Entries for the ‘Network Configuration’ Category

NETCONF & YANG: Potential Markets

Will there be a successful outcome for NETCONF and YANG standards? Can NETCONF and YANG shift the management paradigm from configuring individual devices to the configuration of entire networks? Which network and service equipment is most likely to incorporate a NETCONF server? Early adopters of NETCONF include two large router companies. Juniper has led the […]

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NETCONF & YANG: Architecture

In this article we explore the architecture of NETCONF and YANG.  Much of the information presented in this article is derived from RFC 4741, “NETCONF Configuration Protocol”. Introduction The Network Configuration (NETCONF) protocol is designed as a simple mechanism through which the configuration data residing on a network device may be inspected and manipulated. The […]

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NETCONF & YANG: Motivation and Inception

In this article we explore the motivation and inception of IETF standards work on the NETCONF protocol and the YANG data modeling language. MOTIVATION: Over the past two decades, some significant issues emerged relative to the current best practices for the configuration of networks and services: Using SNMP as the basis for configuration tasks for […]

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NETCONF & YANG: Introduction and Overview

This article is the first in a series of articles on the emerging NETCONF and YANG standards published by the IETF. Over the past several years, participants within the IETF Operations and Management area have published two complementary series of RFCs that specify a proposed standard for the advanced configuration of networks and services. The […]

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Using SNMPv3 for Secure Transmission of SNMP Messages

Versions of the SNMP prior to third version (SNMPv3) did not include adequate security. Any sufficiently motivated individual with physical access to a shared network link and a protocol sniffer had the ability to capture clear text messages exchanged between a manager application and its agents. Once captured, it was simply a matter of extracting […]

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