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The International Commuter Security Assn made a study of Web sites with firewalls and found that over 70% of so-called secured sites are not protected from infiltration. To minimize the risks of such crimes against virtual private networks, the Enterprise Security Architecture, which allows the separation of security domains into regions, was developed. The technology consists of functional areas such as access control, network services, policy enforcement, physical perimeter security and content/liability management., The Internet may be the key to e-commerce, but not 'til tough issues like security get addressed. A new architecture view is needed. A recent analysis by the International Computer [...]

Two main techniques can be used to integrate the Systems Network Architecture (SNA) and Transmission Control Protocol/Internet Program (IP)networking protocols. These are conversion using the Telnet 3270 solution and encapsulation using Data Link Switching. IBM's new Enterprise Extender High Performance/Ip encapsulation solution and the SNA-to-HTML and SNA-to-Java applets are also discussed., This problem won't go away - but fortunately, some new techniques can ease the pain of the inevitable. SNA and TCP/IP are the two most widely installed networking protocols in [...]

IBM plans to engage in general contracting instead of focusing on its main business which is hardware or infrastructure vending. How IBM will fare in the next 12 to 18 months will depend on what happens with Layer 3 switching, Gigabit Ethernet and applications needing ATM features. The company's objective, in the long run, is to outrun all other competitors in the race to 'virtualize' the desktop, that is, for the Internet or network to run with the speed of a PC bus. Cisco Systems, however, poses as a hindrance to IBM, but IBM still has to contend with a bigger entity, namely, Microsoft., Big Blue faces off against Cisco with a host of new products and partners. With most of the internetworking world fixated on four companies - Cisco, 3Com, Bay Networks and [...]

Network growth, advancements in desktop technology and distributed applications, and changes in performance requirements are fueling the demand for network improvements. Information technology professionals must consider the three factors in network improvement, namely, the need for flexible network structures, compliance with open standards and the creation of network control through robust, end-system-based network management., Our networks may be getting too popular for their own good. How to make sure yours stands up. Four forces are driving the need for network improvements at the workgroup [...]

The Richland Operations of Boeing Information Services is planning to apply asynchronous transfer mode (ATM) to integrate the communication services of the Dept. of Energy Richland Labs' Hanford Nuclear Reservation. This undertaking would transform the voice, data and video systems of Hanford into a unified PC-centered communication system using a multimedia PC. This means that only one set of wires would provide all three data types over a single writing structure, one set of network hardware and software and one management and support function., The Department of Energy's Hanford site plans to put voice, video and data on one network. Here's why. Boeing Information Services' Richland Operations plans to use ATM to consolidate communication [...]

IBM has invested in switching R&D. Its products and strategies for Switched Virtual Networking (SVN), LAN switching and asynchronous transfer mode (ATM) switching are presented. SVN allows the integration of ATM in the evolution of users' application requirements. Some of the challenges facing IBM in relation to ATM include the market's perception of IBM as a latecomer and the confusion about how its NBBS support for variable-length packets fits with the fixed cell structure of ATM., This article focuses on IBM's products and strategies for LAN switching, ATM switching and Switched Virtual Networking for both local and wide area networks. IBM has already invested several hundred [...]

Switch-centric networking is the third wave of networking that has emerged in the 1990s. Asynchronous Transfer Mode (ATM) can be applied to switch-centric networking and is capable of supporting traditional data services, multimedia and multiprotocol end systems. ATM has been widely accepted due to its ability to work in LAN and WAN networked environments, its capability to provide media-speed bandwidth to casual users and 'net-hogs' and its provision for the continued use of preexisting networks such as HPR, SNA and NetBIOS., The private and public networks are poised at their most significant crossroads in over two decades. Over the next few years, enterprise networks of corporations, governments and academic institutions are [...]

Novell Inc. and Microsoft Corp. have introduced their respective gateway products for client-server environments. Novell Inc.'s NetWare for systems application architecture is an integration of NetWare, IBM mainframe and IBM AS/400 runtime environments. It is capable of providing excellent systems network architecture (SNA) connectivity. On the other hand, Microsoft Corp.'s SNA Server is designed to function as a gateway between personal computers and hosts. IT is highly recommended for enteprise networks., The move to client-server requires new ways to reach SNA hosts and data. Gateways are coming in vogue: a close look at two top contenders. The relentless and remarkable improvements [...]

The choice of networking strategies should explore the potential benefits of using an integrated approach that does not exclusively use one mechanism but combines at least two viable systems. The two most popular systems are Advanced Peer-to-Peer Networking (APPN) and Transmission Control Protocol Internet Program (TCP IP). Factors to consider in such an integration are presented., The question isn't whether to integrate your network, it's how to do so - with the least pain. Network managers in both the public and private sectors have been confronted [...]

APPN (Advanced Peer-to-Peer Networking) and TCP/IP (Transmission Control Protocol/Internet Protocol) are popular transport protocols for networked applications. Both transport protocols have network operating system programming and platform-independent network applications. A thorough test of both protocols was performed and the test data is presented in statistical and graph form., 'Cap'n, I'm givin' her all she's got!' Scotty's lament to Captain Kirk is often repeated by internet managers back on earth. TCP/IP and APPN are important transport protocols for networked [...]

It certainly doesn't come as news that TCP/IP will replace SNA as the dominant core enterprise network protocol. The question is no longer if, but how and when. What is [...]

IBM has developed two software enhancements for its 2210 and 2216 routers and for the 3746 Multiaccess Enclosure. The Enterprise Extender and Branch Extender provide access from Internet protocol users into IBM's systems network architecture(SNA)-based host and midrange servers. Furthermore, these enhancements serve as extensions to high-performance routing. Enterprise Extender is well suited to the S/390 Parallel Enterprise Server., IBM recently announced Enterprise Extender and Branch Extender software enhancements for its 2210 and 2216 routers and for the 3746 Multi-access Enclosure. These enhancements extend access from IP clients across [...]