Applications developed for large-scale heterogeneous environments must address a number of challenges not faced in other networked computer systems such as LAN clusters. We describe some of the problems faced in implementing the PlanetLab Node Manager application and present general guidelines for application developers derived from those problems.

This paper deals with the so-called LAN-Emulation (LAN-E) as specified by the ATMForum, applying the Source Routing Protocol (SRP), which is well known from the Token Ring area. The LAN-E is one possible realisation for the integration of connectionless communication on Local Area Networks (LANs), into the connection oriented Asynchronous Transfer Mode (ATM). The routing in those emulated or vi...

A real extended LAN is re-designed by replacing its FDDI backbone with an ATM LAN compliant with version 1.0 of ATM Forum LAN Emulation standard. The designed ATM LAN is studied through two sets of simulations. The results of the first one, characterized by a load level equal to the one measured on the real network, show that the ATM LAN can support the traffic currently present on the real net...

Until recently, it has been difficult to motivate students to learn about serverbased local area network (LAN) design because students find the subject very technical, dry, and boring. A software tool (named LAN-Designer) has been developed at the Auckland University of Technology that gives students an interactive, hands-on experience in server-based LAN design. LAN-Designer is suitable for cl...

The beamline network system at SPring-8 consists of three LANs; a BL-LAN for beamline component control, a BL-USER-LAN for beamline experimental users and an OA-LAN for the information services. These LANs are interconnected by a firewall system. Since the network traffic and the number of beamlines have increased, we upgraded the backbone of BL-USER-LAN from Fast Ethernet to Gigabit Ethernet. ...

BACKGROUND Long-acting lanreotide (LAN) 120 mg every 4 weeks reduces liver volume (LV) in patients with polycystic liver diseases (PCLD). Animal studies demonstrated that the inhibition of hepatic and renal cystogenesis is dose dependent. AIM To investigate the safety and efficacy of two different LAN doses in PCLD patients. METHODS The 6-month results of the LOCKCYST I trial, its extension...