Drivenets Ltd.

At&t Services, Inc.

Amir Krayden

Evgeny Sandler

Yuval Moshe

Gal Zolkover

Or Sadeh

Ori Zakin

Anton Gartsbein

Yuval Lev

Alexander Zilberman

Ido Susan

Chen Goldenberg

Eliezer Kosharovsky

Ron Cohen

Gregory Freilikhman

Yehonatan Lemberger

Eli Fedida

A distributed routing system is provided for use in a communication network, wherein the distributed routing system includes at least one cluster comprising a plurality of cluster elements and characterized in that the cluster elements that are used for forwarding communication traffic from among the plurality of cluster elements are synchronized there-between to a single clock and then synchronized to an external communication element, such as a client clock. Optionally, all the cluster elements that are used for forward communication traffic, are configured to implement IEEE 1588 standard and/or Synchronous Ethernet (Sync-E).

Synchronization in distributed communication systems

A distributed routing system is provided for use in a communication network. The distributed routing system comprises a plurality of forwarding modules and a plurality of fabric modules. At least one counter located at at least one respective fabric module is configured to receive data relating to the number of packets being forwarded via physical and/or logical interfaces associated with at least two of the plurality of forwarding modules.

Processing data in a distributed routing system

A network cloud software is provided which is configured to enable operation of multiple hardware network elements as a single routing or switching entity. The network cloud software is used in a distributed manner and provides layers of synchronization and management to allow creation of a network cloud cluster that can start with a single white-box that acts as a stand-alone network device and then scale it to a cluster of tens of hardware elements that would still appear to the external user as a single entity. The network cloud software may also implement mediation layer (HAL) that allows the use of a multi-vendor hardware types by the same network cloud software that is capable of running on a number of different hardware types, while to the external user they will all be seen as devices that have the same functionality and the same network behavior.

System and a method for using a network cloud software

A network processing element and method for using it, are provided for use in a cluster comprising a plurality of network processing elements, wherein the network processing element is configured to enable provisioning of a plurality of different services, wherein the network processing element is configured to store state data associated with one or more functions required for carrying out each of the plurality of different services, and wherein the network processing element is further configured to provide a service or part thereof, based on the state data associated the network processing element's processing resources required for carrying out one or more functions in the provisioning of the requested service.

Virtualization of multiple network functions in high-scale routing

A method for executing instructions embedded in two threads stored in a system including two operating units and a virtual managing entity for holding queues for virtual objects (VO) waiting to use a respective operating unit and diverting them between queues. Each VO is associated with two virtual timers, one measuring a time period during which the VO is held in the queue (TIQ) and the other providing time period during which the VO will remain in an alive state (TTL). The method includes receiving information relating to VOs associated with the two threads; operating on VOs for which their TTLs have expired; upon emerging from its respective queue, determining whether each VO should be diverted to another queue; upon diverting the VO, resetting its TIQ timer; and allocating an access time to each VO based on a number of threads requiring that VO and the TIQ associated therewith.

System implementing multi-threaded applications

A communication router, adapted for use in an Open Shortest Path First (OSPF) protocol compliant communication network, is provided. The communication router comprises processing means configured to automatically adjust the communication router's cost metrics set for forwarding communication traffic via at least one link that extends between that communication router and a respective adjacent neighboring router. The cost metrics is adjusted in compliance with costs determined by the respective adjacent neighboring router for forwarding traffic from the respective adjacent neighboring router along that link.

Device and a system for OSPF cost metrics mirroring

A physical network element is provided which is configured to operate as a plurality of separated routing entities, each functioning independently of the others, wherein the physical network element is characterized in that: a) each of the plurality of routing entities is provided with its own control, management and data planes, as well as with a dedicated routing information base table and a forwarding information base table; and b) all of the plurality of routing entities are configured to operate while sharing at least one member of a group that consists of: (i) one or more packet processors comprised in the physical network element; (ii) one or more central processing units (CPUs) comprised in the physical network element; (iii) one or more fabrics comprised in the physical network element; and (iv) one or more network interfaces comprised in the physical network element.

