Network management was always an arcane art. Now that computers are ubiquitous and Internet access is a corporate imperative, the job is even more complicated.
It's no longer enough just to wire your users to the company's servers. Now you must maintain an acceptable level of availability, guarantee a good response time, run at optimal capacity, integrate e-commerce sales support into the network, route voice traffic over your data lines, enable salespeople in Timbuktu to access the network and give your boss a weekly summary of network performance.
In addition to noticing that your job has grown more complex, you've probably realized that the tools you need have become more specialized. Each of the 10 companies on our Emerging Companies list in the network and communications management category has tackled a particular piece of the networking puzzle.
Although no two offer the same products, there are similarities. These companies target customers with IP networks, and they're pushing the benefits of better performance in the face of rocketing data traffic.
One of the newest companies in this category, 2-year-old Altiga Networks in Franklin, Mass., is trying to fix two problems at once by giving corporate users remote access that performs well when transmitting a large amount of data. Altiga's solution is to use virtual private network (VPN) access servers, focused on the broadband subset of VPN applications -- carrying high-bandwidth data such as graphics and video. Altiga's VPN Concentrator products also allow remote access using fast connections, such as Digital Subscriber Line and cable modems, that help boost performance. Altiga recently announced a Windows 2000 VPN client.
The client applications use the open-standard Point-to-Point Tunneling Protocol for connectivity and support network security procedures such as log-in authentication. At the University of Rochester in Rochester, N.Y., the VPN Concentrator has given students, professors and administrative staff freedom of movement. Users no longer have to be on campus to access resources such as the library databases, says Tom Armading, a network engineer at the university. "We can authenticate people through Altiga even if they're not local," he says.
Thinking Globally
Although Altiga's product family scales from 50 to 5,000 connections, three other companies, Cerent Corp., GRIC Communications Inc. and eFusion Inc., aim their products at global network installations. Cerent, in Petaluma, Calif., targets optical networks and cable TV networks. Its product, Cerent 454, is a single-card solution that bundles Synchronous Optical Network/Synchronous Digital Hierarchy transport with switching and routing capabilities so it can handle voice traffic simultaneously with IP, Asynchronous Transfer Mode (ATM) and frame-relay data. It allows networks to increase capacity without running more cable.
"The Cerent product provides us with a greater operating efficiency to expand and modify our existing networks with minimal impact," says Clifford Rudolph, chairman and CEO of Advanced TelCom Group, a telecommunications company in Santa Rosa, Calif. Advanced TelCom considered competing products from Lucent Technologies Inc. and Fujitsu America Inc., Rudolph says, but chose Cerent's because of its more favorable price and size. Cisco Systems Inc., an early investor in 3-year-old Cerent, bought the company this August; the deal is scheduled to close by the end of January. The networking equipment giant hasn't announced its post-acquisition plans for Cerent.
Targeting the network's services, GRIC Communications in Milpitas, Calif., offers a Java-based software product called GRIC CSP, which lets service providers offer faxing, Internet roaming, VPN remote access and IP telephony applications to their customers. Its pitch, similar to Cerent's, is that you don't have to touch your network infrastructure; GRIC CSP works with leading equipment vendors like Cisco and Lucent.
GRIC's Internet provider customer list spans the globe. In the U.S., national Internet provider companies like America Online Inc. and Mindspring Enterprises Inc. and regional providers like Hawaii Technology Services use GRIC products to offer roaming services to their users.
GRIC has missed one niche, which another hot company, Beaverton, Ore.-based eFusion, has snuggled into. The company's eStream gives service providers a new product to offer subscribers: a way to send and receive phone calls while using the phone line to log on to the Internet. Lily Sun, group manager for IP services at US West Interprise Networking in Denver, says eStream has been a money maker. The company offers a subscriber application, Online Call Alert, powered by eStream, that's earned new customers for USWest.net, the company's Internet service provider arm.
EFusion has also used the eStream technology to build a corporate application, eBridge, that marries a retailer's call center and online catalog so customers can simultaneously shop the Web and talk to a sales rep.
"While the Amazon.com model was working great,'" says eFusion President and CEO Ajit Pendse, "online brokers were figuring out that there were a lot of transactions not being fulfilled because there wasn't someone to answer questions."
