Peribit's Packet Interception Mode Delivers Deployment Flexibility without Laborious Reconfiguration.

Business Editors/High-Tech Writers

SANTA CLARA, Calif.--(BUSINESS WIRE)--Dec. 15, 2003

Advent Software Quadruples Data Replication Capacity

Without Disruption To Users Or Applications

Peribit Networks, the world leader in WAN application performance, announced today that Advent Software, Inc. (Nasdaq:ADVS), the leading provider of software to the financial services industry, has used Peribit's Packet Interception Mode feature to deploy Peribit Sequence Reducers in its network. Packet Interception Mode enables users to install Sequence Reducers and gain instant bandwidth capacity without any laborious reconfiguration of routers, servers, or other network devices.

Advent has installed Peribit SR-50 and SR-20 Sequence Reducers to handle rising backup and data replication traffic between its data centers in New York and San Francisco, quadrupling the available bandwidth on those WAN links. Companies like Advent are now leveraging Packet Interception Mode to deploy Peribit equipment in "collapsed backbone" environments that use combined switch/router devices.

"We couldn't deploy Sequence Reducers with an in-line installation because we use a combined switch/router in our corporate headquarters," said Peter Castiglione, senior software engineer at Advent, "and there was no way we could change the default gateways on our networks without major disruption to our network architecture. With Packet Interception Mode, we didn't have to. Peribit's Sequence Reducers are the only bandwidth optimization products that accommodate our deployment requirements without changing our routing configuration. In the end, we get four times more WAN capacity with a simple deployment."

Packet Interception Mode Enables Flexible Deployments

Typically, bandwidth optimization devices like Peribit's Sequence Reducers are deployed physically in the path of network traffic, between the site's WAN router and network switch. This is the simplest and most transparent method of deployment, but it is not always feasible. For example, some networks have multiple switches that feed traffic from different network segments into a single WAN router, or have redundant switches and routers at the edge of the WAN. In other cases, companies have deployed collapsed backbones with a combined switch and router so that there is no physical location in which to deploy a Peribit device.

In these alternate deployment scenarios, it is necessary to route traffic to the bandwidth optimization device at the edge of the WAN. Previous solutions attempted to solve this problem by making the bandwidth optimization device the default network gateway, but this method requires laborious reconfiguration of the routers and servers and directs all traffic to the bandwidth optimizer. Network administrators are understandably hesitant to pursue this option.

Peribit's Packet Interception Mode gives network administrators three new and simple options for directing traffic to a Sequence Reducer without changing the default network gateway or otherwise reconfiguring other network devices:

-- Route Injection -- The Peribit Sequence Reducer becomes the

next router hop by advertising itself as "lowest cost" router

to the WAN router upstream. In this way, all traffic is routed

through the sequence reducer without any reconfiguration. This

option requires no intervention as new end points or subnets

are added.

-- WCCP -- Using the Web Cache Communication Protocol, network

administrators can redirect specific types of traffic from the

WAN router to the Sequence Reducer. This method is useful for

deployments where the administrator wants to route only

specific types of traffic through the Sequence Reducer. Again,

this option will automatically adjust to network changes.

-- External -- The Sequence Reducer is connected directly to a

WAN router port, and the router is configured to direct WAN

bound traffic through that port. This method requires a simple

change to the router configuration to ensure that the Sequence

Reducer sees all traffic before it traverses the WAN.

Advent Software Gains Capacity Without Compromise

Advent Software offers a suite of applications and services to financial services firms. More than 60,000 professionals at 6,500 firms worldwide use Advent's products to manage more than $8 trillion in assets. To provide optimum application performance for its outsource service, Advent requires local copies of data at its co-location centers in New York, California and other states.

Although Advent looked at other bandwidth optimization solutions such as router compression, the company chose Peribit Sequence Reducers because they were easy and non-disruptive to install and they provided the greatest capacity increase. "We wanted to build a WAN that will scale automatically as our customers increase their use of our outsource solution," said Castiglione. "We tested the Peribit SR-50s for a month and the results were obvious -- Peribit gave us the simplest, most effective, and most non-disruptive way to scale our WAN links."

Peribit's Packet Interception Mode options were crucial for Advent Software. Using Peribit's Route Injection option, the company could easily reduce all traffic destined for its WAN without adding static routes or reconfiguring routers. The installation took only minutes with no network downtime.

"Broad deployment of any technology across enterprise networks requires flexible configuration options that are easy to implement," said Jef Graham, president and CEO of Peribit Networks. "Packet Interception Mode gives our customers new ways to leverage our technology to proactively provide more capacity and overcome the impact of latency on application response time. The result is that any company can improve application response times while staying within existing IT budgets."

About Peribit Networks

Founded in May 2000, Peribit Networks is the world leader in WAN application performance, making the only products that address all three factors that limit link and application performance: capacity, contention, and latency. Based on Peribit's patent-pending Molecular Sequence Reduction (MSR), the company's products deliver up to ten times the link and application performance over existing WAN infrastructure, enabling enterprises to deploy critical applications without performance penalties. Peribit's award-winning products install within minutes, deliver immediate benefits, and frequently provide a hard dollar ROI in a matter of months. A privately held company, Peribit is funded by top-tier investors Accel Partners, Foundation Capital, and Mayfield. Headquartered in Santa Clara, California, Peribit has operations throughout North and South America, Europe, Middle East, Africa and Asia Pacific. For more information, please visit the company's website at www.peribit.com.

Peribit, Molecular Sequence Reduction, and Packet Flow Acceleration are registered trademarks of Peribit Networks. All other trademarks are properties of their respective owners.