Platform comprising a plurality of routing entities

A method for use in a communication network is provided. The method comprises the steps of: (i) providing a plurality of network processing units (NPU's) comprised in the communication network; (ii) establishing a replication of at least one of the NPU's; (iii) virtually arranging the NPU's and the replication(s) in a ring configuration; (iv) associating a unique primary virtual identification and a corresponding unique backup virtual identification with each active and available entity selected from among the plurality of NPU's and replication(s); (v) establishing a list of hash values, each associated with the primary virtual identification or the backup virtual identification of a corresponding active and available entity; (vi) implementing a ring consistent hashing algorithm for carrying out a search resolution for a consistent hashing; and (vii) in a case of a change in an active and available entity having a certain primary virtual identification, using the corresponding backup virtual identification to maintain the ring continuity.

Method for implementing a consistent hashing in a communication network

A communication system comprising at least one smart network interface card ('NIC') provided with a logic/programmable processor and a local memory, and a computing element, wherein a communication bus is used to connect said smart NIC and said computing element to enable forwarding data there-between, wherein the system is characterized in that said smart NIC is configured to receive data packets, to extract data therefrom and to forward less than all data comprised in the received data packets, to said computing element along said communication bus, and wherein the forwarded data comprises data which is preferably required for making networking decisions that relate to that respective data packet.

Method and device for improving bandwidth utilization in a communication network

A network element is provided, configured to operate in an IP-based communication network and to manage resources in that communication network which are being utilized by a software application. The management of these resources is carried out by the network element (e.g. a router) through affecting changes in these resources in response to obtaining information retrieved from an application program interface (API) associated with the software application, such as for example, values of key performance indicators (KPIs) associated with the software application.

Network aware element and a method for using same

A parallel-processing computer system is provided for parallel processing of data packets conveyed in a communication network. The system comprises: a memory; a plurality of processing elements; and a program stored at the memory for execution by the plurality of processing elements. The at least one program comprises instructions for: receiving one or more data packets comprising operational instructions from an application; establishing a pipeline element for carrying out a service process, which comprises a plurality of sub-pipelines, each associated with a respective task required for carrying out the service process and wherein each of the plurality of processing elements is operative for carrying out tasks associated with a respective sub-pipeline belonging to the plurality of sub-pipelines; and executing simultaneously by the plurality of processing elements, tasks associated with the plurality of sub-pipelines, wherein the plurality of processing elements is implementing a parallel processing of each data packet.

Parallel information processing on multi-core computing platforms

A sub-system is described which is operative to be used as a virtual Provider Edge (v PE) cluster of an SDN communication system. The sub-system comprises a plurality of network elements, wherein the v PE cluster further comprises one or more virtual routing engines for routing traffic to/from the plurality of network elements, the one or more virtual routing engines are configured to communicate with a managing entity and with a plurality of virtual forwarding engines, and wherein the managing entity is configured to manage operation of the one or more virtual routing engines and the plurality of virtual forwarding engines. According to another aspect, the sub-system comprises a plurality of network elements and a managing entity, wherein the network elements having each one or more ports to convey traffic therethrough, and wherein at least one of the ports associated with the sub-system is configured to serve a plurality of customers.

Virtual provider edge cluster for use in an SDN architecture

An SDN communication system comprising a plurality of White Boxes and a plurality of servers, characterized in that all traffic to/from a plurality of mobile elements, to/from a plurality of broadband communication elements and to/from enterprises, is forwarded after it has been re-arranged based on pre-defined criteria via a single unified cloud, and wherein the unified cloud extends from a plurality of users to a core network, covering a Last Mile network, a Metro network and an Edge network.

Growing community of inventors

Even Yehuda, Israel

Amir Krayden