F5 Networks Inc. in Seattle addresses another problem that affects not just shoppers, but anyone who visits a corporate site -- slow servers. For Internet sites with duplicate, distributed server farms, its 3DNS traffic distributor sends visitors to the server farm that will give them the best connection based on site availability and response time. At the local level, the BIG/ip load balancer parcels out user requests among the machines in the server farm.
For Dwight J. Gibbs, the self-described chief techie geek at the Motley Fool, an Alexandria, Va.-based investment Web site, using BIG/ip has meant peace of mind. "I don't have to worry about availability, at least with regard to our load balancer," he says. "Thanks to our friends at F5 Networks, our site is always up."
Performance is also the priority at Concord Communications Inc., Quallaby Corp., Segue Software Inc. and System Management Arts Inc. Each has an approach to monitoring, analyzing, tuning, testing, diagnosing and fixing network performance.
Marlboro, Mass.-based Concord's Network Health family of products reports on a range of enterprise network elements including LANs, WANs, routers, hubs, frame relay, ATM, servers and applications.
Joe Askins, director of data communications at Arizona State University in Phoenix, says Network Health has "saved us millions." Using Network Health to monitor the Ethernet connections on four campuses has allowed him to maintain the network at capacity and upgrade when needed.
Riding a Trend
Quallaby is on top of an important network management trend, according to John Morency, executive vice president of consulting at analyst firm Sage Research in Natick, Mass. There's a growing need among enterprises with mission-critical Web and e-commerce sites to get concrete data on Internet services rendered by Internet providers. "Implementing one or more e-commerce services creates the need to manage access to those services in a more deterministic, production-oriented manner," Morency says. "Ensuring that (Internet service providers) consistently live up to their service-level commitments is one key part of meeting that need."
The Burlington, Mass., company's Proviso products collect network performance metrics; a reporting module analyzes the data, using canned or customized reports.
Segue Software takes a testing approach to ensure that network applications have enough bandwidth and response time. The Lexington, Mass., company's SilkPerformer module load-tests Web, application and database servers by simulating transactions with a broad range of modem speeds, browser versions and access protocols. Segue's SilkPilot and SilkObserver modules dig down to the object level, testing the performance and reliability of distributed objects and middleware.
"If we didn't have Segue and had to manually test all of our applications and rating products, we'd have to increase our quality assurance department tenfold," says Donna Robertson Pfaff, assistant vice president of quality assurance at Beverly, Mass.-based Insurance Holdings of America Inc., which develops software for the insurance industry.
The focus at System Management Arts is on finding and fixing problems, not just collecting data. "There were more and more products providing raw data but not telling you if you have a problem and what is its source," says Shaula Yemini, founder and CEO of the White Plains, N.Y., company.
System Management Arts' InCharge System operates on the same theory as fingerprints: Every root-cause network problem creates a unique signature of symptoms and effects. If InCharge diagnoses the root cause quickly, then it gets fixed quickly, maximizing network uptime.
Using InCharge IP Fault Manager has cut the number of problem tickets by 70% at Bell Nexxia, a Canadian Internet provider in Montreal. "We can filter out glitches that last a few seconds and concentrate on problems that are more solid," says Bert Mariani, network tools manager.
Low cost and ease of use are the differentiators for Cobalt Networks Inc.'s Web servers. Cobalt, in Mountain View, Calif., doesn't sell just hardware. Its Qube and RaQ products are turnkey systems that include a Linux operating system, Apache Web server software and e-mail and page-creation tools. SimpleNet, a division of Santa Clara, Calif.-based Yahoo Inc., uses Cobalt's RaQ hosting solution as the platform for its virtual-hosting customers.
"The relationship with Cobalt has let us provide a user interface that maintains our goal of keeping Web hosting simple and useful," says Allen Cocumelli, chief operating officer at SimpleNet. The benefit is that by virtually hosting their site on SimpleNet's RaQ servers, instead of maintaining their own hardware, customers can easily scale up their sites as their business grows.
Johnson is a freelance writer in Seattle. Contact her at amyhelen@pobox.com.