The last several years have seen the usual sea of change in IT—and by extension IT security — systems. Moore’s Law, in addition to describing advancements in computing power, has led to more complex algorithms for encryption. The ability to process more has, for example, driven SSL encryption key sizes from 256 bits to 4 […]

Secure remote access safeguards sensitive data transmission when applications are accessed from devices outside of the corporate network.

SIP (session initiation protocol) is an IP telephony standard developed by the IETF to manage the creation and destruction of voice-related IP networking sessions. As voice, data, and video communications become more integrated using IP-based networks, applications will increasingly use SIP signaling technology to manage connections. A text-based protocol, it is similar to HTTP and is therefore faster and easier to […]

Rate shaping enables organizations to manage bandwidth to ensure that priority applications are delivered without delay.

Replication is the process of copying files. These copies can be made either locally or remotely to ensure data availability in the event of accidental deletion, equipment failure, or some other mishap.

A reverse proxy is used to provide load balancing services and, increasingly, to enforce web application security at strategic insertion points in a network through web application firewalls, application delivery firewalls, and deep content inspection.

RFC 3588 is a release of the Diameter base protocol that the Internet Engineering Task Force (IETF) issued in 2003. RFC 3588 set standards for the newly developed Diameter base protocol, which was intended to overcome the limitations of the former protocol RADIUS. The Diameter base protocol provides an authentication, authorization, and accounting (AAA) framework for applications […]

RFC 6733 (formerly known as 3588 bis) documents the latest Diameter protocol specifications and was released at the end of 2012 by the Internet Engineering Task Force (IETF). The release of this new standard makes the previous RFC 3588 (Diameter base protocol) and 5719 obsolete. Diameter is the base protocol for authentication, authorization, and accounting (AAA), […]

Recovery point objective (RPO) is the maximum acceptable amount of data loss after an unplanned data-loss incident, expressed as an amount of time. This is generally thought of as the point in time before the event at which data can be successfully recovered — that is, the time elapsed since the most recent reliable backup.

A Network Management Station (NMS) is a server that runs a network management application. Network elements communicate with the NMS to relay management and control information. The NMS also enables network data analysis and reporting.