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Handcell DAG1000 Series User Manual
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Contents
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DAG1000/2000 Series FXS Voice Gateway User Manual17half-duplex”, “100Mbps full-duplex”, default is “Auto Detect”.• When select “Obtain IP address automatically”, DAG will obtain IP address by DHCP.• When select “Use the following IP address”, that configure DAG to fixed IP addressmode.• When select “PPPoE”, please fill in account and password offered by ISP in internetaccount and password.【Notes】：1） If select DHCP to obtain IP address, please ensure DHCP server in network and worknormally.2） Under route mode, please configure LAN port and WAN port in different segment,otherwise DAG can’t work normally.3） Under route mode, login DAG configuration interface only used LAN port.4） After configuration, restart device configuration validation.4.5.2 VLAN ParameterGenerally, Internet provides only Best Effort Service. Since Ethernet is the most spread LANaccess technology, importance of providing it a quality of service mechanism ought not tobe neglected.Ethernet technology also used as WAN technology, not only as LAN technology. Due torapidly increasing use Internet through Public Switched Telecommunication Network(PSTN), Telephone Companies are forced to implement IP-based networks as their PSTNbackbones. A network like this without any Quality of Service mechanisms would bedisastrous. Just imagine yourself trying to get an emergency call through while others justsurf the Internet.1) 802.1QThe IEEE 802.1Q standard defines architecture for Virtual Bridged LANs, the servicesprovided in Virtual Bridged LANs and the protocols and algorithms involved in the provisionof those services.No Quality of Service mechanisms are defined in this standard, but an important |
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