overview of network stack
Understanding Linux Network Internals 2005 phần 1 pps
Ngày tải lên :
13/08/2014, 04:21
... Variables Featured in This Part of the Book Section 12.4 Files and Directories Featured in This Part of the Book Chapter 13 Protocol Handlers Section 13.1 Overview of Network Stack Section 13.2 Executing ... performance of a pure software-based product that uses Linux cannot compete with commercial products that can count on the help of specialized hardware This of course is not a criticism of software; ... lack of good documentation about the networking code of the Linux kernel and the availability of good books for other parts of the kernel, I decided to try filling in the gapor at least part of...
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Understanding Linux Network Internals 2005 phần 2 pdf
Ngày tải lên :
13/08/2014, 04:21
... worth studying to help you understand how core components of the networking stack are initialized, including NIC device drivers The purpose of this chapter is to show how the kernel handles routines ... resolves the association between keywords and handlers I will offer a high-level overview of how the kernel parses the input string How the networking device subsystem uses this feature All the parsing ... section "Memory Optimizations." 7.1.4 Use of Boot Options to Configure Network Devices In light of what we saw in the previous sections, let's see how the networking code uses boot options moc.fdpopmis.www//:ptth...
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Understanding Linux Network Internals 2005 phần 3 pptx
Ngày tải lên :
13/08/2014, 04:21
... maximum number of CPUs the Linux kernel can handle andsoftnet_data is a vector of struct softnet_data structures The code also initializes the fields of softnet_data->blog_dev, a structure of type net_device, ... burst of traffic as congestion In the Linux network stack, average queue length is reported by two fields of the softnet_data structure, cng_level and avg_blog, that were introduced in "softnet_data ... and will take care of the remaining buffers: softnet_break: _ _get_cpu_var(netdev_rx_stat).time_squeeze++; _ _raise_softirq_irqoff(NET_RX_SOFTIRQ); goto out; } Note that softnet_data net_rx_action...
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Understanding Linux Network Internals 2005 phần 4 docx
Ngày tải lên :
13/08/2014, 04:21
... a limit of 256 bridge ports, or a single bridge ID per MAC address However, it is not uncommon for big bridges to be equipped with hundreds of ports and to run hundreds of instances of bridges ... Regardless of why a configuration BPDU is transmitted out of a given port, the STP enforces rate limiting: a bridge cannot transmit more than one Configuration BPDU per second out of any of its ports ... minutes in complex scenarios due to the distributed nature of the STP algorithm Because of that, the number of BPDUs sent according to the rules of the section "When to Transmit Configuration BPDUs"...
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Báo cáo khoa học: Novel diadenosine polyphosphate analogs with oxymethylene bridges replacing oxygen in the polyphosphate chain pdf
Ngày tải lên :
16/03/2014, 04:20
... Comparison of binding and modes of reactivity of dinucleotides 3, and by the asymmetrically acting Ap4A hydrolases (A) Major cleavage of to bc-methyleneoxy-ATP; (B) minor cleavage of to bc-oxymethylene-ATP; ... the rate of AppppA) [22] They constitute a symmetrical mode of cleavage of by water attack at Pb The failure of these hydrolases to bring about a similar frameshift symmetrical hydrolysis of is ... a reduction in rate of about 10-fold for the formation of 18 relative to that of 32 Thus, the present kinetic results not provide any evidence for differential recognition of the alternative orientations...
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on merging hidden markov models with deformable templates
Ngày tải lên :
24/04/2014, 13:14
... total of five parameters - four for the rectangle, and one to specify the vertical position of the intersection of the parabolas Our test consisted of manually placing the template in frame of the ... facial distribution for “Chris”; (b) Result of applying this distribution to ‘ LHaluk” and applying threshold; (c) Probability of pixel being part of face for “Haluk” using distribution derived ... find an n by n square of pixels whose joint probability is greatest It also seems to implicitly use the fact that for the most part, the face of interest is near the center of the image This procedure...
