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| Number | Title | Issue Date |
| 7293094 | Method and apparatus for providing end-to-end quality of service in multiple transport protocol environments using permanent or switched virtual circuit connection management A method and apparatus for ensuring end-to-end QoS for user applications operating in multi-transport protocol environments while using PVC or SVC connection management procedures. A user application at a workstation having specific QoS requirements can selectively ... | 11/06/2007 |
| 7082101 | Method and apparatus for protection switching in virtual private networks Protection switching of a virtual private network is provided whereby working VPN paths and protection VPN paths are defined. The working VPN path is monitored for increased data traffic and failures, and in response, data is switched from the working VPN path to th... | 07/25/2006 |
