C-COR.net to Offer Micromuse's Netcool Suite; Leading HFC Provider to Resell Micromuse's Netcool Suite as Management Solution for Internet Over Cable Service.

Business/Technology Editors

SAN FRANCISCO--(BUSINESS WIRE)--Aug. 21, 2000

Micromuse Inc. (Nasdaq: MUSE), the leading provider of fault and service-level management software, announced today that it has signed an agreement with C-COR.net (Nasdaq: CCBL) under which C-COR.net will become an Authorized Reseller of Micromuse's Netcool(R) suite applications.

C-COR.net will offer the Netcool suite applications as part of its broadband management product and service offerings to cable operators. C-COR.net is a leading provider of high quality HFC (hybrid fiber coax) technology and services that are used to facilitate and manage the delivery of voice, video and high-speed data over advanced broadband networks.

"The combination of Micromuse's well known capabilities in fault and service management software and C-COR.net's expertise in broadband communications technology translates into a powerful end-to-end integrated network management solution for the broadband communications market that will improve the operational efficiency and customer response capabilities of cable operators," said Carrie Packer, Vice President of C-COR.net's Broadband Management Services Group.

C-COR.net is currently using the Netcool suite in its Atlanta Network Operations Center (NOC) to manage Internet services and associated equipment for eighteen different cable markets. Under the Authorized Reseller Agreement, C-COR.net will resell Netcool as a component of its COR-Convergence(TM) software suite. COR-Convergence is a multi-layered, scalable and integrated communications management system that supports element, network, service, and business management functions for broadband networks that concurrently handle telephony, high-speed data, and/or video services. Some of the capabilities provided by COR-Convergence include device management, auto-provisioning, plant management, QoS (Quality of Service) management, and root cause analyses.

"Micromuse's relationship with C-COR.net sets a standard for the entire broadband industry as it signals the development of a single vendor integrated solution for end-to-end management of all network domains, including video, voice and data networks," said Stan Sands, Micromuse's Vice President, Cable Strategies. "As a key component to C-COR.net's broadband management product and service offerings, the Netcool suite will help cable operators roll out Internet services based on complex technologies and sophisticated management solutions."

About the Netcool Suite

Micromuse's Netcool software suite collects management data from more than 200 management environments and network devices, including voice, data and Internet. Fault data is rapidly processed and filtered by the Netcool ObjectServer(TM), an in-memory database. The Netcool application allows operators to build views of service availability in realtime, helping them manage networks more efficiently. Because it is scalable and deploys rapidly, the Netcool business model allows service providers to expand their networks as their markets grow.

About C-COR.net

C-COR.net, headquartered in State College, Pennsylvania, with facilities throughout the U.S. and abroad, provides technology and services through three operational groups in support of customers as they plan, design, build and maintain complex broadband communications products. C-COR.net's Telecommunications Equipment Group develops and is a global supplier of high-quality RF (Radio Frequency) and advanced AM (Amplitude Modulation) fiber optic distribution electronics for two-way HFC (Hybrid Fiber Coax) networks. C-COR.net's Broadband Management Services Group and Worldbridge Technical Services Group, together, offer comprehensive customer service for the full HFC broadband network life cycle. The Broadband Management Services Group enables and manages new service applications over cable, offering high-speed data certification, system integration services, data security solutions, and network management services. C-COR.net's Worldbridge Technical Services Group provides nationwide customer support in the areas of network engineering and design, system activation, network optimization, and system maintenance. For more information, visit C-COR.net's web site at www.c-cor.net.

About Micromuse

Micromuse Inc. (Nasdaq: MUSE) is the leading provider of fault and service-level management software. Micromuse was named one of the Top 25 Best Performers in the Wall Street Journal's Shareholder Scoreboard, and has recently been recognized in the Forbes 500, Business Week's Info Tech 100, Bloomberg's Top 100 Stocks, Barron's 500, and the San Francisco Chronicle 500. Micromuse customers include AirTouch, AT&T, BT, Cable & Wireless, Cellular One, Charles Schwab, Deutsche Telekom, Digex, EarthLink, GTE, ICG Communications, ITC^DeltaCom, MCI Worldcom, NextLink, and a number of financial investment concerns. Headquarters are located at 139 Townsend Street, San Francisco, Calif. 94107; [phone]. The Web site is at www.micromuse.com.

Netcool is a registered trademark of Micromuse. All other trademarks and registered trademarks in this document are the properties of their respective owners. Any statements contained in this press release that do not describe historical facts may constitute forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. Any forward-looking statements contained herein are based on current expectations, but are subject to a number of risks and uncertainties.

The factors that could cause actual future results to differ materially from the forward-looking statements include the following: fluctuations in customer demand, the Company's ability to manage its growth (including the ability to hire sufficient sales and technical personnel), the risks associated with the expansion of the Company's distribution channels, the risk of new product introductions and customer acceptance of new products; the rapid technological change which characterizes the Company's markets, the risks associated with competition, the risks associated with international sales as the Company expands its markets, and the ability of the Company to compete successfully in the future, as well as other risks identified in the Company's Securities and Exchange Commission Filings, including but not limited to those appearing under the caption "Risk Factors" in the Company's most recent Quarterly Reports on Form 10-Q and on Form 10-K on file with the Securities and Exchange Commission and available on the Company's Web site.