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PROTEON ANNOUNCES FURTHER CAPABILITIES IN ITS FOUR-STAGE SNA STRATEGY TO DELIVER THE INDUSTRY'S BEST SNA INTEGRATION

 WESTBOROUGH, Mass., Aug. 16 /PRNewswire/ -- Proteon, Inc. (NASDAQ: PTON), a leader in SNA internetworking, today announced further capabilities that enable the reliable integration of time-sensitive SNA traffic with multi-protocol LAN traffic in enterprise-wide networks. The company announced current development for emerging technologies including IBM's Data Link Switching (DLSw) that will provide a standardized way to handle SNA and LAN traffic. Proteon also announced support for IBM's LAN Network Manager (LNM).
 IBM's Data Link Switching (DLSw) and LAN Network Manager (LNM)
 Proteon will be the first internetworking vendor to deliver Q1'94 support for IBM's DLSw standard currently under design by the DLS Working Group. DLSw delivers SNA session support across TCP/IP. Key features include, route-around link failure, extended source route bridging hop count, reduced WAN overhead through local data link termination (SDLC-LLC2), and NetBIOS name caching. The company also plans to support IBM's APPN Network Node and continues to track IBM's development of the technology.
 "With continued delivery of its Four-phase SNA Integration Strategy revealed in 1991, Proteon is poised to deliver the industry's best SNA internetworking products in a standards-based, solutions-oriented manner. The Four Phase strategy provides a smooth transition for time- sensitive SNA traffic from traditional point-to-point and multidrop leased lines to a meshed multi-protocol backbone," said Karyn Mashima, vice president of corporate marketing.
 "Proteon is on target and well on the way to completing the Third Phase of this strategy by delivering DLSw support," Mashima concluded.
 Today Proteon provides users with the industry's best SDLC Tunneling and SDLC-LLC traffic conversion due to Proteon-unique capabilities that ensure predictable response time for SNA applications through guaranteed Bandwidth Reservation, fast convergence (less than five seconds) with Open Shortest Path First (OSPF) protocol; and ease-of-configuration via Multicast OSPF (MOSPF). Proteon provides SNA Tunneling which encapsulates SDLC traffic in IP for SNA consolidation in an IP network, resulting in ease-of-management and transmission cost savings. The Gateway Network eXchange (GNX) 400 is Proteon's SDLC-LLC conversion device.
 Proteon will support IBM's LNM protocol in its next release of router software, available year-end 1993. This will enable LNM to manage Proteon routers emulating Source Route Bridges from Token Ring networks.
 Proteon further details its ATM strategy by announcing the 1994 delivery of an ATM interface card on its current set of routers, the Corporate Network eXchange (CNX) bridging router family. The company also plans to deliver a Cell Switching Fabric in its next-generation hardware platform to allow for efficient routing of packets.
 "Proteon customers have come to expect internetworking products that incorporate the industry's most highly-advanced technology that will protect their investments, provide for future growth, and give them the best performing, highly-manageable networks," said Paul Toldalagi, vice president and general manager, internetworking systems division. "ATM is definitely a technology that Proteon is committed to supporting as part of its overall product strategy," he said.
 Proteon Advantages in SNA Internetworking; Building Tomorrow's
 Information Highways
 Proteon routers provide industry-leading capabilities including Bandwidth Reservation, OSPF, Multicast OSPF (MOSPF) and Shared Memory hardware architecture, for comprehensive connectivity in organizations integrating mission-critical SNA applications with multi-protocol LANs.
 Bandwidth Reservation
 In Q4 '92, Proteon Internetworking Traffic Management (PITM)(TM) was introduced. PITM is a suite of software tools that currently include NetBIOS filtering, guaranteed Bandwidth Reservation, and the industry's most extensive protocol prioritization scheme. As part of its future router software releases, Proteon will expand the bandwidth management over Frame Relay and X.25.
 Proteon's Bandwidth Reservation is the industry's only guaranteed bandwidth allocation technology that is based on the users' specific protocol patterns that provide network managers with the ability to ensure predictable response times when the network is fully loaded. By assigning guaranteed bandwidth allocations, with 1 percent granularity, and four priority levels for each traffic class (urgent, high, normal and low), Bandwidth Reservation prevents protocol bandwidth "hogging" that results in session time outs. This ensures guaranteed application availability and predictable response time. Another benefit of Proteon's Bandwidth Reservation is the capability for unused bandwidth allocated to one traffic class to be utilized by a neighboring congested traffic class.
