What does it do?
The two types of remote access determine the way a comm server is configured. With remote control, the remote user basically sends keystroke data, and receives screen output, while the actual processing takes place internal to the communications server. This is the type of functionality provided by a local PC with a modem running PCanywhere or Reachout. This type of remote access may be accommodated in a communications server by having several processors in the server to accommodate multiple remote users. With remote node access, the remote user actually becomes an apparent node on the network, any data that would have been transmitted to a local node is sent to the remote user, and the remote workstation functions exactly as it would if attached locally to the network. This type of comm server typically uses a high speed dedicated CPU, such as a RISC processor, that filters, converts and transmits network traffic across the remote link.

How is it used?
With an occasional need for a remote user to dial into the network, it is usually sufficient to provide a PC on the network with a modem and some remote access software. The remote user, with a corresponding modem and software, can dial in and remotely control the PC, and may have some limited file transfer capability to the remote system. As more and more users require remote access to the network, it soon becomes cost prohibitive and inefficient to add additional PCs and modems. This is where the communications server finds its application. A communications server provides a centralized, dedicated system on the network to handle medium to large-scale requirements for remote network access. It also provides a central point of egress from the local network to the outside world.

Where do I get more information?
Contact your local CBV Office.