AT&T® LAN Interconnect Service
AT&T® LAN Interconnect Service lets you link Ethernet or Token Ring LANs at the same site or different sites. Connecting LANs in different locations gives you a single, powerful resource, letting users communicate quickly and efficiently.

LAN Interconnect Service can link up to 16 LANs of the same type and speed in either point-to-point or multipoint configurations. Once they're connected, your formerly separate LANs can functions as one network—sharing files, images, electronic mail, and faxes. You will also be able to give your users access to remote databases, and to peripherals such as plotters, color printers, CD-ROM drives, and scanners. These capabilities let you increase your productivity and take full advantage of your LAN investment.

LAN Interconnect Service lets several inter-LAN applications travel over the same line. Your traffic speeds over AT&T's LAN Interconnect backbone at 100 megabits per second (Mbps) with high-performance and reliability—thanks to AT&T's fiber-optic facilities.

LAN Interconnect Service's ring architecture also offers you optional backup transmission paths. Additional backup paths let you customize your network's redundancy to meet your particular needs and budget.

You get...

Maximize Investment—LAN Interconnect Service lets widely dispersed users share peripherals and other resources, maximizing your LAN investment.

Savings—LAN Interconnect Service connects your LANs without the cost of additional bridges or routers.

Transparency—The addition of LAN Interconnect Service is transparent to your existing network management systems, letting you continue to use them.

Productivity—LAN Interconnect Service improves your business's productivity by letting users share critical information quickly and access the resources they need.

Reliability—LAN Interconnect Service carries your data over AT&T's highly reliable and closely monitored fiber-optic facilities.

It's good for...

Electronic mail
File sharing
Facsimile mail
Image processing

How It Works

In AT&T's Network

AT&T's network carries your LAN traffic over a high-speed fiber-optic backbone, multiplexing your signals to their backbone's higher transmission speed. It's exceptional reliability comes from it's ring architecture—an architecture that, as an option, lets you establish redundant paths to increase your network's survivability. Line addresses at each site tell AT&T's network whether to route your traffic point-to-point or to all LANs (multipoint).

At Your Premises

Each of your LANs connect to LAN Interconnect Service via a dedicated fiber-optic cable. Each line must terminate at ISO/IEC 8802-5 compatible adapters for token-ring LANs, ISO/IEC 8802-3 compatible adapters for Ethernet LANs, or CSU/DSUs for a DS1 interface. If you connect LANs with different signaling protocols, your equipment must perform the necessary protocol conversions.

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