Panasonic KX-TDA30 Manual

Also see for HYBRID IP-PBX KX-TDA100: User guide User guide Technical information Technical information Features guide

Panasonic KX-TDA30 Manual Manual pdf 9 page image

1.3.2 VLAN (Virtual LAN)VLANs are logical segments within a corporate LAN. By assigning VLAN settings to IP-PTs, it is possible toseparate the packets transmitted by an IP-PT according to the type of data, and specify which VLAN each datatype will be sent over. This allows you to avoid generating unnecessary network traffic on each segment, andto reduce the load on the network. As a consequence, speech quality can be assured.Therefore, we recommend using the VLAN feature to perform VoIP communication effectively.Some IP-PTs (e.g., KX-NT136) are equipped with 2 ports, primary and secondary, for packet communication.Allocating these ports to different VLANs enables you to split the paths for packets depending on whether thepacket contains voice signals or data.VLAN settings (VLAN ID and VLAN priority) for the primary port affect voice data transmitted by the IP-PT,whereas VLAN settings for the secondary port apply to data transmitted by a PC connected to the IP-PT. Whensending packets, the IP-PT can attach information on which VLAN the packets are to be transmitted over(VLAN Tagging). The switching hub that receives these packets reads the VLAN information and sends thepackets over the appropriate VLAN. This helps to ensure bandwidth for IP-PT voice transmissions.In this way, an IP-PT with 2 ports can transmit voice packets from the primary port with higher priority thanother packets from the secondary port.Hybrid IP-PBXVLAN-capable Switching HubIP-PT with 2 portsVLAN 1VLAN 1VLAN 1VLAN 2VLAN 2VLAN 1Segment for Voice DataVLAN 2Segment for Other DataVoice PacketOther PacketPCPCPrimary SecondaryOther PacketVLAN 2Note• This VLAN feature complies with IEEE (Institute of Electrical and Electronics Engineers) 802.1Q.• The PBX receives VLAN settings only from the connected switching hub. Therefore, VLAN settings forthe PBX must be assigned at the switching hub.Information about IP Proprietary Telephones 91.3.2 VLAN (Virtual LAN)