Enterprise Medianet Quality of Service Design 4. Overview. Drivers for Qo. S Design Evolution. There are three main sets of drivers pressuring network administrators to reevaluate their current Qo.

In Queue Viewer, click the Queues tab.

S designs (each is discussed in the following sections): New applications and business requirements. New industry guidance and best practices. New platforms and technologies. Cara Install Windows Xp Di Netbook Vs Notebook.

New Applications and Business Requirements. Media applications—particularly video- oriented media applications—are exploding over corporate networks, exponentially increasing bandwidth utilization and radically shifting traffic patterns. For example, according to recent studies, global IP traffic will nearly double every two years through 2. Businesses recognize the value that media applications—particularly video- based collaborative applications—bring to the enterprise, including: Increasing productivity.

Improving the quality of decision making. Speeding time- to- market. Facilitating knowledge sharing. Fueling innovation. Reducing travel time and expenses. Protecting the environment.

Corresponding to these values and benefits of media applications, there are several business drivers behind media application growth, including: Evolution of video applications. Transition to high- definition media. Explosion of media. Phenomena of social networking.

Emergence of “bottoms- up” media applications. Convergence within media applications. Globalization of the workforce. Pressures to go green.

E-Business Suite and Fusion Middleware Best Practice Center: Blog Entries. Do you know. Simple Mail Transfer Protocol (SMTP) is an Internet standard for electronic mail (email) transmission. First defined by RFC 821 in 1982, it was last updated in 2008. Windows Virtual Machines. Provision virtual machines for SQL Server, SharePoint, and more. The default configuration for a WebSphere MQ queue manager functions well with average processing loads, but is not optimised for performance. This article shows you.

Web + Mobile. Web + Mobile; App Service Quickly create powerful cloud apps for web and mobile.

These business drivers briefly described in the following sections. The Evolution of Video Applications. When the previous Cisco Enterprise Qo. S Design Guide was published (in 2.

Interactive video—Generally describes H. Streaming video—Generally describes streaming or video- on- demand (Vo. D) applications; video flows were unidirectional (either unicast or multicast) and were not time- sensitive (due to significant application buffering).

However, at the time of writing this document (2. Figure 1- 1. Figure 1- 1Video Application Evolution. Consider first the streaming video branch—the earliest sets of video applications were Vo. D streams to the desktop. Vo. D streams can include pre- recorded content such as employee communications, training, e- learning, and social- interaction content. Today, due to the ease of content creation, on- demand content may either be professionally- produced (top- down) or self- produced (bottom- up). It is important to also note that not all Vo.

D content is necessarily business- related, as non- business, entertainment- oriented content is often widely available for on- demand video viewing. Vo. D applications soon expanded to include the development and support of “live” or “broadcast” video streams to the desktop. Broadcast streams may include company meetings, special events, internal corporate announcements or similar content. As such, broadcast streaming video content is typically professionally- produced, top- down content. Thereafter, with the proliferation of flat- screen digital displays, it became increasingly apparent that the desktop is not the only display option for streaming video. Thus, digital signage began to emerge as another streaming video application (for both on- demand and broadcast video streams). Digital signage refers to centrally- managed publishing solutions for delivering digital media to networked displays.

For example, Cisco offers a Digital Media Player and an enterprise TV solution that works in conjunction with its Digital Media System to support a comprehensive digital signage solution. Digital signage can be used to broadcast internal information, such as sharing up- to- date schedules and news where people need it most or providing realtime location and directional guidance.

Additionally, digital signage is an effective tool for marketing, helping companies to promote products and services directly to customers. Around the same time that digital signage was being developed, the advantages that IP brought to video were being gradually being applied to the video surveillance market. These advantages include the ability to forward live video streams to local or remote control centers for observation and efficient processing. Cisco offers comprehensive IP surveillance (IPVS) solutions, including IP cameras, hybrid analog- to- digital video gateways (to facilitate transitioning from closed- circuit TV surveillance solutions to IPVS), and IPVS management applications. Interestingly, video surveillance has a unique degree of interactivity not found in any other streaming video application, namely, that of having an observer “interact” with the video stream by sending control information to the transmitting video camera, for instance, to track an event- in- progress.

On the interactive video side of the video application hemisphere, there has also been considerable application evolution. Basic video conferencing applications, which were initially dedicated room- based units, evolved into software- based PC applications. The factors behind this shift from room- based hardware to PC- based software were two- fold: The convenience of immediate desktop collaboration (rather than having to book or hunt for an available video- conferencing enabled room).

