| 1 2 |
| Patent ID | Title | Date Filed |
| 6922793 | Method for recovering from malfunctions in an agent module of a modular network device
| February 14, 2002 |
| 6914879 | Network element with redundant switching matrix
| October 13, 2000 |
| 6914878 | Fault detection in multi-plane switch
| October 16, 2000 |
| 6912221 | Method of providing network services
| January 4, 2000 |
| 6912197 | System and method for implementing redundancy for multilink point to point protocol
| November 22, 2002 |
| 6894970 | Router switch fabric protection using forward error correction
| October 31, 2000 |
| 6885635 | High capacity router having redundant components
| November 21, 2000 |
| 6882653 | Gateway system having controller and signal processor for interconnecting IP network and telephone network and method for controlling alternative routing at the time of fault of gateway system
| August 30, 2000 |
| 6810010 | Redundant LAN system, active line/stand-by line switching method, and recording medium
| April 13, 2000 |
| 6798740 | Method and apparatus for switch core health monitoring and redundancy
| March 13, 2000 |
| 6791940 | Method and apparatus for data transmission control in a computer network environment
| August 28, 2000 |
| 6791939 | Dynamic generation of deadlock-free routings
| June 2, 1999 |
| 6778490 | Method and apparatus for a fault tolerant router architecture
| May 19, 1999 |
| 6775298 | Data transfer mechanism for handheld devices over a wireless communication link
| August 12, 1999 |
| 6751191 | Load sharing and redundancy scheme
| June 29, 1999 |
| 6728535 | Fail-over of forward link equipment
| May 2, 2001 |
| 6690644 | Mechanism for 1:1, 1+1, and UPSR path-switched protection switching
| February 17, 1999 |
| 6687217 | Method of and system for one plus one protection for radio equipment
| May 4, 1999 |
| 6671253 | Method and system for providing peer redundancy to asynchronous transfer mode emulated local-area networks
| September 21, 1999 |
| 6665263 | VP protection system and VP protection method
| August 12, 1999 |
| 6661786 | Service message system for a switching architecture
| May 20, 1999 |
| 6658595 | Method and system for asymmetrically maintaining system operability
| October 19, 1999 |
| 6639895 | Fault tolerant network switch
| October 5, 1998 |
| 6621515 | System and method for routing video calls
| October 31, 2001 |
| 6597657 | Unit and method for duplex call control for SVC connection
| January 6, 2000 |
| 6597656 | Switch system comprising two switch fabrics
| May 24, 1999 |
| 6594231 | Method and apparatus for configuration of stackable units in packet-based communications systems
| August 6, 1999 |
| 6594229 | Data synchronization system for redundant packet routing architecture and method of operation
| December 14, 1999 |
| 6570844 | System and method for providing redundancy in a telecommunications system
| December 28, 1998 |
| 6535479 | Hitless switching system of ATM switch apparatus in which discard priority control is stopped
| November 23, 1998 |
| 6487169 | Cell switch module with unit cell switching function
| June 7, 1999 |
| 6477141 | Communication path quality monitoring method and quality monitoring apparatus
| March 2, 1999 |
| 6473396 | Use of logical addresses to implement module redundancy
| January 4, 1999 |
| 6449250 | Method for switching central device and a cable modem system using the same
| October 13, 1998 |
| 6445678 | Method and apparatus for implementing leaf node proxy in a network
| December 7, 1999 |
| 6442133 | Switchboard having a dual switching system
| May 23, 2001 |
| 6411599 | Fault tolerant switching architecture
| December 2, 1998 |
| 6400718 | Cell switching device capable of effecting hit-less switching between an active system and a standby system
| May 14, 1999 |
| 6366558 | Method and apparatus for maintaining connection state between a connection manager and a failover device
| June 30, 1998 |
| 6359858 | Switching redundancy control
| June 3, 1999 |
| 6343068 | Guard apparatus for avoiding malfunction in optical communication system
| September 16, 1998 |
| 6330221 | Failure tolerant high density dial router
| June 18, 1998 |
| 6298040 | Data link layer processor system for a local exchange system
| July 1, 1998 |
| 6269077 | ATM link switching over method and apparatus
| June 25, 1998 |
| 6269076 | Method of resolving split virtual LANs utilizing a network management system
| May 28, 1998 |
| 6229787 | Mechanism to achieve very fast failover in ATM backbone networks using multi-homed circuits
| November 25, 1996 |
| 6226261 | Redundant switching arrangement
| August 28, 2000 |
| 6202170 | Equipment protection system
| July 23, 1998 |
| 6188667 | Transport interface for performing protection switching of telecommunications traffic
| February 5, 1999 |
| 6172782 | Output port switching device in N-WDM system
| May 15, 1998 |
| 1 2 |