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Título: A policy based network configuration framework /
Autores: Xiao, Zhifeng, 1966-
Fecha: 2002
Publicador: McGill University - MCGILL
Fuente:
Tipo: Electronic Thesis or Dissertation
Tema: Computer Science.
Descripción: Networks and their services have been growing rapidly in recent years, so has the complexity of configuring the network operations. In order to manage the rapidly expanding networks, new management protocols are thus needed to change the network management from configuration of individual devices to automation of the whole network. SNMPCONF, a policy-based configuration with SNMP protocol, is proposed by IETF to meet this requirement.
SNMPCONF is suggested to configure networks with a policy MIB (Management Information Base). However, deploying this protocol in existing network devices needs more work, because the policy MIB defined by SNMPCONF is not implemented now in the present network and no configuration MIB defined. Even if the configuration MIB and policy MIB implemented by vendors in future, some existing devices may not be upgraded to support these MIB for their hardware limitation (e.g., memory limit). Another problem is found in the communication between a SNMP supported network and the SNMP unsupported networks (e.g. telecommunication network where TL1 is used in North America). In this study, CLI and TL1 are used to help solving these problems. Based on Modular SNMP from University of Quebec at Montreal, a JAVA framework to deploy SNMPCONF with this approach is implemented and tested on a network built with Cisco routers (Cisco IOS 12.0, routers ranged from Catalyst 2600 to 2900). The preliminary work shows the SNMPCONF can be implemented by wrapping CLI commands as accessory functions in policy language without configuration MIB. As shown in this work, another advantage of this approach is that policy execution is atomic and persistent.
Idioma: en