AT this year's Comnet '95 in Washington DC, German networking firm Wandel & Goltermann (WG) will demonstrate a new application for the DominoWAN Internetwork Analyser. Called LANLink Monitor, this application lets users examine LAN traffic running on the WAN in order to pin-point the sources of WAN congestion or detect unnecessary traffic. This knowledge can translate into significant savings on WAN costs. 'Because WAN charges are so expensive, it's important that network managers know that they're getting the maximum LAN data throughput on these links,' said product manager Roger Lingle. 'With the LANLink Monitor, managers can perform detailed analysis of upper layer LAN traffic on the WAN link to maximise LAN payload versus overhead.' DominoWAN's LANLink Monitor not only shows the relationship of overhead traffic to payload, it also shows a LAN station-listed IP or IPX address. This capability allows network managers to see all active stations on the WAN link and learn how each station is using the bandwidth. In addition, LANLink Monitor displays, in real time, which LAN stations are taking up what per cent of the network traffic. It can also track use over extended periods, helping users detect trends. DominoLAN and DominoWAN were developed by WG at its Research Triangle Park, North Carolina, facility. WG's North Carolina division also develops and manufactures internetwork analysis products that include the Internetwork Diagnostics & Monitoring System for remote monitoring and DA-30 internetwork protocol, performance and device testing on two interfaces simultaneously. WG was the first to introduce this internetworking technology when it delivered the DA-30 in 1990. DominoWAN costs DM18,870 (about HK$106,238).