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Báo cáo hóa học: " A New MAC Protocol with Pseudo-TDMA Behavior for Supporting Quality of Service in 802.11 Wireless LANs" docx
Ngày tải lên :
22/06/2014, 22:20
... Member of the academic staff of the Department of Electrical and Computer Engineering of the University of Patras and holds the position of Associate Professor Since 2004, he has been the Director of ... stationary probability of backoff state i, j, k, we can solve the system of equations for b1,0,0 The system of equations can be found in [20], as well We define the probabilities of accessing the channel ... that the behavior of admission is very much depended upon low-priority access conditions, which in cases of heavy loaded channels prevents the phenomenon of resource starvation of low-priority...
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Open distributed automation and control with iec 61499.pdf
Ngày tải lên :
20/08/2012, 11:15
... AUTOMATION AND CONTROL WITH IEC 61499 Basic Concepts of IEC 61499 Basic Concepts of IEC 61499 • Distributed applications • Object-oriented software encapsulation and reuse • Event and data interfaces ... 61499 Software Tool Requirements (1) Software Tool Requirements (1) • Information to be provided by tool supplier – Applicable library element type(s) – Engineering task(s) supported • Exchange of ... 22 OPEN DISTRIBUTED AUTOMATION AND CONTROL WITH IEC 61499 Software Tool Requirements (2) Software Tool Requirements (2) • Validation of declarations – as required by the associated engineering...
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Building Portals with the Java Portlet API
Ngày tải lên :
20/08/2012, 11:54
... weaknesses of portlets, and we give you an overview of some of the technologies that we cover more fully in later chapters Chapter 2: Portlet Basics This chapter provides an example of a simple ... AMOUNT of information that networked computers can present to us is both the marvel and the bane of our time Knowledge is commonly supposed to be power, but the reality is that we are often drowning ... required Some very basic knowledge of XML is useful All of our examples use standards or use open source software, so it will not be necessary for you to purchase any software to get started with portlet...
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Client Side Reporting with Visual Studio in S Sharp
Ngày tải lên :
20/08/2012, 13:42
... with every occurrence of a trademarked name, we use the names only in an editorial fashion and to the benefit of the trademark owner, with no intention of infringement of the trademark Java™ ... spends his time consulting and building software using Microsoft technologies Ty writes frequently about Microsoft technologies including SharePoint, Office, and SQL Server, and his articles ... e-mails full of encouragements A special thanks also goes to Diana May from SQL Server Magazine, Frank Beverdam of Dynamiczones.com, David Riggs of aspnetpro.com, and Steve Jones of sqlservercentral.com...
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Creating Cool Web Sites with HTML, XHTML, and CSS
Ngày tải lên :
27/08/2012, 09:03
... Navigator, or any of a variety of other programs XHTML is the modern “proper” version of HTML and is the future of the markup language Cascading Style Sheets are also part of that future, and ... and, of course, the newest member of my family, Kiana, for ensuring that I took sufficient breaks to avoid carpal tunnel syndrome or any of the other hazards of overly intense typing The time off ... tremendously expanded the proliferation of data As a result, separating information from the massive flood of data is one of the fundamental challenges of the age of information I can only imagine...
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How to do everything with web 2.0
Ngày tải lên :
27/08/2012, 13:55
... for limiting the number of photos returned, but beware of extrapolating from the minimal list of only one photo—always try to use at least two or three) The basic element of the response is an ... information you need to display the results of the query is provided in the XML returned from the method call You display some of that data directly In the case of the text, other data are used to display ... quickly find a way to add your idea of a connection to two or more data sources or representations of data This chapter presents a variation on the scenario of Chapters 15 and 16 In that case,...
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Chapter 9: Working with Selections and Selection Layers
Ngày tải lên :
27/08/2012, 14:31
... solid shades of gray in place of dots • Line: Tones with vertical lines instead of dots • Noise: Tones that use a random pattern of dots and other small shapes instead of a uniform series of dots ... many instances of manga, you can use the background of a panel to set up more than just location Often you’ll see patterns or other types of tones used to help convey a wide range of emotions within ... won’t see the wide variety of tools compared to the Pen tool What you see is a group of markers of various sizes and shapes (Examples of lines drawn with each type of marker are shown in Figure...
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