DCFD (Data Collection Filtering Device)

Data Access, Filtering, and Delivery Device for IP Interception Applications

Lawfully authorized electronic surveillance (LAES - sometimes referred to as "wiretapping" or "lawful intercept") is a critically important law enforcement tool that police and other authorized government agencies use to investigate and prosecute criminals. LAES is the collection of (1) the contents of communications; and/or (2) communication identifying information. With the rapid growth of IP based networks (such as the Internet), criminals and terrorists have started using IP based applications for communications (email, chat, instant messaging, voice over IP, FTP, etc…) instead of voice. A clear need has emerged to create products and standards that can enable surveillance of IP based communications. Top Layer's richly constructed DCFD 3500 product line can be used as the IP Intercept Access Point (IAP) to address the need for interception.

An IP Interception architecture typically includes a combination of the following components:

Provisioning and warrant management system

Configures/provisions intercept access points, and manages warrants (authorizations).

Intercept access point (IAP) (such as the DCFD 3500)

Accesses data.
Filters based on targeting information.
Delivers data to either a mediation device or collector.

Mediation device

Collects filtered information from multiple IAPs in same area.
Sometimes configures IAPs, by getting information from provisioning system.
Formats information, and converts data to correct delivery protocol to collectors.
Converts events to reports, and delivers matching content and IRI info.

Collection function

Located at LEA site, it collects information from mediation devices (sometimes from IAPs) and stores it on disk in a database format.

Analysis function

Decodes information stored in collectors and presents it in user readable form.
Capabilities for detailed reporting and intelligent analysis.

The DCFD 3500 IP Interception Solution

Minimizes deployment time.
Allows collection and filtering of application data at Gigabit speeds.
Does not disrupt or degrade network services.
Enables real time IP network monitoring.
Preserves privacy requirements.

For additional information please contact mpaquette@TopLayer.com +1 (508) 870 1300 x135

NOTICE: This information is supplied for Law Enforcement Agencies and Service Provider's research purposes only and is subject to change. The contents of this site do not constitute legal advice or any representation, warranty or guarantee regarding a Service Provider's ability to comply with applicable Lawful Intercept requirements. Such a determination is the sole responsibility of the Service Provider, and Top Layer Networks, Inc. disclaims any and all liability for the accuracy or completeness of the information contained herein.