AUTOMATIC SOFTWARE UPDATE ON NETWORK DEVICES
Granted: June 6, 2013
Application Number:
20130145356
A method may include contacting, by a network device, another device to obtain at least one of a network address, authentication, or authorization, receiving, from the other device, software update information that identifies an up-to-date software that the network device should have installed and location information that identifies a location from which to retrieve the up-to-date software, comparing, by the network device, the software update information to software information that…
INCREASING MEAN TIME BETWEEN FAILURES FOR POWER SUPPLIES
Granted: June 6, 2013
Application Number:
20130144454
A redundant power supply may obtain a rule for increasing mean time between failures (MTBF) for a first internal power supply and a second internal power supply connected to an electronic device, apply the rule to the first and second power supplies, activate the second internal power supply based on the rule to permit the second internal power supply to provide power to the electronic device, and deactivate the first internal power supply based on the rule.
VIRTUAL LOCAL AREA NETWORK (VLAN)-BASED MEMBERSHIP FOR MULTICAST VLAN REGISTRATION
Granted: June 6, 2013
Application Number:
20130142199
A network node that includes a memory to store a multicast forwarding table that contains entries that govern how multicast traffic is to be forwarded from a multicast virtual local area network (MVLAN) associated with the network node, to receiver VLANs associated with the network node, where each entry includes a multicast group, that is associated with a group of ports on the multicast VLAN via which the multicast traffic is received, and information associated with the receiver VLANs…
WRR SCHEDULER CONFIGURATION FOR OPTIMIZED LATENCY, BUFFER UTILIZATION
Granted: May 30, 2013
Application Number:
20130136141
A method includes receiving network information for calculating weighted round-robin (WRR) weights, calculating WRR weights associated with queues based on the network information, and determining whether a highest common factor (HCF) exists in relation to the calculated WRR weights. The method further includes reducing the calculated WRR weights in accordance with the HCF, when it is determined that the HCF exists, and performing a WRR scheduling of packets, stored in the queues, based…
APPARATUS AND METHOD FOR DATA TRANSMISSION
Granted: May 30, 2013
Application Number:
20130136137
Local concentration of accessing loads on a data buffer during data cell reading is reduced. Also, by providing sufficient time for a data cell reading operation with respect to data cell transmission timing, transmission rate fluctuation of CBR data cells in a transmitting side is reduced. When transmission of a new data stream is added, controller in a cell control unit refers to a transmitted data cell count of VC information processed through a slot immediately before. The controller…
SEQUENCING PACKETS FROM MULTIPLE THREADS
Granted: May 30, 2013
Application Number:
20130136134
A device may reserve a slot for a received packet in a packet ordering queue (POQ), convey the packet to one of a plurality of threads for processing, obtain the packet from the one of the plurality of threads after the packet has been processed, organize the packet in the POQ in accordance with a position of the reserved slot, and release the packet from the POQ if the reserved slot is a head of the POQ.
USING ENDPOINT HOST CHECKING TO CLASSIFY UNMANAGED DEVICES IN A NETWORK AND TO IMPROVE NETWORK LOCATION AWARENESS
Granted: May 23, 2013
Application Number:
20130132569
A device receives, from a managed device, endpoint information associated with an unmanaged device connected to the managed device in a network. The device also receives unmanaged device information that partially identifies the unmanaged device, and completely identifies the unmanaged device based on the endpoint information and the unmanaged device information.
COMBINING NETWORK ENDPOINT POLICY RESULTS
Granted: May 23, 2013
Application Number:
20130133027
An endpoint integrity system controls access to resources of a protected network for endpoint devices attempting to access the protected network. The system may include a number of evaluation modules that communicate with an endpoint device. The evaluation modules generate policy results for the endpoint device, in which each of the policy results assume one of three or more states, called a multi-state policy result. The multi-state policy results are combined to produce a combined…
FAST RESOURCE RECOVERY AFTER THREAD CRASH
Granted: May 23, 2013
Application Number:
20130132773
A resource recovery system may maintain a counter in memory that indicates a number of times one or more threads of execution, which use shared resources, have crashed. The system may associate a first value of the counter with a resource allocated to a thread of the one or more threads, and may set an indicator associated with the thread to indicate whether the thread has crashed. The system may determine whether to re-allocate the resource to the thread based on the first value of the…
NETWORK DISRUPTION PREVENTION WHEN VIRTUAL CHASSIS SYSTEM UNDERGOES SPLITS AND MERGES
Granted: May 23, 2013
Application Number:
20130132763
A method performed by network devices that includes operating in a normal mode, where the network devices form a virtual chassis that corresponds to a single logical network device; detecting when a failure within the virtual chassis occurs; executing a splitting process to form one or more new virtual chassis in correspondence to the failure; determining whether one of the one or more new virtual chassis operates as a functioning virtual chassis based on whether at least one of a set of…
ADAPTIVE NETWORK CONTENT DELIVERY SYSTEM
