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To: Thomas Mercer-Hursh who wrote (28345)	7/19/2000 4:10:09 PM
From: DownSouth	Respond to of 54805

I had, earlier this week, promised some research on Cisco IPR. Here is a list of the results of a search that I did where the patent is assigned to Cisco Systems: US06081006 Reduced size field effect transistor US06075769 Method and apparatus for network flow control US06072773 Flow control for very bursty connections in high speed cell switching networks US06065062 Backup peer pool for a routed computer network US06058114 Unified network cell scheduler and flow controller US06044081 Bridging and signalling subsystems and methods for private and hybrid communications systems including multimedia systems US06038694 Encoder for producing a checksum associated with changes to a frame in asynchronous transfer mode systems US05991817 Apparatus and method for a network router US05959968 Port aggregation protocol US05898687 Arbitration mechanism for a multicast logic engine of a switching fabric circuit US05872783 Arrangement for rendering forwarding decisions for packets transferred among network switches US05867666 Virtual interfaces with dynamic binding US05854901 Method and apparatus for serverless internet protocol address discovery using source address of broadcast or unicast packet US05852655 Communication server apparatus having distributed switching and method US05835036 Method of encoding data for transmission US05805595 System and method for communicating packetized data over a channel bank US05802042 Autosensing LMI protocols in frame relay networks US05793987 Hot plug port adapter with separate PCI local bus and auxiliary bus US05787255 Internetworking device with enhanced protocol translation circuit US05770950 Minimizing signal reflection along a transmission line without terminating the transmission line US05764641 Early and integrated tail packet discard system US05742604 Interswitch link mechanism for connecting high- performance network switches US05740171 Address translation mechanism for a high- performance network switch US05737526 Network having at least two routers, each having conditional filter so one of two transmits given frame and each transmits different frames, providing connection to a subnetwork US05729546 Expandable communication cell bus for multiplexing and concentrating communication cell traffic onto high speed lines US05691997 Encoder for use in asynchronous transfer mode systems US05678006 Network switch having network management agent functions distributed among multiple trunk and service modules US05666353 Frame based traffic policing for a digital switch US05632021 Computer system with cascaded peripheral component interconnect (PCI) buses US05617421 Extended domain computer network using standard links US05561669 Computer network switching system with expandable number of ports US05519704 Reliable transport protocol for internetwork routing US05509006 Apparatus and method for switching packets using tree memory US05473599 Standby router protocol% US05088032 Method and apparatus for routing communications among computer networks US05598581 Variable latency cut through bridge for forwarding packets in response to user's manual adjustment of variable latency threshold point while the bridge is operating 36 of 2,654,454 patents matched 1-20