By Mike Flannagan
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, facts, and video over a unmarried built-in structure, while long ago 3 separate platforms have been required.
Administering Cisco AVVID functions is a certified reference detailing the ideas, strategies, and strategies for using Cisco software program to configure and continue Cisco networks and infrastructures. It contains thorough discussions of severe themes resembling, 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 good points, and Cisco IOS network-wide software.
* permits IP specialist 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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Extra resources for Administering Cisco QOS for IP Networks
If host A wanted to send a packet to host F, then host A, through the ANDing process, would determine whether or not host F was on the local subnet. 6). com 110_QoS_01 2/13/01 6:35 PM Page 19 Cisco IOS Feature Review • Chapter 1 Why Do We Need VLSM? VLSM has become a very important part of networks. VLSM gives us a way around the TCP/IP address shortage by breaking down classful addresses into more efficient and manageable blocks. Consider the example of a company that requires a minimum of 30 addresses per Ethernet and 2 address per serial link.
There are many reasons that your network may experience latency or slow periods. com 21 110_QoS_01 22 2/13/01 6:35 PM Page 22 Chapter 1 • Cisco IOS Feature Review latency without bringing any real value to a network. Fortunately, Cisco routers equip you with the tools to manage this type of traffic. Access Control Lists (ACLs), in their simplest form, test a packet against a set of rules. If the packet matches the rules, it is then either permitted or denied. It is critical to note that at the end of every ACL is an implied “deny all” statement.
Common Ports Used with Extended ACLs The following tables provide extensive lists of all the options you can implement to give you more granular control if you use the eq option in the TCP variable of this command. 17). 17 that extended Access Control Lists can be very granular and give very specific control over a variety of network traffic. You must be selective when implementing extended Access Control Lists. com 110_QoS_01 2/13/01 6:35 PM Page 33 Cisco IOS Feature Review • Chapter 1 To apply this control to a specific interface, you would go into the related interface configuration mode and use the access-group command.
Administering Cisco QOS for IP Networks by Mike Flannagan