Patent application number | Description | Published |
20080205265 | TRAFFIC ROUTING - A method may include forming a primary label switching path (LSP) from a first node to a second node, where the primary LSP has a path metric that is less than a predetermined value. The method may also include detecting a failure in the primary LSP and identifying a second path from the first node to the second node that has a path metric that is less than the predetermined value. The method may further include routing data via the second path in response to the failure in the primary LSP. | 08-28-2008 |
20090086643 | PATH TESTING AND SWITCHING - A method may include forming a first path from a first node to a second node and transmitting data via the first path. The method also includes measuring a performance parameter associated with transmitting data via the first path and determining whether the measured performance parameter meet a required performance parameter. The method also includes sending a notification to a customer associated with the first path when the measured performance parameter does not meet the required performance parameter, where the notification indicates that the first path is unavailable. | 04-02-2009 |
20090103448 | APPARATUS, METHOD AND COMPUTER-READABLE STORAGE MEDIUM FOR CALCULATING THROUGHPUT REQUIREMENTS OF A NETWORK - An apparatus, method and computer-readable storage medium are provided for calculating an estimated throughput requirement of a network, such as to facilitate selecting the minimum bandwidth, maximum bandwidth or some other appropriate bandwidth for providing network services to a customer accessing that network. In this regard, a method of calculating a throughput requirement of a network includes receiving a bandwidth requirement. The method also includes calculating a data link-layer frame rate requirement based on the bandwidth requirement and a frame size, where the calculated frame rate requirement is limited by a line rate for transmission of data packets across a core network. In addition, the method includes calculating a data link-layer throughput requirement based on the calculated frame rate requirement and the frame size. | 04-23-2009 |
20090113071 | Methods and Systems for Providing Efficient Provisioning of Data Flows - A system and method may include receiving a new flow request, the new flow request for requesting provisioning of a flow between a computer and the server, identifying a path of one or more network elements between the computer and the server, and determining whether provisioning the flow between the computer and the server violates a constraint. The system and method may further include updating an oversubscription factor and available bandwidth for an interface of each of the one or more network elements in the event the constraint is not violated, and determining whether a second path exists between the computer and the server in the event the constraint is violated. | 04-30-2009 |
20090129289 | SYSTEM, METHOD AND COMPUTER-READABLE STORAGE MEDIUM FOR CALCULATING ADDRESSING AND BANDWIDTH REQUIREMENTS OF A NETWORK - Apparatuses, methods and computer-readable storage mediums are provided for calculating estimated addressing and bandwidth requirements of a customer domain, such as to facilitate designing the respective domain. A method includes selecting customer premises equipment (CPE) of a domain including a plurality of CPEs, where each CPE includes one or more devices, and one of the one or more devices include an interface with which the domain communicates with the respective CPE. The method also includes determining if the interface of the selected CPE comprises a router, and calculating an addressing requirement of the selected CPE, where the addressing requirement includes a number of device addresses for the selected CPE. The method may additionally or alternatively include analyzing traffic patterns of the selected CPE with respect to one or more other CPEs, and based on the analysis, calculating a bandwidth requirement of the selected CPE. | 05-21-2009 |
20100002580 | METHOD AND SYSTEM FOR PROVIDING AUTO-BANDWIDTH ADJUSTMENT - An approach is provided for auto-bandwidth adjustment of allocated bandwidth for a traffic tunnel over a network. A determination is made regarding a traffic load over the tunnel, where the tunnel meters traffic in accordance with the bandwidth allocation. A determination is made regarding whether the traffic load triggers an adjustment threshold, where the adjustment threshold is set to provide a desired headroom below the bandwidth allocation. And the bandwidth allocation is adjusted when the adjustment threshold is triggered to provide the desired headroom between the adjusted bandwidth allocation and the traffic load. | 01-07-2010 |
