Lsi Corporation

Intel Corporation

Avago Technologies General IP (Singapore) Pte. Ltd.

Santosh Narayanan

Vishal Deep Ajmera

Rayesh Kashinath Raikar

Benzeer B Pazhayakath

Benzeer Bava Arackal Pazhayakath

Vijaya Bhaskar Kommineni

Govindarajan Mohandoss

Sandesh Kadirudyavara Ven Gowda

Govidarajan Mohandoss

Ranjith Kumar Kotikalaoudi

A method, an apparatus and/or a system to regulate yellow traffic in a network is provided. In one embodiment, the method includes quantifying, an extent of violation of a transmission rate of a data traffic relative to a committed bandwidth profile in a network. The data traffic is generated through a client device coupled to the network. The method also includes regulating, a volume of the data traffic associated with a particular level of compliance relative to the committed bandwidth profile, at an edge node of the network, based on the quantification. The committed bandwidth profile specifies an average rate of committed and excess data traffic generated by the client device. The particular level of compliance is characterized by the transmission rate exceeding a committed information rate and lying within a peak information rate. The peak information rate is maximum allowable rate of admission of frames into the network.

Adaptive method and system of regulation of yellow traffic in a network

Aspects of the disclosure pertain to a system and method for providing prediction based, fast routing of IP flows. A hash table-based mechanism is implemented by the system such that classification information obtained and/or utilized for a first packet of an IP flow is applied to subsequent packets of the IP flow, thereby promoting packet processing efficiency for the flow.

Prediction based methods for fast routing of IP flows using communication/network processors

Aspects of the disclosure pertain to a system and method for providing fast and efficient flushing of a forwarding database in a network processor. The present disclosure provides a deterministic mechanism to implement a flush operation for flushing the forwarding database. A dual FDB approach, a means for switching from one FDB to another in the event of a failure, and FDB flush operation as a background task are key features of this disclosure. The effective time for completing the flush operation is within a sub-50 millisecond time frame and is independent of the number of entries in the forwarding database. The flush operation may be performed using software.

System and method for providing fast and efficient flushing of a forwarding database in a network processor

In a data network, a node determines whether to handle data-dependent events using the node's hardware interrupt buffer or instead using an available fallback action. The node classifies each detected event as being one of a plurality of different categories of events and determines, based on the classified category, whether to handle the detected event using the hardware interrupt buffer of the node. Each different event category can be assigned its own scale factor, where the available (i.e., currently unused) capacity of the hardware interrupt buffer is allocated based on those programmed scale factors. If the node determines to handle the detected event using the hardware interrupt buffer, then the node stores a hardware interrupt corresponding to the detected event in the hardware interrupt buffer. Otherwise, the node handles the detected event using a fallback action.

Reliable notification of interrupts in a network processor by prioritization and policing of interrupts

A system and method for allocating memory locations in a buffer memory system is described. The system includes a plurality of memory locations for storage and a controller. The controller controls the storage and retrieval of data from the plurality of memory locations and allocate a first portion of the memory locations to a first buffer, wherein the remaining portion of the memory locations defines a second portion. The controller allocates a portion of the second portion to a second buffer and the remaining portion of the second portion defines a third portion. The controller reserves a portion of the third portion for assignment to the second buffer, wherein, the second buffer is assigned a higher priority over the first buffer. The controller selectively allocates one or more memory locations of the third portion to the first buffer or to the second buffer.

System and method for split ring first in first out buffer memory with priority

In one embodiment, a scheme for reliably reading data values, such as rapidly-changing counter values, from a memory location. Instead of performing a single read operation, a set of N consecutive read operations is performed to obtain a set of N samples. Since, for counter values and the like, the frequency of occurrence of out-of-sequence values is relatively low, it is expected that a majority of the N samples will be in sequence. Of these N samples, the largest subset of monotonically-increasing values is selected. The median value of this subset of monotonically non-decreasing values is returned as a reliable result of the read operation.

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Bengaluru, India

Santosh Narayanan