Yealink SIP-T48G Administrator's Manual

Also see for Yealink SIP-T48G: Developer's guide Administrator's guide Manual Auto provisioning guide Getting started

Contents

Yealink SIP-T48G Administrator's Manual Manual pdf 163 page image

Configuring Advanced Features151This chapter provides information for making configuration changes for the followingadvanced features: VLAN Voice Quality Monitoring Quality of Service SNMP IPv6 SupportVLAN (Virtual Local Area Network) is used to logically divide a physical network intoseveral broadcast domains. VLAN membership can be configured through softwareinstead of physically relocating devices or connections. Grouping devices with acommon set of requirements regardless of their physical location can greatly simplifynetwork design. VLANs can address issues such as scalability, security and networkmanagement.The purpose of VLAN configurations on the IP phone is to insert tag with VLANinformation to the packets generated by the IP phone. When VLAN is properlyconfigured for the ports (Internet port and PC port) on the IP phone, the IP phone will tagall packets from these ports with the VLAN ID. The switch receives and forwards thetagged packets to the corresponding VLAN according to the VLAN ID in the tag asdescribed in IEEE Std 802.3.VLAN on IP phones allows simultaneous access for a regular PC. This feature allows a PCto be daisy chained to an IP phone and the connection for both PC and IP phone to betrunked through the same physical Ethernet cable.In addition to manual configuration, the IP phone also supports automatic discovery ofVLAN via LLDP, CDP or DHCP. The assignment takes effect in this order: assignment viaLLDP/CDP, manual configuration, then assignment via DHCP.For more information on VLAN, refer toVLAN Feature on Yealink IP Phones, availableonline: http://www.yealink.com/DocumentDownload.aspx?CateId=142&flag=142.LLDP (Linker Layer Discovery Protocol) is a vendor-neutral Link Layer protocol, whichallows IP phones to receive and/or transmit device-related information from/to directlyconnected devices on the network that are also using the protocol, and store the