20100002724 | METHOD AND SYSTEM FOR ADJUSTING BANDWIDTH USING MULTIPLE TIMERS - An approach is provided for auto-bandwidth adjusting bandwidth allocations for traffic-engineered tunnels used to carry traffic along a network. Traffic over the tunnel is sampled at a first interval period and at a second interval period, where the second interval period is shorter than the first interval period. A determination is made as to whether the sampled traffic taken using the second interval period is greater than the bandwidth allocation, and the bandwidth allocation is adjusted upward based upon a determination that the sampled traffic taken using the second interval period is greater than the bandwidth allocation. Also, a determination can be made as to whether the sampled traffic taken using the first interval period is less than the bandwidth allocation, and the bandwidth allocation can be adjusted downward based upon a determination that the sampled traffic taken using the first interval period is less than the bandwidth allocation. | 01-07-2010 |
20100039957 | SYSTEM AND METHOD FOR MONITORING AND ANALYZING NETWORK TRAFFIC - An approach is provided for monitoring and analyzing network traffic. Traffic is monitored during a configurable time interval. A number of bursts associated with the traffic are tracked. A measured traffic rate is generated based on the number of bursts occurring within the time interval. The measured traffic rate is compared with a committed rate to determine if the measured traffic rate exceeds the committed rate. | 02-18-2010 |
20100040368 | METHOD AND SYSTEM FOR MANAGING OFF-NET VIRTUAL CONNECTIONS - An approach is provided for managing off-network virtual connections. A first management channel is mapped to a second management channel for transport of management information over an optical time-division-multiplexing (TDM) network that includes an off-network portion. The off-network portion corresponds to a third party provider. The first management channel corresponds to an electrical connection and the second management channel corresponds to an optical connection. | 02-18-2010 |
20100061721 | METHOD AND SYSTEM FOR ADJUSTING NETWORK INTERFACE METRICS - An approach is provided for adjusting network interface metrics to optimize transmissions across a network. A measurement of performance of a network interface is made, wherein the network interface is configured to provide traffic across an optical network. A determination is made regarding whether the measured performance satisfies a predetermined threshold. A network metric value of the network interface is adjusted if the measured performance of the network interface satisfies the predetermined threshold. | 03-11-2010 |
20100095167 | METHOD AND SYSTEM FOR PROVIDING BIT ERROR RATE CHARACTERIZATION - An approach is provided for bit error rate characterization. A test signal representing one or more Ethernet frames exhibiting a particular bit error rate is generated. The test signal is output to a device under test. Traffic is received from the device under test. A determination is made as to whether a link failure condition exists at a port on an Ethernet switch. | 04-15-2010 |
20100246409 | DISABLED STATE AND STATE SIGNALING FOR LINK AGGREGATION - A device enables a disabled timer state for a link aggregation group (LAG) link if a disabled timer condition is determined for the LAG link, and enables a disabled state for the LAG link if a disabled condition is determined for the LAG link in the disabled timer state. | 09-30-2010 |
20110058487 | MONITORING LINK AGGREGATION LINKS - A device detects a signal condition for a link aggregation group (LAG) link, compares the detected signal condition to a signal threshold range, and enables one of a disabled state or a disabled timer state for the LAG link if the detected signal condition is outside the signal threshold range. | 03-10-2011 |
20110090802 | PATH TESTING AND SWITCHING - A method may include forming a first path from a first node to a second node and transmitting data via the first path. The method also includes measuring a performance parameter associated with transmitting data via the first path and determining whether the measured performance parameter meet a required performance parameter. The method also includes sending a notification to a customer associated with the first path when the measured performance parameter does not meet the required performance parameter, where the notification indicates that the first path is unavailable. | 04-21-2011 |
20110116384 | NETWORK CONNECTIVITY MANAGEMENT - Network connectivity management includes monitoring a pathway, wherein the pathway is configured to carry a circuit between multiple networks via a provider core network. A determination is made regarding whether the pathway is experiencing a connectivity issue. When it is determined that the pathway is experiencing a connectivity issue, then a message is generated indicating that the circuit is down. | 05-19-2011 |
20110116385 | NETWORK CONNECTIVITY MANAGEMENT - Network connectivity management includes monitoring a circuit, wherein the circuit is a virtual connection between multiple networks via a provider core network. A device receives a plurality of network management messages associated with the circuit, and a determination is made regarding whether the circuit is experiencing a connectivity issue based on the network management messages. When it is determined that the circuit is experiencing a connectivity issue, then certain actions can be initiated. | 05-19-2011 |
