Edgewater Networks 4300T Instrukcja Użytkownika Pobierz pdf (Strona 10)

Local Area Network (LAN) Architecture

Page 10 of 51

Network 3.1 - VLAN switch, integrated EdgeMarc

EdgeMarc model supported

• 4300T

• 4500E, 4500T4

Topology Characteristics

• EdgeMarc provides ALG functionality to phones

• EdgeMarc provides NAT, Firewall, Traffic Shaping, and DHCP to PCs and phones

• Phones and PCs have separate subnets, each assigned by DHCP

• EdgeMarc is SIP Proxy to phones

• VLAN switch provides 802.1 (standard Ethernet) and 802.1q (VLAN tagged Ethernet) frames to phones

and PCs, as appropriate

• The EdgeMarc-to-Switch link is a “trunk” (ie 802.1q) link

• WAN interface is provided a public (un-NATed) IP address

• EdgeMarc LAN interface uses three VLANs

• One VLAN for management of the Switch. None of the end-user devices join this VLAN.

• One VLAN for voice traffic to phones. For phones that support VLANs, the switch ports use 802.1q

frames for this VLAN.

• One VLAN for data to PCs. This VLAN uses standard 802.1 frames, since few PC NICs support tagged

packets.

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Edgewater Networks 4300T Instrukcja Użytkownika Strona 10