The availability of inexpensive Webcams. Desktop video conferencing may be utilized on a one- to- one basis or may support a few participants simultaneously. Once video conferencing moved to software, a whole new range of communication possibilities opened up, which morphed desktop video conferencing applications into multimedia collaboration applications. Multimedia collaboration applications, including Cisco Unified Personal Communicator (CUPC) and Cisco Web. Ex, share not only voice and video, but also data applications, such as instant messaging, document and presentation sharing, application sharing, and other integrated multimedia features. However, not all interactive video migrated to the desktop.

Room- based video conferencing solutions continued to evolve and leveraged advances in high- definition video and audio, leading to solutions like Cisco Tele. Presence. Additionally, application sharing capabilities—borrowed from multimedia conferencing applications—were added to these high- definition room- based video conferencing solutions. And video application evolution doesn’t end here, but will continue to expand and morph over time as new demands and technologies emerge. The Transition to High- Definition Media. One of the reasons traditional room- to- room video conferencing and desktop Webcam- style video conferencing are sometimes questioned as less than effective communications systems is the reliance on low- definition audio and video formats.

On the other hand, high- definition interactive media applications, like Cisco Tele. Presence, demonstrate how high- definition audio and video can create an more effective remote collaboration experience, where meeting participants actually feel like they are in the same meeting room. Additionally, IP video surveillance cameras are migrating to high- definition video in order to have the digital resolutions needed for new functions, such as pattern recognition and intelligent event triggering based on motion and visual characteristics. Cisco fully expects other media applications to migrate to high- definition in the near future, as people become accustomed to the format in their lives as consumers, as well as the experiences starting to appear in the corporate environment. High- definition media formats transmitted over IP networks create unique challenges and demands on the network that need to be planned for. For example, Figure 1- 2 contrasts the behavior of Vo.

IP as compared to high definition video at the packet level. Figure 1- 2Vo. IP versus High- Definition Video—At the Packet Level. The network demands of high- definition video include not only radically more bandwidth, but also significantly higher transmission reliability, as compared to standard- definition video applications.

SBCL 1. 3. 2. 0 User Manualsbcl. This manual is part of the SBCL software system.

See the. README file for more information. This manual is in the public domain and is. See the COPYING and. CREDITS files for more information.

As an anti- spam. Remember that the people answering your question are volunteers, so. Checking the bug. See Reporting Bugs, to see if the issue. Use it to identify service.

Please. feel free to ask for advice on the sbcl- help list. The bug database is available at. Reporting bugs there requires registering at Launchpad. However, bugs. can also be reported on the mailing list sbcl- bugs, which is. Is this a bug? Substitute $ebp with $rbp.

The backtraces will appear in the stdout of the SBCL. This manual focuses on behavior which is specific to SBCL. ANSI Common. Lisp. Unfortunately, not all of these.

See Foreign Function Interface. See sb- grovel. See Extensible Sequences. See Threading. See Networking. See Gray Streams. See Simple Streams.

See Deterministic Profiler. See Statistical Profiler. See Customization Hooks for Users.

See sb- aclrepl. See sb- rotate- byte. This general. principle, and its implications, and the bugs which still keep the. Declarations as Assertions.

While this is obviously suboptimal, it has. A more traditional interpreter is also available on. Many implementations of Common Lisp. Often such. code can be rewritten in portable ANSI Common Lisp which has the.

E. g., the code above can be given an exactly defined. In circumstances. Subscribing to the mailing lists. SBCL development. The extensions. for functions which have their own command prompts (e.

The extensions for functions. SBCL was. compiled with an option not to include documentation strings, in which.

Various special interest mailing. IRC tend to provide more content and less flames. However, we don't have any. If you can't decide, try checking the Usenet. FAQ for recent recommendations.

Available. both in print format and on the web: http: //www. Whether or not your work is AI, it's a very good. Free Download Super Bounce Out Pc here.

This one does. Even if you're very. OO in Common Lisp. This book tends to help with the culture. Section 2 (Chapters 5 and 6) are. However. a little knowledge can be helpful in order to understand error. Some design decisions from that time are.

The system expects to be loaded into a fixed- at- compile- time location. The. most important is that on some architectures it has a generational. GC”), which has various implications (mostly. These are discussed in another chapter. Efficiency. This is a change in. ANSI specification section 3.

Evaluation”). It does not mean SBCL. SBCL still can and does execute code. More complicated forms. This port was in.

