Showing papers by "Alberto Prieto published in 2016"

Subscribing to Event Notifications

Abstract: This document defines capabilities and operations for subscribing to content and providing asynchronous notification message delivery on that content. Notification delivery can occur over a variety of protocols used commonly in conjunction with YANG, such as NETCONF and RESTCONF. The capabilities and operations defined in this document when using in conjunction with draft-ietf-netconf-netconf-event- notifications are intended to replace RFC 5277.

Requirements for Subscription to YANG Datastores

Abstract: This document provides requirements for a service that allows client applications to subscribe to updates of a YANG datastore. Based on criteria negotiated as part of a subscription, updates will be pushed to targeted recipients. Such a capability eliminates the need for periodic polling of YANG datastores by applications and fills a functional gap in existing YANG transports (i.e., Network Configuration Protocol (NETCONF) and RESTCONF). Such a service can be summarized as a "pub/sub" service for YANG datastore updates. Beyond a set of basic requirements for the service, various refinements are addressed. These refinements include: periodicity of object updates, filtering out of objects underneath a requested a subtree, and delivery QoS guarantees.

Adaptive subscriber-driven resource allocation for push-based monitoring

Abstract: In some embodiments, a network resource allocation method comprises determining a subscriber limit rate at which a subscriber computer can process updates received from a plurality of publisher computers, wherein each of the updates comprises an electronic digital message received over a computer network; determining, for each publisher computer of the plurality of publisher computers, a not-to-exceed rate of updates sent to the subscriber computer and storing a plurality of the offered rates; determining by the subscriber computer, for each publisher computer of the plurality of publisher computer, a utility of updates sent by the publisher computer and storing a plurality of the utilities; assigning to each publisher computer of the plurality of publisher computers a publisher limit rate at which the respective publisher computer sends updates to the subscriber computer using the offered rate and the utility of updates of the respective publisher computer.

Autonomic Networking Use Case for Distributed Detection of SLA Violations

Abstract: This document describes a use case for autonomic networking in distributed detection of Service Level Agreement (SLA) violations. It is one of a series of use cases intended to illustrate requirements for autonomic networking.

Restconf, HTTP, and HTTP2 Transport for YANG Push

Abstract: This document defines YANG Subscription and Push mechanisms for Restconf, HTTP, and HTTP2 transports.

Subscribing to YANG-Defined Event Notifications

Abstract: This document defines capabilities and operations for providing asynchronous message notification delivery for notifications defined using YANG. Notification delivery can occur over a variety of protocols used commonly in conjunction with YANG, such as NETCONF and Restconf. The capabilities and operations defined in this document along with their mapping onto NETCONF transport (to be specified in a separate document, but still included in the current document version) are intended to obsolete RFC 5277.

Allocating bandwidth between network computing devices for pushing data to a client computing device

Abstract: Computer systems and methods for allocating bandwidth so that server computers can send data to a client computer without exceeding the available bandwidth between the server computers and the client computer, or the processing bandwidth or capacity of the client computer, are discussed herein. In an embodiment, a method comprises determining a first share of bandwidth that is to be available for a first computing device to send data to the client computer during a first future period of time; determining a first rate at which the first computing device is to send data to the client computer during the first future period of time; determining that the first rate is less than the first share of bandwidth that is to be available for the first computing device to send data to the client computer during the first future period of time by a first delta; receiving, from a second computing device among the plurality of network computing devices, a first request for additional rate allocation; sending, to the second computing device, a first rate allocation that is equal to or less than the first delta; sending data to the client computer during the first future period of time at a first actual rate that is less than or equal to the first rate minus the first rate allocation.