Hewlett Packard Enterprise Development LP

Hewlett-packard Development Company, L.p.

Shaun Wackerly

Charles F Clark

Duane Edward Mentze

Shaun Wakumoto

Craig Joseph Mills

Frank J Wood

Gurraj Atwal

Bruce E LaVigne

Nick E Demmon

Jeremy Brown

Sean E Humphress

Sagar Bhanagay

Rajendra Ram Shelke

Vali W Lean

The system receives, from a client, a first request for a document which is parsed based on a syntax. The system parses and returns an initial number of lines of the document, thereby allowing the client to display the parsed initial number of lines in a visible window. Subsequent to successfully parsing a remainder of the lines, the system stores a fully-parsed version. Responsive to a scrolling action in the visible window, the system provides a relevant portion of an unparsed document associated with the first request. Responsive to detecting a termination of the scrolling action, the system receives a second request for parsed lines corresponding to a first set of lines. The system returns the corresponding parsed lines, thereby allowing the client to display the corresponding parsed lines in the visible window.

Performant run-time parsing and editing in a client-server model

Embodiments assist with dynamic repairs to the system's grammar. The system can determine the existence of errors within common configuration files. The system can use this determination to compare a common configuration file with a term replacement dictionary to determine resolution options. The system can update the term replacement dictionary if the error or resolution for the error is not in the term replacement dictionary.

Automated global configuration error removal of clustered network devices

A system for dynamically managing a configuration file of a switch is provided. During operation, the system can determine one or more groups of line specifications in a specification file. A respective line specification can indicate a format of a respective variant of a configuration command of the switch. The system can then annotate a respective group in the specification file with a corresponding label. Subsequently, the system can associate a respective configuration command of the configuration file with a label of a group based on matching the configuration command with the group.

Method and system for facilitating auto-annotation and dynamic display for switch configurations

Examples disclosed herein relate to performing an action based on an advertisement indicator is present in a network packet. In one example, a network packet identified by a network infrastructure device as matching criteria associated with a pre-identified request is received. A parameter within the network packet is identified. A rule is used to determine whether the parameter indicates that an advertisement indicator is present in a flow associated with the network packet. An action is performed based on whether the advertisement indicator is present in the network packet.

Action based on advertisement indicator in network packet

An example method is described for monitoring a network. The method includes detecting that a network attribute has been updated at a network device. The method further includes selecting, based in part on the updated network attribute, a set of network functionality tests from a group of network functionality tests. The method further includes executing the set of network functionality tests. The method further includes receiving information describing functionality of the network during the set of network functionality tests at the network device. The method further includes determining results of the set of network functionality tests based on the information describing functionality of the network. The method further includes calculating a network functionality score based, in part, on the results of the set of network functionality tests.

Network health monitoring

Systems and methods are provided for dynamic grammar augmentation for editing multiple network switch configuration files as a single file. The method includes identifying a first base grammar of a first network switch; identifying a second base grammar of a second network switch; identifying first and second patch grammars for the first and second network switches; generating an augmented grammar based on the first and second patch grammars and the first and second base grammars; identifying a first configuration file for the first network switch; identifying a second configuration file for the second network switch; generating a base merged configuration file, the base merged configuration file representing the first and second configuration files modified according to the augmented grammar.

Dynamic grammar augmentation for editing multiple network switch configuration files as a single file

An expression evaluation system is provided. During operation, the system can obtain an encoded expression associated with a user group of a network and evaluate the encoded expression for a first switch to determine a first set of commands that the user group is allowed to execute on the first switch. The encoded expression can encode a set of commands. The system can then determine validity of the first set of commands for the user group by determining whether a respective user of the user group should be allowed to execute the first set of commands on the first switch. If the system identifies an issue with the validity of the first set commands, the system can generate a notification indicating the issue.

Method and system for enhanced command management in a network

Examples described herein configure a network based on a centroid configuration of a group of network entities. Examples herein include classifying a plurality of network entities into a classification, wherein the network entities are configured on a plurality of network devices that are connected to the network. Examples herein include, based on the classification of the network entities, grouping the network entities into a plurality of groups. Examples herein include determining, for each of the groups, a centroid configuration of the network entities in the group. Examples herein include sending instructions to configure the network according to the centroid configuration of a selected one of the groups, wherein at least one network entity is configured according to the centroid configuration of the selected group in response to receiving the instructions.

Configuring a network based on a centroid configuration of a group of network entities

An example consistent with this disclosure includes a controller that is communicatively coupled to dataflow devices in a network. The controller receives device information from a dataflow device and determines features supported by the dataflow device based, in part, on the device information received from the dataflow device. Using a driver configured to use the features supported by the dataflow device, the controller transmits a command to the dataflow device. The controller then receives a response to the command from the dataflow device. The response to the command may include information that indicates different features are supported by the dataflow device than previously determined. The controller updates its determination of the features supported by the dataflow device and updates the driver used to transmit the command to the dataflow device.

Device-aware dynamic protocol adaptation in a software-defined network

A network configuration change validation environment is disclosed. In particular, this disclosure is related to an interface to initiate automated test actions (e.g., network monitoring commands, application monitoring commands, etc.) and to view results in an efficient manner to support a network communication infrastructure. In one example, results of a set of commands executed prior to a configuration change may serve as a baseline and one or more results of the same set of commands may be intelligently compared to the baseline to identify any potential issues that have arisen. For example, as a result of a specific network configuration change or application update. The disclosed network change validation command initiator and validation report viewer represent part of an overall network configuration change validation environment that includes automated techniques such that it may be used within a given change window.

System and method for validating correctness of changes to network device configurations

Example implementations relate to construction of a network service chain. For example, a system for construction of a network service chain can include a detection engine to detect a portion of a first network policy directing a subset of packets to a first service and a portion of a second network policy directing the subset of packets to a second service, and a construction engine to construct a network service chain of the first service and the second service in an order determined from a priority assigned to the first network policy and a priority assigned to the second network policy.

Network service chain construction

A controller, which manages nodes that provide virtual entities, receives information from a first of the nodes, where the received information relates to a characteristic of a virtual entity provided by the first node. The controller determines that the received information is inconsistent with information, maintained by the controller, relating to the characteristic of the virtual entity provided by the first node. In response to the determining, the controller reconciles an inconsistency between the received information and the information maintained by the controller.

Reconciling information in a controller and a node

In some examples, a method includes accessing an orthogonal network policy set that represents a first intent-based network policy and a second intent-based network policy. The method may also include determining multiple reduced orthogonal network policy sets from the orthogonal network policy set. The multiple reduced orthogonal network policy sets may differ from one another, and each represent the first and second intent-based network policies. The method may further include selecting a particular reduced orthogonal network policy set among the multiple reduced orthogonal network policy sets to implement on a target switching device.

Growing community of inventors

Roseville, CA, United States of America

Shaun Wackerly