H04L12/891

EXPLICIT CONTROL OF AGGREGATION LINKS VIA IS-IS
20170295089 · 2017-10-12 ·

A process is implemented by a network device for enabling the provisioning of explicit trees in a network by reporting link aggregation group (LAG) configuration information to a path computation element (PCE). The network device implements a LAG module and an intermediate system-intermediate system (IS-IS) module that includes an IS-IS path control and reservation module (ISIS-PCR). The process includes reporting LAG configuration by the LAG module to the IS-IS module within the network device, sending a link state protocol data unit (PDU) (LSP) with the LAG configuration in a LAG sub type length value (TLV) by the ISIS-PCR, receiving, by the IS-IS module, an explicit tree that specifies at least one virtual local area network (VLAN) identifier (VID) to an aggregation link of the LAG assignment, and translating, by the ISIS-PCR module, the explicit tree into a LAG configuration, the LAG configuration specifying a conversation to aggregation link assignment.

Autonomic ingress traffic load balancing in link aggregation groups by modification of switch routing

Mechanisms are provided for performing traffic load balancing on ingress traffic directed to a Link Aggregation Group (LAG). The mechanisms monitor a ingress traffic load across a plurality of links of the Link Aggregation Group (LAG). The mechanisms determine if the ingress traffic load across the plurality of links is unbalanced. Moreover, the mechanisms, in response to determining that the ingress traffic load across the plurality of links is unbalanced, send a message to a switch associated with the LAG requesting the switch to modify routing of ingress traffic to the LAG to perform ingress traffic load balancing.

Method and system for information interaction among systems in the same end in DRNI

Disclosed are a method and system for information interaction between systems in a same portal in a distributed resilient network interconnection, wherein the method is applied to each system in an portal in a link aggregation group, including: sending a distributed relay control protocol (DRCP) message through an intra-portal interface, wherein at least system information of a present system is carried; after receiving a DRCP message sent by an adjacent system, if it is determined that the present system and the adjacent system can form one portal in the distributed resilient network interconnection, determining an operational Key value of the present system. The system includes: a sending state machine, a receiving state machine, a negotiating state machine, a synchronizing state machine and a periodic sending state machine.

Device and method for characterization and optimization of multiple simultaneous real-time data connections

A computer implemented system is provided for improving performance of transmission in real-time or near real-time applications from at least one transmitter unit to at least one receiver unit. The system includes an intelligent data connection manager utility that generates or accesses performance data for two or more data connections associated with the two or more communication networks, and based on the current performance data determining current network transmission characteristics associated the two or more data connections, and bonds the two or more data connections based on: a predetermined system latency requirement; and dynamically allocating different functions associated with data transmission between the two or more data connections based on their respective current network transmission characteristics. The data connection manager utility then manages dynamically the transmission of relatively large data sets across the two or more bonded or aggregated data connections in a way that meets the system latency requirement and improves performance in regards to other network performance criteria (including data transfer rate, errors, and/or packet loss). Related computer implemented methods are also provided.

Implementation method for application for speaking right of LTE-based broadband trunking system

A method for implementing the application for speaking right of a Long Term Evolution (LTE)-based broadband trunking system, a Mobility Management Entity (MME), a network subsystem, a broadband wireless access subsystem and the LTE-based broadband trunking system are disclosed. The method includes: the broadband wireless access subsystem sending a trunking speaking right update request to the network subsystem, receiving the trunking speaking right update accept message returned by the network subsystem, and sending the trunking speaking right update accept message to a speaking right seizing terminal; and the broadband wireless access subsystem receiving the speaking right occupation prompt message sent by the network subsystem, and sending the trunking speaking right occupation prompt message and updated configuration information via a multicast control channel of an enhanced Multimedia Broadcast Multicast Service (eMBMS).

TOPOLOGY-BASED VIRTUAL SWITCHING MODEL WITH PLUGGABLE FLOW MANAGEMENT PROTOCOLS
20170279676 · 2017-09-28 · ·

The disclosure relates to technology for supporting multiple flow management protocols in a virtual network switch and changing a flow management protocol without changing switch topology configurations at run time. A data plane provider is detected via a pluggable software module (or plugin or plugin module) that identifies and controls the data plane provider with network interfaces and enables flow management protocols. A switch topology is then constructed by creating a virtual switch object, adding ports to the virtual switch object. A datapath is then created using the switch topology and the first flow management protocol on the data plane provider. Network interfaces are connect to each ports respectively to enable communication among the entities attached to each network interface according to the first flow management protocol. The datapath can be later changed to use the second flow management protocol and retain the same topology at run time.

Server provisioning based on job history analysis
09819547 · 2017-11-14 · ·

A system includes a runbook manager configured to generate a runbook governing future server provisioning jobs, based on analyzed job history. The runbook manager includes a history analyzer configured to analyze a job history for a plurality of provisioning jobs performed to provision a plurality of servers, to thereby obtain the analyzed job history.

A Wireless Local Area Network (WLAN) Node, a Wireless Device, and Methods Therein
20170272368 · 2017-09-21 ·

A wireless local area network, WLAN, node (400) is adapted to be comprised in an integrated wireless communications network comprising a WLAN and a cellular communications network. The WLAN node (400) comprises a receiving module (401) adapted to receive traffic data from a wireless device. A differentiation module (403) is adapted to determine whether the received traffic data relates to a first traffic type which is to be routed locally within the WLAN or a second traffic type which is to be routed to the cellular communication network. A processing module (405) is adapted to control the handling of the traffic data according to whether the traffic data is determined as relating to the first traffic type or the second traffic type.

Enabling Resilient Microgrid Through Ultra-Fast Programmable Network

Systems and methods for integrating ultra-fast programmable networks in microgrid are disclosed to provide flexible and easy-to-manage communication solutions, thus enabling resilient microgrid operations in face of various cyber and physical disturbances. The system is configured to establish a novel software-defined networking (SDN) based communication architecture which abstracts the network infrastructure from the upper-level applications to significantly expedite the development of microgrid applications, develop three functions of the SDN controller for microgrid emergency operations, including time delay guarantee, failover reconfiguration and rate limit and create a hardware-in-the-loop cyber-physical platform for evaluating and validating the performance of the presented architecture and control techniques.

PACKET PROCESSING TECHNIQUE FOR A COMMUNICATION NETWORK

A method performed by a network element that transfers first and second packet flows of the same traffic handling class comprises the step of receiving, from a network controller, information defining a relative forwarding order between first and second packet flow packets. Upon receipt, at least one ingress port of the network element, of a first and a second packet, determining that the first packet belongs to the first packet flow and the second packet to the second packet flow. The first and second packets will then be forwarded towards at least one egress port of the network element in an order defined by the information received from the network controller.