Granted: May 23, 2013
Application Number:
20130132504
A method and apparatus stores media content in a variety of storage devices, with at least a portion of the storage devices having different performance characteristics. The system can deliver media to a large number of clients while maintaining a high level of viewing experience for each client by automatically adapting the bit rate of a media being delivered to a client using the client's last mile bit rate variation. The system provides clients with smooth viewing of video without…
LAYER 1 FRAME CONSTRUCTION
Granted: May 23, 2013
Application Number:
20130128901
A method includes appending, by a network device, a first layer 1 frame header to a first payload to form a first layer 1 frame and a second layer 1 frame header to a second payload to form a second layer 1 frame and outputting the first layer 1 frame and the second layer 1 frame in a same format to a network. The first payload may include first layer 2 data. The first layer 1 frame header may include a first protocol identifier that indicates that the first layer 2 data is associated…
CALL ADMISSION CONTROL METHOD AND SYSTEM
Granted: May 23, 2013
Application Number:
20130128736
A call admission control technique allowing flexible and reliable call admissions at an ATM switch in the case of an ATM network including both QoS-specified and QoS-unspecified virtual connections is disclosed. In the case where a QoS (Quality of Service) specified connection request occurs, an estimated bandwidth is calculated which is to be assigned to an existing QoS-unspecified traffic on the link associated with the QoS-specified connection request. A call control processor of the…
SYSTEMS AND METHODS FOR DROPPING DATA USING A DROP PROFILE
Granted: May 23, 2013
Application Number:
20130128734
A system selectively drops data from queues. The system includes a drop table that stores drop probabilities. The system selects one of the queues to examine and generates an index into the drop table to identify one of the drop probabilities for the examined queue. The system then determines whether to drop data from the examined queue based on the identified drop probability.
MULTIPLEXING APPARATUS AND DISCARD METHOD
Granted: May 16, 2013
Application Number:
20130121144
An ATM multiplexing apparatus of the present invention is the apparatus for selectively performing cell discard processing in the case of congestion on the basis of a use state of the same connection formed by cells from the side of an ATM switching unit and subscribers without installing UPC units, and the ATM multiplexing apparatus, which is connected to the ATM switching unit and each of plural subscribers through ATM communication lines and performs multiplexing processing to ATM…
ANALYSIS OF SHORT TERM CPU SPIKES IN AN OPERATING SYSTEM KERNEL
Granted: May 16, 2013
Application Number:
20130124837
A profiler may analyze processes being run by a processor. The profiler may include logic to periodically sample a value of an instruction pointer that indicates an instruction in the first process that is currently being executed by the processor and logic to update profile data based on the sampled value. The profiler may additionally include logic to determine, in response to a context switch that includes the operating system switching the active process from the first process to…
METHODS AND APPARATUS FOR TRANSMISSION OF GROUPS OF CELLS VIA A SWITCH FABRIC
Granted: May 16, 2013
Application Number:
20130121343
In one embodiment, a method can include receiving at an egress schedule module a request to schedule transmission of a group of cells from an ingress queue through a switch fabric of a multi-stage switch. The ingress queue can be associated with an ingress stage of the multi-stage switch. The egress schedule module can be associated with an egress stage of the multi-stage switch. The method can also include determining, in response to the request, that an egress port at the egress stage…
MULTI-BANK QUEUING ARCHITECTURE FOR HIGHER BANDWIDTH ON-CHIP MEMORY BUFFER
Granted: May 16, 2013
Application Number:
20130121341
A network device includes a main storage memory and a queue handling component. The main storage memory includes multiple memory banks which store a plurality of packets for multiple output queues. The queue handling component controls write operations to the multiple memory banks and controls read operations from the multiple memory banks, where the read operations for at least one of the multiple output queues alternates sequentially between the each of the multiple memory banks, and…
FLOODING-BASED ROUTING PROTOCOL HAVING DATABASE PRUNING AND RATE-CONTROLLED STATE REFRESH
Granted: May 16, 2013
Application Number:
20130121211
An enhanced, flooding-based link state routing protocol is described that provides pruning of link state data and, when needed, rate-controlled refresh of the pruned link state data from other routers of the flooding domain. A routing device comprises a network interface to send and receive packets over a layer-two (L2) communication medium. The routing device includes a control unit coupled to the network interface, and a flooding-based link state routing protocol executing on a…
INCREASING THROUGHPUT BY ADAPTIVELY CHANGING PDU SIZE IN WIRELESS NETWORKS UNDER LOW SNR CONDITIONS
Granted: May 16, 2013
Application Number:
20130121201
Feedback indicates low signal-to-noise ratio (SNR) conditions for a wireless communications link between a transmitter device and a receiver device. After attempting to achieve a target packet error rate (PER) by increasing transmission power for the wireless communications link, the transmitter device receives feedback that indicates a current PER, for data transmitted using an initial automatic repeat request (ARQ) block size, is above the target PER for the receiver device, and…