20110134767 | MEASURING ENCAPSULATION OVERHEAD AND TRANSPORT BANDWIDTH IN FRAME-BASED TRANSPORT - A system measures, at a network device, a first frame rate of frame-based transport based on a first frame size, and measures, at the network device, a second frame rate of the frame-based transport based on a second frame size, where the second frame size is different than the first frame size. The system determines per frame encapsulation overhead in the frame-based transport using the first frame rate, the first frame size, the second frame rate, and the second frame size. The system further determines total transport bandwidth associated with the frame-based transport using the first frame rate, the first frame size, the second frame rate, the second frame size, and the determined per frame encapsulation overhead. | 06-09-2011 |
20110141922 | ESTIMATING DATA THROUGHPUT - A method may include transmitting a first data burst and a second data burst to a circuit or network under test, the first data burst having a smaller size than the second data burst. The method may also include determining a first latency associated with the first data burst based on time information associated with the first data burst and determining a second latency associated with the second data burst based on time information associated with the second data burst. The method may further include calculating an estimated throughput of the circuit or network under test based on a difference in the first and second latencies, a difference in size for the first and second data bursts, and a first data rate at which the first and second data bursts were transmitted. | 06-16-2011 |
20110149747 | METHOD AND SYSTEM FOR PROVIDING BIT ERROR RATE CHARACTERIZATION - An approach is provided for bit error rate characterization. A test signal representing one or more Ethernet frames exhibiting a particular bit error rate is generated. The test signal is output to a device under test. Traffic is received from the device under test. A determination is made as to whether a link failure condition exists at a port on an Ethernet switch. | 06-23-2011 |
20110261694 | METHOD AND SYSTEM FOR PROVIDING AUTO-BANDWIDTH ADJUSTMENT - An approach is provided for auto-bandwidth adjustment of allocated bandwidth for a traffic tunnel over a network. A determination is made regarding a traffic load over the tunnel, where the tunnel meters traffic in accordance with the bandwidth allocation. A determination is made regarding whether the traffic load triggers an adjustment threshold, where the adjustment threshold is set to provide a desired headroom below the bandwidth allocation. And the bandwidth allocation is adjusted when the adjustment threshold is triggered to provide the desired headroom between the adjusted bandwidth allocation and the traffic load. | 10-27-2011 |
20110268437 | BIT ERROR GENERATION SYSTEM FOR OPTICAL NETWORKS - A system may include an optical bit error generator comprising a high instantaneous power light source. An optical coupler may couple an output of the optical bit error generator to a traffic fiber. A device under test receives a traffic signal via the traffic fiber. A performance monitor is coupled to the device under test to determine responsiveness of the device under test to a bit error condition simulated by the optical bit error generator, wherein the high instantaneous power light source in the optical bit error generator is configured based on a protocol of a traffic signal in the traffic fiber and the bit error condition. | 11-03-2011 |
20110292787 | DISABLED STATE AND STATE SIGNALING FOR LINK AGGREGATION - A device enables a disabled timer state for a link aggregation group (LAG) link if a disabled timer condition is determined for the LAG link, and enables a disabled state for the LAG link if a disabled condition is determined for the LAG link in the disabled timer state. | 12-01-2011 |
20110299420 | SYSTEM, METHOD AND COMPUTER-READABLE STORAGE MEDIUM FOR CALCULATING ADDRESSING AND BANDWIDTH REQUIREMENTS OF A NETWORK - Apparatuses, methods and computer-readable storage mediums are provided for calculating estimated addressing and bandwidth requirements of a customer domain, such as to facilitate designing the respective domain. A method includes selecting customer premises equipment (CPE) of a domain including a plurality of CPEs, where each CPE includes one or more devices, and one of the one or more devices include an interface with which the domain communicates with the respective CPE. The method also includes determining if the interface of the selected CPE comprises a router, and calculating an addressing requirement of the selected CPE, where the addressing requirement includes a number of device addresses for the selected CPE. The method may additionally or alternatively include analyzing traffic patterns of the selected CPE with respect to one or more other CPEs, and based on the analysis, calculating a bandwidth requirement of the selected CPE. | 12-08-2011 |
