Glossary Copyright Nokia Networks OyC33907001SE_00 Glossary-3Digital Subscriber Line Access MultiplexerA network element which multiplexes the traffic coming from thehigh-speed subscriber lines and forwards this traffic to the ATM net-work.encapsulationWrapping of data in a protocol header.EthernetLAN specification IEEE 802.3.hostComputer system on a network.Integrated services digital networkIntegrated services network that provides digital connections betweenuser-network interfaces. ISDN provides or supports a range of differ-ent telecommunications services, for example a variety of telephonyand data services.IP networkData communications network based on the Internet Protocol.ISDN filterA device used for separating the ISDN signal from ADSL data signalsin the digital subscriber line.MAC addressEthernet address.