User manual

4300T User Manual Edgewater Networks, Inc.
Version 1.7 17
Typically, all VoIP devices are placed in the same VLAN while data devices are placed
in a different VLAN. This is to ensure priority treatment of the VoIP traffic on the
LAN. Note that the 4300T does not require VLANs to prioritize VoIP traffic;
prioritization is determined by the VOS Application Layer Gateway, regardless of
VLAN. Some important notes about VLANs:
 A physical LAN port will operate in either 802.1 or 802.1q mode, not both
simultaneously
 The 4300T supports up to 16 VLANs
 A unique IP Subnet is assigned to each VLAN
 You can associate one or more VLANs to each LAN port operating in 802.1q
mode
 Traffic within a VLAN is switched among all ports with membership
 Traffic between VLANs is routed by the 4300T
 The 4300T ALG can only be assigned to one VLAN id
- Only ALG traffic is prioritized over the WAN
- Other non-VoIP traffic in the same VLAN will not receive priority
treatment
 A DHCP server can be enabled/disabled per VLAN
 Cisco Discovery Protocol is not supported
 802.1p is not currently supported
A. Select the Network link.
B. Select Enable VLAN support.
C. Press Submit.
Be careful when changing a port from 802.1 to 802.1q mode. Any 802.1
devices connected to that port (such as your management PC!) will loose
access to the 4300T. Port 4 is only able to receive 802.1 frames, so a PC
can always be connected to this port if the configuration of the other ports
is unknown.
D. Select System
E. Select VLAN
Configuration
F. Adjust LAN Port
Membership drop-
down boxes to
specify 802.1 or
802.1q mode, as
desired. Press
Modify.
If changing modes,
the radio-buttons
or checkboxes will
change from one
style to the other.
G. Under Add and
configure a new
VLAN enter a new
VLAN ID, the