 OSPF Link State Routing
 Proteon internetworking products implement the wide-spread industry standard Open Shortest Path First (OSPF) that enables large networks to converge in less than five seconds. By utilizing Link State routing as does IS-IS for OSI and Novell Link Services Protocol (NLSP) for IPX, OSPF is able to find alternate TCP/IP routes instantly with less WAN overhead and greater reliability and predictability.
 Multicast OSPF
 For ease-of-management and lower transmission costs, Proteon routers also implement Proteon-developed Multicast OSPF (MOSPF). This standard protocol provides three main benefits: reduces traffic overhead by replicating multicast messages at the last possible point in the network; simplifies configuration by identifying IP addressable working "groups" as specified by the Internet Group Membership Protocol; and supports video, voice and data applications.
 Shared Memory RISC-Based Architecture
 The CNX/DNX family of bridging routers is ideal in organizations integrating SNA traffic with multi-protocol LANs due to its unique Shared Memory hardware architecture that provides fast, efficient routing of data packets for high performance. Packets entering Proteon routers follow a two-step routing process. Packets are sent to memory until the high-speed processor determines their destination, and are then sent directly to the appropriate port. Compared to a Bus architecture, the Shared Memory approach is more efficient because it saves at least two steps.
 Proteon's Product Family
 Proteon's internetworking product family satisfies the entire breadth of enterprise environments -- headquarters, regional, mid-range, and branch office -- and are all managed through the industry-standard SNMP supported on OneVIEW UNIX and OneVIEW/pc device managers, as well as HP OpenVIEW and NetVIEW 6000 enterprise systems.
 Proteon's internetworking products provide users with highly- interoperable, multi-protocol bridge routing. The product lines include the Corporate Network eXchange (CNX) RISC-based multi-protocol bridging router family -- the CNX 600 high performance backbone router, the CNX 500 regional/divisional-site router and the mid-range CNX 400 router announced today -- and the award-winning Departmental eXchange Network (DNX) 300 branch office bridging router family -- the DNX 300i for IBM environments, DNX 300n for Novell sites and DNX 300m for multi-protocol remote sites.
 With 200+ development years and market-proven technology, Proteon's Transportable Software Architecture (TSA) is applied across all of Proteon's bridging router product lines, supporting more than 18 protocols and offering users maximum application flexibility. Bridging support includes Proteon's Any-to-Any Bridging, Adaptive SRT (ASRT)(TM), a superset of Transparent Bridging, Source Route Bridging, the IBM 8209- compatible SR-TB bridging, and the latest SRT standard bridging. ASRT delivers worry-free network design due to its capability to integrate new bridge types in any type of bridged environment without having to reconfigure end points.
 To ease the integration of SNA into the multi-protocol network, Proteon provides the Gateway Network eXchange (GNX) 400 for SDLC-to-LLC traffic conversion, and the ProNET BOSS (Branch Office SolutionS), a remote-site integrated bridging router/hub that supports both Ethernet and Token Ring networks.
 Proteon also provides Proteon and third-party device management with its SNMP-based OneVIEW network management product line, available for both UNIX and DOS/Windows operating systems. Proteon is committed to port SNMP-based router applications to Hewlett-Packard's OpenVIEW and IBM's NetVIEW/6000 network management platforms.
 Proteon has a worldwide sales and service organization with strong distribution and service partners.
 Proteon delivers networking and internetworking solutions that provide customers with reliable networks for mixed IBM and multi- protocol environments. Providing industry-leading SNA interconnectivity that works, Proteon products span the enterprise to meet the needs of headquarters, mid-range and branch office networks. Proteon product families include a full line of multi-protocol bridging routers, Token Ring and Ethernet intelligent hubs, integrated network management, wire centers and award-winning high performance Token Ring adapter cards.
 -0- 8/16/93
 /CONTACT: Joe Grillo or Karin Bakis of Proteon, Inc., 508-898-2800; David Copithorne or David Kitchen of Copithorne & Bellows, 617-252-0606, for Proteon/
 (PTON)


CO: Proteon, Inc. ST: Massachusetts IN: CPR SU: PDT

DJ -- NE008 -- 3048 08/16/93 11:57 EDT
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Date:Aug 16, 1993
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