CISCO Systems has released several new models of low-end routers coupled with automated network management software. Network routers are devices that enable many different computer local area networks (LANs) to interconnect and act as a corporate-wide internetwork. It is estimated that Cisco has more than 50 per cent of the world router market. Cisco sees the Asian region as the next major growth area for router technologies. William Messer, Cisco's regional director of Asian Operations said: ''LANs have proven extremely popular in the region.''