VLAN. You can enter a total of 10 OUIs.
Dynamic Auto-
Detection vs
Static Ports
Prior to configuring the voice VLAN, you must configure a tagged VLAN
which is the basis for the voice VLAN configuration. The VLAN must be
configured with one or more tagged or untagged ports that will serve as
the voice VLAN uplink/downlink. By default, a tagged or untagged port is a
static member of a tagged VLAN.
Note
See “Create a Tagged VLAN” on page 157 for more information
about configuring a tagged VLAN with “Not Member” and Static
ports.
The ports that you choose to configure as dynamic Auto-Detection ports
must be connected directly to an IP phone. When you initially define the
ports of a tagged VLAN for your voice VLAN configuration, they must be
configured as a “Not Member” ports. The “Not Member” ports are eligible
to dynamically join the voice VLAN when voice data is detected with a pre-
defined OUI in the source MAC address. The port will leave the voice
VLAN after a specified timeout period. This port behavior is configured
with the voice VLAN Auto-Detection feature.
Note
See “Organization Unique Identifier (OUI)” on page 258 for more
information concerning OUIs.
For the Auto-Detection feature to function, your IP phone(s) must be
capable of generating 802.1Q packets with imbedded VLAN ID tags. You
must manually configure your IP phone(s) for the same VLAN ID as the
AT-GS950/10PS switch’s voice VLAN ID. When voice data is detected on
one of the “Not Member” ports, the packets from the IP phone will contain
the voice VLAN ID so they are switched within the AT-GS950/10PS
switch’s voice VLAN.