Patent application number | Description | Published |
20110038259 | Priority Policing of Requests with Deferred Determination of Priority Level - Methods and apparatuses, including computer program products, are described for priority policing of requests with deferred determination of priority level. The method includes directing each packet in a data stream to a policer. The method also includes determining whether to allow, reject, or conditionally pass each packet through the policer based on parameters associated with the policer. The method also includes directing each packet conditionally passed by the policer to a classifier associated with the policer. The method also includes determining, by the classifier, a priority value of each packet received from the policer. The method also includes directing, by the classifier, each prioritized packet to the policer. The method also includes determining whether to allow or reject each prioritized packet through the policer based on the priority value. | 02-17-2011 |
20110145639 | Method and Apparatus For Controlling Traffic Entry In A Managed Packet Network - A method for control of real-time traffic entry of a managed packet network includes the step of receiving, from a border element processor, a first message indicative of a new active registration request associated with a client. The border element processor is one of a plurality of border element processors at an edge of a managed packet network controlling packets (e.g., relating to real-time multimedia traffic) entering the managed packet network. The method also includes the step of load balancing, by a load balancing engine, the new active registration request across the plurality of border element processors and assigning the client to a designated border element processor. A second message is generated in response to the new activation registration request. The second message includes a parameter identifying the designated border element processor assigned to the client. | 06-16-2011 |
20110271005 | LOAD BALANCING AMONG VOIP SERVER GROUPS - Described are computer-based methods and apparatuses, including computer program products, for load balancing among VOIP servers. An identity table includes an identity entry for a plurality of servers, each identity entry comprising a FQDN and load balancing information. A persistence table stores persistence entries indicative of a persistent connection between a client and a server. Updated load balancing information determined by the first server is received. The identity table is updated based on the updated load balancing information. A service request is received from a client. If the client is not associated with a persistence entry, a second server is selected from the plurality of servers based on load balancing information for each identity entry in the identity table. A persistence entry is stored indicative of a persistent connection between the client and the selected second server, the persistence entry comprising a FQDN and an identifier for the client. | 11-03-2011 |
20120005250 | Systems and Methods for Recording Communication Sessions - A system for recording a communication session is disclosed. The system includes an edge device configured to receive a message that includes information about the communication session, determine whether to record the communication session based on at least one criterion, and mark the message to indicate that the communication session should be recorded if the at least one criterion is satisfied. The system also includes a signaling entity configured to receive the message from the edge device and, if the at least one criterion is satisfied, direct the message to a recorder configured to record the communication session. | 01-05-2012 |
20120158921 | SYSTEMS AND METHODS FOR HANDLING A REGISTRATION STORM - Systems and methods for user device registration are disclosed. In certain embodiments, at least a first edge device in a group of edge devices enters a mass-restart mode. The first edge device receives a request for registration from a user device and determines whether the user device is currently registered through the first edge device. The first edge device generates a notification associated with the user device if the user device is not currently registered through the first edge device. A second edge device in the group of edge devices receives the notification and determines whether the user device is currently registered through the second edge device based on the notification. Registration information about the user device is deleted from the second edge device if the user device is currently registered through the second edge device. | 06-21-2012 |
20120166626 | Updating Traffic Rate for MSRP Sessions - A system and method is provided for adjusting a traffic rate for a Message Session Relay Protocol (MSRP) session established between two network nodes at a per session level. Each MSRP session has a traffic rate for which MSRP messages are transmitted over the MSRP session. The traffic rate per session can be adjusted, and the adjusted traffic rate per session can be communicated to adjacent nodes. | 06-28-2012 |
20120166656 | Establishing Secure Communications Between Client Computing Devices Located Behind Network Security Devices - Methods and apparatuses, including computer program products, are described for establishing secure communications sessions between computing devices located behind network security devices. The method includes receiving, from a first client computing device, a request for a secure connection with a second client computing device, the request including a first transport protocol role and a first security protocol role associated with the first device. The method includes transmitting the request to the second device. The method includes receiving, from the second device, a response to the request including a second transport protocol role and a second security protocol role associated with the second device, transmitting the response to the first device, and establishing the secure connection between the first device and the second device, where the first and second security protocol roles are determined independently from the first and second transport protocol roles. | 06-28-2012 |
20120281690 | INSERTING OUT-OF-BAND DATA INTO IN-BAND DATA STREAMS - A computer-implemented method for inserting an out-of-band signaling packet into a real-time protocol (RTP) stream is provided. The method includes receiving the out-of-band signaling packet intended for transmission to a user device and forming a synthesized packet based on payload information from the out-of-band signaling packet and header information stored in a data structure describing the RTP stream. The method also includes inserting the synthesized packet into the RTP stream. The method further includes receiving an RTP packet intended for transmission to the user device via the RTP stream, analyzing an insertion sequence number and an insertion flag maintained in the data structure, and discarding or forwarding the RTP packet via the RTP stream based on the analyzing. | 11-08-2012 |
20130054762 | DETERMINING EXPIRATION TIME OF BINDINGS FOR NETWORK ADDRESS TRANSLATION DEVICES - Methods and apparatuses, including computer program products, are described for determining expiration time of bindings for NAT devices. A first device receives a first request including a first source IP address/port pair of a first NAT binding, and transmits a response. The first device receives a second request including a second source IP address/port pair of a second NAT binding, and transmits a response. The first device sets a refresh time T | 02-28-2013 |
20140237089 | SYSTEMS AND METHODS FOR HANDLING A REGISTRATION STORM - Systems and methods for user device registration are disclosed. In certain embodiments, at least a first edge device in a group of edge devices enters a mass-restart mode. The first edge device receives a request for registration from a user device and determines whether the user device is currently registered through the first edge device. The first edge device generates a notification associated with the user device if the user device is not currently registered through the first edge device. A second edge device in the group of edge devices receives the notification and determines whether the user device is currently registered through the second edge device based on the notification. Registration information about the user device is deleted from the second edge device if the user device is currently registered through the second edge device. | 08-21-2014 |