Cisco Technology, Inc.

Ahsan Habib

Keith McCloghrie

Norman William Finn

Stefano Testa

Pere Joan Monclus Argany

Kiran K Toutireddy

Susan Marie Sauter

Hei Tao Fung

Rajan Goyal

Rahul Gupta

Pere Monclus

Shyamasundar S Kaluve

Virgil Nicolae Mihailovici

Kirtikumar L Prabhu

Christophe J Paggen

A system and method for implementing telephony devices in a distributed network environment is disclosed. The present invention provides for voice transmissions to be given a dedicated virtual local area network ('VLAN') for packet transmission and reception to prevent poor quality of service. Non-voice data packets are transmitted on a separate VLAN.

Method for bring-up of voice over internet protocol telephones

A system and method for implementing telephony devices in a distributed network environment is disclosed. The present invention provides for checking data packets to ensure that non-voice data packets are properly tagged to be transmitted on a native virtual local area network ('VLAN'). Voice data packets transmitted on a separate VLAN with a higher priority.

Method for ensuring VLAN integrity for voice over internet protocol telephones

In accordance with one embodiment of the present invention, a method includes receiving a packet at a physical interface of a network security gateway. The packet is tagged with a first VLAN identifier associated with an external network. The method also includes communicating a copy of the packet to a first processor, analyzing the copy of the packet at the first processor to determine whether the packet violates a security condition, and communicating a reply message from the first processor to the interface. The reply message indicates whether the packet violates a security condition. If the packet does not violate a security condition, the method includes re-tagging the packet with a second VLAN identifier associated with a protected network by using a second processor at the physical interface. The method further includes communicating the re-tagged packet to the protected network if the packet does not violate a security condition.

Method and system for network security

A system and method for implementing telephony devices in a distributed network environment is disclosed. The present invention provides for a network switch which provides power to a telephony device adjacently connected thereto.

Method for regulating power for voice over Internet Protocol telephones

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Los Gatos, CA, United States of America

Ahsan Habib