Download e-book for iPad: Campus Network Design Fundamentals by Diane Teare

By Diane Teare

Campus community layout basics (ISDN 1-58705-222-9) by way of Diane Teare and Catherine Paquet is an introductory to mid-level booklet on converged community layout applied sciences. The publication covers a variety of applied sciences present in state-of-the-art networks together with easy routing and switching, VoIP, instant, and QoS among others.

One of the issues with writing this type of booklet is that the record of issues to hide is so huge that it isn't attainable to provide anyone of them in nice aspect. As such, the authors have a tricky job of keeping the stability among an excessive amount of aspect and a modern, marketing-type of insurance of the subjects. during this specific case, the authors be capable of tread this high quality line with nice effectiveness. the subjects are coated in good-enough aspect to make the fabric invaluable and informative for all readers whereas keeping stability and cohesiveness within the presentation of all the themes which will now not lose somebody within the process.

The total association of the publication lends itself to a logical move of data. It begins with the final layout method for construction info networks, via presentation of applied sciences utilized in those networks, and at last finishing with sensible layout examples to demonstrate those issues. this enables the reader to know the knowledge in a modular style, construction at the earlier wisdom as you move during the e-book.

The more thing to notice is that the authors aren't afraid to get into info whilst such info are important. The bankruptcy facing QoS is an efficient instance of this. The authors dissect the TOS box within the packet header in a few element. one other instance is the VoIP bankruptcy which offers a few attention-grabbing information regarding compression schemes and capability calculations for IP telephony.

The ultimate chapters current a case examine the place the entire formerly realized options are placed to take advantage of in designing a community for a hypothetical company. those chapters translate into a great precis of the cloth awarded within the prior chapters.

Experienced readers could locate a few of the details within the booklet to be introductory yet that's end result of the nature of the cloth being provided. for instance, the data with regards to switching and routing is simple since it's a good verified know-how and most of the people operating within the networking area are skilled with it. VoIP however is new and as such may perhaps stumble upon as new details. To the authors' credits, they current the extra recognized subject matters earlier than the fewer famous ones.

This e-book should still function an excellent, good primer on converged community applied sciences. in the previous couple of years, networking know-how is creating a concerted shift in the direction of unification of verbal exchange wishes together with voice, facts, and video. This booklet offers a finished review of the applied sciences used to make this shift attainable. I hugely suggest this to somebody interested by designing, enforcing, or handling converged networks.

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Secure Shell SSH is a protocol that is similar to Telnet, but SSH uses encryption for security. SSH usually uses TCP port 22. Catalyst native security can protect networks against serious threats originating from the exploitation of MAC address vulnerabilities, ARP vulnerabilities, and Dynamic Host Configuration Protocol (DHCP) vulnerabilities. ) Table 2-1 shows some examples of the protection provided by the built-in intelligence in Catalyst switches. Table 2-1. Examples of Built-In Intelligence to Mitigate Attacks Attack Native Security (Built-In Intelligence) to Mitigate Attacks DHCP Denial of Service (DoS) Trusted-State Port A DHCP DoS attack can be initiated by a hacker.

Layer 3 switches are typically used in this module to provide both the high performance of Layer 2 switching and the Layer 3 routing and filtering capabilities. Edge Distribution Module The Edge Distribution module is the interface between the Enterprise Campus (through the Core submodule) and the Enterprise Edge functional areas. This module typically uses Layer 3 switching to provide high-performance routing, similar to the Server module. Redundancy is again implemented in this module to ensure that the campus users always have access to the Enterprise Edge.

We then introduce STP terminology and operation. Note In the following sections, we are only concerned with Layer 2 switching; as you see in Chapter 3, routed (Layer 3) networks inherently support networks with multiple paths, so a protocol such as STP is not required. Redundancy in Layer 2 Switched Networks Redundancy in a network, such as that shown in Figure 2-3, is desirable so that communication can still take place if a link or device fails. For example, if switch X in this figure stopped functioning, devices A and B could still communicate through switch Y.

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