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Proceedings Paper

Integrating policy-based management and SLA performance monitoring
Author(s): Tzong-Jye Liu; Chin-Yi Lin; Shu-Hsin Chang; Meng-Tzu Yen
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Paper Abstract

Policy-based management system provides the configuration capability for the system administrators to focus on the requirements of customers. The service level agreement performance monitoring mechanism helps system administrators to verify the correctness of policies. However, it is difficult for a device to process the policies directly because the policies are the management concept. This paper proposes a mechanism to decompose a policy into rules that can be efficiently processed by a device. Thus, the device may process the rule and collect the performance statistics information efficiently; and the policy-based management system may collect these performance statistics information and report the service-level agreement performance monitoring information to the system administrator. The proposed policy-based management system achieves both the policy configuration and service-level agreement performance monitoring requirements. A policy consists of a condition part and an action part. The condition part is a Boolean expression of a source host IP group, a destination host IP group, etc. The action part is the parameters of services. We say that an address group is compact if it only consists of a range of IP address that can be denoted by a pair of IP address and corresponding IP mask. If the condition part of a policy only consists of the compact address group, we say that the policy is a rule. Since a device can efficiently process a compact address and a system administrator prefers to define a range of IP address, the policy-based management system has to translate policy into rules and supplements the gaps between policy and rules. The proposed policy-based management system builds the relationships between VPN and policies, policy and rules. Since the system administrator wants to monitor the system performance information of VPNs and policies, the proposed policy-based management system downloads the relationships among VPNs, policies and rules to the SNMP agents. The SNMP agents build the management information base (MIB) of all VPNs, policies and rules according to the relationships obtained from the management server. Thus, the proposed policy-based management system may get all performance monitoring information of VPNs and policies from agents. The proposed policy-based manager achieves two goals: a) provide a management environment for the system administrator to configure their network only considering the policy requirement issues and b) let the device have only to process the packet and then collect the required performance information. These two things make the proposed management system satisfy both the user and device requirements.

Paper Details

Date Published: 17 October 2001
PDF: 7 pages
Proc. SPIE 4584, Optical Network Design and Management, (17 October 2001); doi: 10.1117/12.445142
Show Author Affiliations
Tzong-Jye Liu, Industrial Technology Research Institute (Taiwan)
Chin-Yi Lin, Industrial Technology Research Institute (Taiwan)
Shu-Hsin Chang, Industrial Technology Research Institute (Taiwan)
Meng-Tzu Yen, Industrial Technology Research Institute (Taiwan)

Published in SPIE Proceedings Vol. 4584:
Optical Network Design and Management
Xiaomin Ren; Tomonori Aoyama, Editor(s)

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