Avaya Inc.

Mukesh Kumar Singh

Srikrishna Kurapati

Sachin Purushottam Joglekar

Satyam Tyagi

Pravin Khandelwal

Chandrasekhar Manchenella

Krishna Sobhan Bhaskar Kokkiligadda

Samrat Saha

Venkatesan Iyengar Prasanna

Guru Thodime

Raghavendra Venkata Thodime

The present invention provides a system, method and apparatus for protecting against high volume attacks. The present invention receives a packet, determines a source of the received packet, and updates a tree-based data structure based on the source of the received packet. The received packet is accepted or passed on whenever one or more statistics stored within the tree-based data structure do not exceed a threshold. The received packet is dropped whenever the one or more statistics exceed the threshold. The present invention can be implemented in hardware, software or a combination thereof. The software will implement the steps as one or more code segments of a computer program embodied on a computer readable medium.

System, method and apparatus for protecting a network or device against high volume attacks

The present invention provides a system, method and apparatus for providing network level and nodal level vulnerability protection in VoIP networks by receiving a communication, filtering the received communication using three or more stages selected from the group comprising a media protection and filtering plane, a policy based filtering plane, a signature based filtering plane, a protocol anomaly detection and filtering plane and a behavioral learning based filtering plane, and either allowing or denying the received communication based the filtering step. The stages are applicable to one or more protocols including SIP, IMS, UMA, H.248, H.323, RTP, CSTA/XML or a combination thereof. In addition, the stages can be implemented within a single device or are distributed across a network (e.g., SIP network, a UMA network, an IMS network or a combination thereof).

System and method for providing network level and nodal level vulnerability protection in VoIP networks

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Hyderabad Telangana, India

Mukesh Kumar Singh