20120170467 | METHOD AND APPARATUS FOR PROVIDING VIRTUAL CIRCUIT PROTECTION AND TRAFFIC VALIDATION - An approach provides virtual circuit protection. Traffic is received at a network interface device configured to interface an Ethernet virtual circuit of a service provider transport network over a user network interface (UNI). The network interface device is configured as a demarcation point between a customer network and the service provider transport network. Circuit replication is performed over the virtual circuit to create a plurality of communication paths over the virtual circuit by assigning respective tags for independently switching the traffic over the communication paths. One of the communication paths is designated as a standby communication path. | 07-05-2012 |
20130128750 | FAULT SIGNALING FOR ETHERNET - A method may include receiving a message from a first Ethernet interface in a second Ethernet interface, wherein the message includes a first attribute indicative of an Ethernet service at the first interface according to a first operation, administration, or management (OAM) protocol. The method may further include mapping the first attribute to a second attribute, wherein the second attribute is in accordance with a second OAM protocol different than the first OAM protocol. The method may further include performing an operation at the second interface based on the second attribute. | 05-23-2013 |
20130194932 | CARRIER ETHERNET SERVICE BANDWIDTH ALLOCATION SYSTEMS AND METHODS - Exemplary carrier Ethernet service bandwidth allocation systems and methods are disclosed herein. An exemplary method includes a carrier Ethernet service system 1) receiving an Ethernet layer operation, administration, and management (“OAM”) protocol based message provided by a customer premises device to a network interface device over a user network interface (“UNI”), the Ethernet layer OAM protocol based message including a request to adjust an amount of bandwidth allocated to a carrier Ethernet service provided by the Ethernet service system to the customer premises device, and 2) adjusting, in response to the request, the amount of bandwidth allocated to the carrier Ethernet service. Corresponding methods and systems are also disclosed. | 08-01-2013 |
20130294769 | BIT ERROR GENERATION SYSTEM FOR OPTICAL NETWORKS - A bit error generating device includes a light source, an input device, and a control processor. The control processor includes logic configured to: receive protocol or bitrate information regarding a live traffic signal via the input device; determine bit error simulation signal parameters based on the received protocol or bitrate information; configure the light source to generate the bit error simulation signal based on the bit error simulation signal parameters; and instruct the light source to inject the bit error simulation signal into an optical fiber carrying the live traffic signal. | 11-07-2013 |
20140056126 | METHOD AND SYSTEM FOR PROVIDING FAULT ISOLATION FOR A SERVICE PATH IN AN ETHERNET-BASED NETWORK - An approach for providing fault isolation for a service path in an Ethernet-based network is described. A service path within an Ethernet-based network and associated with a plurality of management levels is determined. A plurality of management points that are along the service path and that correspond to the management levels are monitored. An occurrence of a fault at one of the management points associated with the service path is identified based on the monitoring. | 02-27-2014 |
20140068106 | METHOD AND SYSTEM FOR PROVIDING LATENCY DETECTION BASED ON AUTOMATED LATENCY MEASUREMENTS OF COMMUNICATION NETWORK PATHS - An approach for providing latency measurements for a communication path of a transmission network is described. Measurement of latency associated with one or more communication paths of a transmission network is initiated. An increase in the latency within the transmission network is detected based on the latency measurement. One or more secondary communication paths of the transmission network are determined to address the latency increase. One of the secondary communication paths is selected according to a latency threshold. | 03-06-2014 |
20140280807 | SYSTEM FOR AND METHOD OF AUTOMATICALLY DISCOVERING AND CONFIGURING NIDS - A system for and method of automatic discovery and configuration of network interface devices is presented. A network interface device (NID) may be included a pre-configured maintenance entity end point (MEP), whereby upon use, the NID may begin sending at least one discovery message to a provider edge device, each discovery message including an organizationally unique identifier. The provider edge device may strip the discovery message(s) to determine the message content, which may then be forwarded to a NIS management system. The NID management system may then identify an identification number of the NID, determine where the NID is installed and send any configuration data to the NID via the provider edge device to configure the NID. | 09-18-2014 |