Computer Networks - Performance and QOS by I. Marsic

By I. Marsic

Show description

Read Online or Download Computer Networks - Performance and QOS PDF

Best protocols & apis books

Deploying Secure 802.11 Wireless Networks with Microsoft Windows

Get in-depth technical assistance to aid maximize defense for instant networking infrastructures for pcs operating home windows XP, home windows Server 2003, or home windows 2000. The ebook completely information the best way to enforce IEEE 802. 11b instant LAN networking and its comparable authentication applied sciences for a home windows setting.

Virtualization For Dummies

Virtualization has turn into a “megatrend”—and for strong cause. imposing virtualization makes it possible for extra effective usage of community server capability, easier garage management, diminished strength expenses, and higher use of company capital. In different phrases: virtualization is helping you get monetary savings, strength, and area.

Professional Microsoft Sharepoint 2007 Workflow Programming

Specialist Microsoft SharePoint 2007 Workflow Programming . SharePoint 2007 offers both
workflow and task builders with wealthy workflow programming amenities, which permit them to
implement and installation their very own customized SharePoint workflows and activities.
This booklet offers a number of specific step - through - step recipes for constructing and deploying SharePoint
workflows and actions, and diverse genuine - global examples during which those recipes are used. This book
uses an method in keeping with research of designated code and in - intensity technical discussions that can assist you gain
the talents, wisdom, and event you want to boost and set up your individual customized SharePoint
workflows and activities.

Introduction to Networking with Network+

Advent to Networking with community + is the cornerstone for  your networking curriculum. it really is equipped round the new  Network+ 2012 framework. it really is dependent upon the CompTIA  Network+ certification and covers the latest examination  objectives.   Are you bored with books that hide new applied sciences and examination  topics in a fleeting model, and are slowed down with legacy  technology insurance that's now out-dated?

Additional resources for Computer Networks - Performance and QOS

Example text

2). The sender usually doubles the range of backoff delays for every failed transmission, which is why this method is also known as binary exponential backoff. Increasing the backoff range increases the number of choices for the random delay. This, in turn, makes it less likely that several stations will select the same delay value and, therefore, reduces the probability of repeated collisions. It is like first deciding how long to wait by tossing a coin (two choices: heads or tails); if both make the same choice and again experience a collision, then they try by rolling a dice (six choices), etc.

In general case it is required that N ≤ W. The sliding window sender should store in local memory (buffer) all outstanding packets for which the acknowledgement has not yet been received. Therefore, the send buffer size should be N packets large. The sent-but-unacknowledged packets are called “in-flight” packets or “intransit” packets. The sender must ensure that the number of in-flight packets is always ≤ N. The sliding window protocol is actually a family of protocols that have some characteristics in common and others different.

Buffering generally uses the fastest memory chips and circuits and, therefore, the most expensive memory, which means that the buffering space is scarce. Disk storage is cheap but not practical for packet buffering because it provides relatively slow data access. During network transit, different packets can take different routes to the destination, and thus arrive in a different order than sent. The receiver may temporarily store (buffer) the out-of-order packets until the missing packets arrive.

Download PDF sample

Rated 4.56 of 5 – based on 17 votes