Building Cisco Remote Access Networks (Syngress) by Wayne Lawson

By Wayne Lawson

More and more businesses are designing and enforcing distant entry Networks, which permit clients who're now not bodily attached to a large sector community (WAN) or neighborhood sector community (LAN) to entry the network's servers, functions and databases or to take part in video conferencing and convention calls. the facility for a distant consumer to operate as though they have been within the subsequent workplace dramatically improves total potency whereas decreasing overall price of possession. Cisco structures, the world's greatest internetworking seller, is the pioneer of the allowing applied sciences for distant entry Networks. This ebook will determine and clarify all the Cisco items valuable for designing and development a distant entry community and integrating it with legacy platforms. This booklet is a certified reference detailing all the concepts, strategies and strategies for designing, configuring and keeping Cisco distant entry Networks. it is going to contain thorough discussions of all Cisco entry Servers and routers. * call for for info on distant entry networks is transforming into quick at company and administrator point * Cisco distant entry networks attract companies as they supply effective and safe connectivity at lowered fee * booklet comprises thorough discussions of all Cisco entry Servers and routers

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The type of encapsulation used depends on the modules or built-in interfaces on your router, the type of WAN technology chosen to transport the information, and the commands used to configure the interface. 25 ■ Frame Relay ■ Asynchronous Transfer Mode (ATM) SDLC IBM originally developed SDLC in the mid-1970s for use with the Systems Network Architecture (SNA) protocol. A bit-oriented synchronous protocol that is the predecessor of HDLC, you generally will not find it in wide use. HDLC The HDLC protocol is the default encapsulation set on Cisco synchronous serial interfaces.

This significantly increases the amount of bandwidth available. This concept is also discussed in Chapter 3. 25 is a packet-switching protocol designed for the exchange of data over a WAN. com 93_sbcran_Ch01 10/16/00 8:50 AM Page 13 Introduction to BCRAN and Cisco Remote Access Solutions • Chapter 1 13 noisy, low-speed, analog lines. High overhead and more modern technology make this a poor choice for today’s networks. Frame Relay Frame Relay is also an industry standard packet-switching solution for WAN connections.

Again, most of the modules are shared with the 1600, 1700, and 2600 series routers. AS5000 Series This line of universal integrated access servers combines the functions of stand-alone CPUs, modems, communications servers, switches, and routers all in one chassis, suitable for implementation from a central office to ISP. The modular design supports three and 14 slots on the AS5300 and AS5800, respectively, with modules that support up to 12 T1/E1/PRI interfaces, two channelized T3 lines, and 144 modems per card.

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