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 e-book on converged community layout applied sciences. The publication covers quite a lot of applied sciences present in modern day networks together with easy routing and switching, VoIP, instant, and QoS among others.
One of the issues with writing any such ebook is that the record of themes to hide is so huge that it isn't attainable to offer anybody of them in nice element. As such, the authors have a tough job of keeping the stability among an excessive amount of aspect and a smooth, marketing-type of insurance of the subjects. during this specific case, the authors be capable to tread this positive line with nice effectiveness. the themes are coated in good-enough element to make the fabric invaluable and informative for all readers whereas retaining stability and cohesiveness within the presentation of the entire subject matters with the intention to now not lose somebody within the process.
The total association of the publication lends itself to a logical circulate of knowledge. It starts off with the overall layout strategy for construction details networks, through presentation of applied sciences utilized in those networks, and at last finishing with functional layout examples to demonstrate those subject matters. this enables the reader to understand the knowledge in a modular model, development at the earlier wisdom as you move throughout the ebook.
The more thing to notice is that the authors aren't afraid to get into information whilst such information 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 provides a few fascinating information regarding compression schemes and ability calculations for IP telephony.
The ultimate chapters current a case examine the place all the formerly discovered suggestions are placed to take advantage of in designing a community for a hypothetical company. those chapters translate into a great precis of the cloth provided within the prior chapters.
Experienced readers may perhaps locate many of the details within the publication to be introductory yet that's as a result of the nature of the fabric being awarded. for instance, the knowledge in terms of switching and routing is simple because it's a good verified expertise and most of the people operating within the networking area are skilled with it. VoIP nevertheless is new and as such might come 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 outstanding, stable primer on converged community applied sciences. in the earlier couple of years, networking expertise is creating a concerted shift in the direction of unification of communique wishes together with voice, information, and video. This publication offers a finished evaluation of the applied sciences used to make this shift attainable. I hugely suggest this to someone fascinated about designing, enforcing, or handling converged networks.
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Extra info for Campus Network Design Fundamentals
On the left side of the figure, three individual physical LANs are shown, one each for Engineering, Accounting, and Marketing. ) Instead of physical LANs, an enterprise can use VLANs, as shown on the right side of the figure. With VLANs, members of each department can be physically located anywhere, yet still be logically connected with their own workgroup. Thus, in the VLAN configuration, all the devices attached to VLAN E (Engineering) share the same broadcast domain, the devices attached to VLAN A (Accounting) share a separate broadcast domain, and the devices attached to VLAN M (Marketing) share a third broadcast domain.
2. com/go/safe. 3. Ibid. Part II: Technologies: What you Need to know and why you Need to know it Chapter 2 Switching Design Chapter 3 IPv4 Routing Design Chapter 4 Network Security Design Chapter 5 Wireless LAN Design Chapter 6 Quality of Service Design Chapter 7 Voice Transport Design Chapter 8 Content Networking Design Chapter 9 Network Management Design Chapter 10 Other Enabling Technologies Chapter 2. Switching Design This chapter discusses switching network design and includes the following sections: • • • • • • • Making the Business Case Switching Types Spanning Tree Protocol Virtual LANs Multilayer Switching and Cisco Express Forwarding Switching Security Switching Design Considerations This first chapter in Part II, "Technologies: What You Need to Know and Why You Need to Know It," discusses switching network design.
VTP pruning is a VTP feature that helps reduce the amount of flooded traffic (including broadcast, multicast, and unicast) that is sent on the network. With VTP pruning enabled, the switches communicate with each other to find out which switches have ports in which VLANs; switches that have no ports in a particular VLAN (and have no downstream switches with ports in that VLAN) do not receive that VLAN's traffic. For example, in Figure 2-8, switch 4 has no need for VLAN A traffic, so VTP pruning would prevent switch 1 from flooding VLAN A traffic to switch 4.