Juniper Networks, Inc.

Extreme Networks, Inc.

Alcatel-lucent USA Inc.

Rahul Kasralikar

Sandeep Bajaj

Apoorva Jindal

Amit Shukla

Anil Lohiya

Jainendra Kumar

Ramya Olichandran

Steven Xu

Jeffrey Fowler

Amit Srivastav

Rahul Jain

Krishna Sankaran

Prashanth Ishwar

Ram Krishnan

John Rigby

Thippanna Hongal

Ramanaravanan Ramakrishnan

In some embodiments a method includes receiving, at a first network device, a data unit to be sent to second network device via a tunnel, the data unit associated with an application. The method includes appending, to the data unit, an encapsulation header that includes a first portion configured such that the second network device is configured to forward the data unit based on the second portion of the encapsulation header that is configured to identify the application. The method includes sending, from the first network device to the second network device via a first portion of the tunnel, the data unit such that the second network device appends the encapsulation header to the data unit prior to forwarding the data unit via a second portion of the tunnel.

End to end application identification and analytics of tunnel encapsulated traffic in the underlay

A computer-implemented method for increasing the scalability of software-defined networks may include (1) maintaining a set of databases collectively configured to (i) store a set of flow entries that direct network traffic within a software-defined network and (ii) facilitate searching the set of flow entries based at least in part on at least one key whose size remains substantially constant irrespective of the number of flow entries within the set of flow entries, (2) detecting a request to perform an operation in connection with a flow of data packets within the software-defined network, (3) identifying at least one attribute of the flow of data packets in the request, and then (4) searching, using the attribute of the flow of data packets as a database key, at least one database within the set of databases to facilitate performing the operation. Various other methods, systems, and apparatuses are also disclosed.

Systems and methods for increasing the scalability of software-defined networks

A computer-implemented method for interfacing software-defined networks with non-software-defined networks may include (1) receiving at least one packet via software-defined network at a switching device, (2) searching a set of flow entries that collectively direct network traffic within the software-defined network for a flow entry that corresponds to the packet, (3) determining that the packet is destined for a non-software-defined network based at least in part on the search, and (4) forwarding the packet to the non-software-defined network via a logical tunnel that interfaces the software-defined network with the non-software-defined network by connecting a virtual port within the software-defined network to a virtual port within the non-software-defined network. Various other methods, systems, and computer-readable media are also disclosed.

Systems and methods for interfacing software-defined networks with non-software-defined networks

A method for selectively redirecting a data packet to a port on a switching device which is associated with a corresponding network service. In one embodiment, the data packet is redirected to an intrusion prevention service (IPS) for security analysis of the data packet. In another embodiment, the switching device performs a data link layer redirecting of the data packet based at least in part on whether the data packet is to be flooded from the switching device.

Method and mechanism for port redirects in a network switch

Techniques and architectures to dynamically modify policies used to determine how data in switched network traffic is selected for security inspection. One embodiment of the invention modifies policies used to determine how data in network traffic is redirected from a switch to an intrusion prevention system, without the policy modifications interrupting the handling of network traffic by the switch.

Method and apparatus for dynamic anomaly-based updates to traffic selection policies in a switch

A flow identifier is stored in a memory to identify a network flow. The memory is capable of storing multiple flow identifiers for multiple flows. Packet statistics are collected for each of the flows. The packet statistics are compared and a flow identifier is subsequently selected and removed from the memory.

Flexible flow-aging mechanism

A traffic selector table for a network switch is populated with one or more entries that each identifies a tiered service. A traffic flow that matches an entry in the table is identified by the switch. The matched traffic flow is redirected to an intrusion prevention device to determine whether the traffic presents a threat to the network. The switch detects a condition in network traffic flowing through the switch. The traffic selector table is dynamically modified in response to the detected condition.

Automatic tiered services based on network conditions

Path information is obtained in a VPLS-based network by generating special Layer 2 frames (referred to herein as 'trace-request frames'), performing source MAC filtering to identify the trace-request frames, and generating a special frame (referred to herein as a 'trace-reply frame') when the source MAC filtering identifies a trace-request frame. Upon identifying a trace-request frame, path information is collected and embedded into the trace-reply frame. The trace-reply frame is then sent to the originating node where the path information is used to learn the path that the trace-request frame traversed. By sending multiple trace-request frames with different source MAC addresses, path information received from source MAC filtering at different nodes in the VPLS-based network can be collected and used to learn an entire path of interest.

Growing community of inventors

San Jose, CA, United States of America

Rahul Kasralikar