Avaya Inc.

Avaya Communication Israel Ltd.

Avaya Technology LLC

Benny Rodrig

Lior Shabtay

Kurt H Haserodt

Harsh V Mendiratta

Christopher David Baldwin

Luke Anthony Tucker

Dan Gluskin

Ilya Freytsis

Mark T Rolfs

James Douglas Free

Milos Pujić

David S Holland

Lee D Gibbons

Randall Budd Kramer

Bhum Chul Kim

Dicky A Pillai

Ran Ish-shalom

Margaret L Kelley-Johnson

Matthew A Chandler

Michael A Tamny

Dave Sueper

Amerjit Sandhu

Fraser A McKinnon

Ran Ish-Shalom

Methods and systems for supporting the alternate routing of calls between endpoints, such as session initiation protocol (SIP) endpoints, are provided. An inner gateway alternate route (IGAR) application is invoked when the primary, Internet protocol, communication network is overloaded or otherwise unable to handle a call. The IGAR application assigns incoming and outgoing trunks, and serves as a contact point for session managers in routing the trunk call.

Alternate routing of voice calls in a heavily loaded SIP network

Methods and apparatus are provided for allocating resources in a distributed environment, such as a packet network, based on a network assessment. One or more resources are allocated to a request in a distributed environment by identifying one or more potential resources to handle the request; obtaining a network connection assessment between the requester and the one or more potential resources; and assigning at least one of the one or more potential resources to the request based on the evaluation. The network connection assessment can assess, for example, a quality of a network connection between the requester and each of the one or more potential resources or evaluate a topology of the network connection between the requester and each of the one or more potential resources. The one or more resources can be selected based on a score assigned to each of the one or more potential resources.

Methods and apparatus for allocating resources in a distributed environment based on network assessment

A method of determining local multicast information of a local area network (LAN), comprising dividing the LAN to a number of segments larger than the number of virtual LANs (VLANs) in the network and creating a layer-3 multicast routing table, which relates to each of the segments separately.

IP multicast in VLAN environment

The present invention is directed, in various embodiments, to a hardware supported duplication token for arbitrating active and standby module states, a weighted state of health exchange for identifying unhealthy module states and relative module health states, and a packet sequence number synchronization technique for maintaining desired levels of synchronization between the active and standby modules.

Mechanisms and algorithms for arbitrating between and synchronizing state of duplicated media processing components

A method of accelerating the routing of frames by an acceleration switch within a network. The method includes receiving, by the acceleration switch, frames directed to one of one or more routers or switches of the network, determining, for at least some of the received frames, whether the frames belong to a first list of frame groups, defined by values of a plurality of frame parameters, and routing, by the acceleration switch, at least some of the received frames, the routed frames being selected responsive to the determining.

Policy enforcing switch

A method of implementing a distributed algorithm which is based on sending Bridge Protocol Data Units (BPDUs) only between neighboring bridging-devices in a network. The method includes sending BPDUs from a first bridging-device of the network to at least one non-neighboring second bridging-device, and determining a characteristic of the network responsive to the BPDUs.

Creating a spanning tree of a network including clusters

Growing community of inventors

Lexington, MA, United States of America

Benny Rodrig