Download e-book for iPad: Administering Cisco QOS for IP Networks by Mike Flannagan

By Mike Flannagan

ISBN-10: 1928994210

ISBN-13: 9781928994213

AVVID (Architecture for Voice, Video, and built-in Data), the newest improvement from Cisco platforms is redefining the best way companies converse. AVVID permits companies to transmit voice, info, and video over a unmarried built-in structure, while some time past 3 separate platforms have been required.

Administering Cisco AVVID functions is a qualified reference detailing the recommendations, strategies, and techniques for using Cisco software program to configure and retain Cisco networks and infrastructures. It contains thorough discussions of serious themes comparable to, Cisco CallManager model 3.0, Cisco Unified Open community alternate 4.1E (uOne), WebLine and GeoTel product software program, Cisco QoS coverage Manger 1.1 in addition to many different QoS gains, and Cisco IOS network-wide software.

* permits IP expert to get forward during this growing to be field
* call for for engineers and directors who comprehend the specifics of the Cisco AVVID is growing to be fast - this ebook has the answers

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0 network to bounce between routers, creating a routing loop. As seen in this example, routing loops can be very detrimental to a network and can actually bring a network to a complete halt. Precautionary measures have been implemented in distance vector protocols to help prevent these loops. Without preventative measures, the packets will continue to loop indefinitely. Defining infinity prevents this loop from occurring indefinitely. For example, RIPv1 by default defines infinity as a hop count of 16.

In addition, keep in mind that hops are not part of the metric calculation for determining the best path, but a limiter to ensure against looping and sub-optimal routing. TIP Distance vector protocols are inadequate in really large network models. Although IGRP implements a stronger metric then RIPv1, it is still a distance vector protocol, which may be substandard for larger networks. To configure IGRP, use the following syntax at the global configuration prompt on the router that you want to configure.

An easy way to think of this is that CIDR reduces the size of the network mask, while subnetting increases the size of the network mask. CIDR is also known as supernetting. The number after the slash represents the number of bits that are masked, a topic discussed later in this chapter. com 7 110_QoS_01 8 2/13/01 6:34 PM Page 8 Chapter 1 • Cisco IOS Feature Review Class B address scheme gives a total of 65,384 networks and hosts per network. The Class C address scheme gives a total of 16,777,216 networks, which give 254 hosts per network.

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Administering Cisco QOS for IP Networks by Mike Flannagan


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