CMUCL ports, since a. Some things (like tracing and debugging) do not work. SBCL should be able to improve in these areas. This means that it doesn't maintain a strict. This. has some negative consequences for average time efficiency (though.

GC on a processor architecture as register- poor as. X8. 6) and also has potentially unlimited consequences for. In practice, conservative garbage.

But they can occasionally cause odd patterns of memory usage. CMUCL has for many years tolerated a very unusual. This quasi- build procedure can cause various. It also makes the connection between the current source. CMUCL system. containing characteristics not reflected in the current version of the.

IP networking. remote procedure call, Unix system interface, and X1. Most of these are available as contributed modules.

SBCL) or third- party modules instead. For example, the SBCL compiler no longer implements.

SBCL. itself. SBCL supports. If multiple threads call exit with abort. Once current thread has been unwound and *exit- hooks* have been.

The system then waits. Those threads that do not finish.

Since. terminate- thread is asynchronous, getting multithreaded application. To. perform an orderly synchronous shutdown use an exit hook instead of. This functionality is important for its bootstrapping. The. default function handles command line toplevel option processing.

This function returning. Executable images. This also inhibits normal runtime option processing, causing.

This takes. somewhat longer than the normal gc which is otherwise done, but. GC's will be done less often. See the purify. function.

This parameter has no effect on platforms using the. This need not be supplied, but locality and/or gc performance. This has two different but related meanings. If : purify is true - and only for cheneygc - the root structures. If nil (the default), saves to uncompressed core files. If. : sb- core- compression was enabled at build- time, the argument may also be.

The default is : console. Applications using multiple threads can. This can be worked around by forking. Even runtimes built from the same. If the. function returns nil, no sysinit file is used unless one has been.

See Debugger Entry. Some command line. Common Lisp system, and any remaining. Omitting these. elements can be convenient when you are running the program.

Omitting these elements is probably a. SBCL to detect erroneous. Lisp system. Note that if. Lisp core file is a user- created core file, it may run a. Default. value is platform dependent.

Default. value is 2. This makes it easier to write Lisp programs which work. Unix pipelines. See also the - -noprint and. Only effective if SBCL is compiled.

LDB. By default SBCL prints a warning, then tries to continue and. Lisp, but this will not always work and SBCL may. With this option, upon encountering such an. SBCL will invoke ldb (if present and enabled) or else exit. See the. description of - -script as a toplevel option below. If there. are no other command line arguments following - -script, the. More than one - -eval option can be used, and all will be.

The. special syntax is intended to reduce quoting headaches when invoking. SBCL from shell scripts.

Combined with the - -noinform runtime. Lisp . When given, this option takes effect. See sb- ext: disable- debugger for details. If the file begins with a. Shebang lines in standard input script are currently. This allows e. g. Can be overridden with the command line option.

Can be overridden with the. Efficiency issues are sufficiently varied and. Efficiency. 1. 0) (*PRINT- LEVEL* . PRINT- PRETTY* . NIL)). The variables in the car positions are bound to the values in the cdr. When evaluating arbitrary. The sb- ext: code- deletion- note, a.

The messages will be. The main problem with this program is that it is trying to add. Note also that the functions roq and. It is obtained by taking the first two elements of. If there is no such enclosing “.

If there are multiple . In this example, the problem was in the defun for. Original source means that the form directly appeared.

In. this example, the expansion of the zoq macro was responsible. The processing path is a representation of the evaluated. The path is the first element of each.

These forms result. In this example, the enclosing evaluated forms are. These calls resulted from the. If the actual source appears in the explanation, then we. In this example, the problem is that, while the call to. In this case, the compiler omits as. For example. ; file: /tmp/foo.

DEFUN FOO. ; (ZOQ Y). ROQ. ; (PLOQ (+ Y 3)). STYLE- WARNING. ; undefined function: PLOQ. ROQ (PLOQ (+ Y 3))). STYLE- WARNING. ; undefined function: ROQ. In this example, the file, definition and original source are.

If consecutive messages are entirely identical, then. If. the actual source is the same as the original source, then the. If no forms. intervene between the original source and the actual source, then the.

If. the actual source for an message is a symbol, the original source will. So even if the. offending symbol does appear in the original source, the compiler will. When the actual source is displayed (and is not a symbol), it. This is code that did not.

For example, compiling this function. DEFUN BAR. ; (LET (A). DECLARE (FIXNUM A)). SETQ A (FOO X)). ; caught WARNING. Asserted type FIXNUM conflicts with derived type (VALUES NULL & OPTIONAL). In this example, the problem is that a's.