what is data link layer in the osi reference model responsible for

The OSI Reference Model

Ngày tải lên : 19/10/2013, 03:20

... substantial. 5.6 The Seven Layers of the OSI Reference Model 5.6.1 Layer 1: The Physical Layer The Physical Layer is responsible for the actual transmission of the data and the provision of the necessary ... message is composed of several pieces. The task of the Transport Layer in the OSI Reference Model is similar to that of the Data Link Layer and the Network Layer. At the time when OSI was defined, ... 5.4 Information Processing in the OSI Reference Model The tasks of the Layers 7 down to 2 mainly are to add processing information. When, for example, Layer 6 receives a primitive from Layer...

11
421
0

Báo cáo hóa học: " Editorial Cross-Layer Design for the Physical, MAC, and Link Layer in Wireless Systems" doc

Ngày tải lên : 21/06/2014, 22:20

... to in uence decisions in a layer that is originally not defined to use that information (e.g., the SNR information at the link layer or the queue size at the baseband module). The motivation for ... because the defining wireless features listed above have their strongest impact on these layers and their interaction. In recent years, the importance of the cross -layer design at the PHY/MAC /link layer ... would like to thank all the reviewers for their efforts in making this special issue. They would also like to thank the Editor -in- Chief, and the editorial staff of Hindawi Publishing Corporation. Petar...

3
376
0

nghiên cứu về tầng vật lý (physical) và tầng liên kết dữ liệu (Data Link) của mô hình OSI

Ngày tải lên : 23/08/2013, 10:37

27
1.4K
7

Tài liệu Module 7- Data Link Layer CCNA Exploration 4.0 pptx

Ngày tải lên : 22/12/2013, 13:17

... protocols. ã The Data Link layer "sees" the logical topology of a network when 24 ã The Data Link layer "sees" the logical topology of a network when controlling data access to the ... Creating a Frame 9 ã Framing breaks the stream into decipherable groupings, with control information inserted in the header and trailer as values in different fields. ã This format gives the ... Data Link Layer Protocols- The Frame 31 ã Remember that although there are many different Data Link layer protocols that describe Data Link layer frames, each frame...

64
507
0

Tài liệu WHAT IS PROPERTY? AN INQUIRY INTO THE PRINCIPLE OF RIGHT AND OF GOVERNMENT pptx

Ngày tải lên : 15/02/2014, 09:20

... as to what is best for them, applaud indiscriminately the most opposite ideas, provided that in them they get a taste of flattery: to them the laws of thought are like the confines of the possible; ... that the the breaks, the variations, in short, the EVOLUTION of his mind. The history of his mind is in his letters; there it must be sought. "Proudhon, whoever addresses him, is always ... finish. Each line is accurate: nothing is left to chance; the punctuation, very correct and a little emphatic and decided, indicates with precision and delicate distinction all the links in...

416
517
0

Tài liệu ELECTRICAL /DATA CABLING WORKS IN THE BRANCH OF BANK OF INDIA, BHULLAR , LUDHIANA. doc

Ngày tải lên : 16/02/2014, 11:20

... 22. The contractor shall examine all drawings before quoting & commencing of actual work & report to the Architect / Bank any discrepancy or omission & shortcomings in the drawings. ... room is required. As the web-server is being provided in Manager’s Cabin therefore the router may be provided at suitable location in Manager’s cabin in consultation with Zonal IT Dep’t and data ... Specifications for enclosed distribution -IS 2675. d) Installation and maintenance for switchgear IS- 3072. e) HRC Cartridge fuse links 650 volts IS- 2208. f) Specifications for PVC insulated cables for...

16
623
0

Tài liệu Báo cáo Y học: The binding of lamin B receptor to chromatin is regulated by phosphorylation in the RS region ppt

Ngày tải lên : 22/02/2014, 04:20

... chromatin. The b inding of GST-fusion proteins incorporating t he N-terminal and arginine-serine repeat-containing regions to chromatin was suppressed by mild trypsinization of the chromatin and ... the binding of LBR to chromatin. It was shown that the binding of LBR fragments to chromatin was stimulated by phosphorylation in the arginine-serine repeat- containing region by a protein kinase(s) ... that the cell cycle-dependent binding of LBR to chromatin is regulated by phosphorylation in the arginine-serine repeat-containing region b y multiple kinases. Keywords: chromatin binding; lamin...

11
563
0

WHAT IS PROPERTY? AN INQUIRY INTO THE PRINCIPLE OF RIGHT AND OF GOVERNMENTBy P. J. pptx

Ngày tải lên : 22/03/2014, 20:20

... o'clock in the morning, in the arms of his wife, his sister -in- law, and the friend who writes these lines The publication of his correspondence, to which his daughter Catherine is faithfully ... recalling, on the one hand, the treatment which he had received from the dismissed minister; and, on the other, the impartial conduct displayed towards him in 1840 by M. Vivien, the new minister. ... been pitiless in my criticism of the economists: for them I confess that, in general, I have no liking. The arrogance and the emptiness of their writings, their impertinent pride and their unwarranted...

416
424
0

the earth after us what legacy will humans leave in the rocks jan 2009

Ngày tải lên : 11/06/2014, 09:43

... Portugal Singapore South Korea Switzerland  ailand Turkey Ukraine Vietnam Oxford is a registered trade mark of Oxford University Press in the UK and in certain other countries Published in the United ... living in caves, shaping rocks as primitive tools and wearing the skins of other mammals that they have killed and eaten. In the oceans, we might envisage seal-like rodents and, hunting them, ... reacted to the forces that shape them.  ere are often breaks in the ﬁ lm, true, but the basis on which the forensic examination of rock strata rests is one of continuity, not stasis. On Earth,...

268
182
0

báo cáo sinh học:" What can health care professionals in the United Kingdom learn from Malawi?" pdf

Ngày tải lên : 18/06/2014, 17:20

... Mothers are assisted by their "guardians", usually a grandmother. They take it in turn to nurse the baby. While one is lying with the baby in the "kangaroo" position, the other ... involvement. Protocols A feature of clinic work in Malawi is the set protocols for managing likely presenting problems. These are reminis- cent of guidelines and flowcharts displayed in accident and emergency ... smoking cessation advice ses- sion that included singing and dancing with their doctor or nurse. While not advocating that the NHS provide dancing sessions en masse, the message is clear. Engaging with...

5
378
0

Báo cáo sinh học: " Recombinant Tula hantavirus shows reduced fitness but is able to survive in the presence of a parental virus: analysis of consecutive passages in a cell culture" pot

Ngày tải lên : 18/06/2014, 22:20

... non- pairing C/A bases in the minus-sense RNA. Interestingly, in Puumala hantavirus, a hairpin-like structure formed by a highly conserved inverted repeat in the 3'-noncoding region of the S ... be involved in recombination events, leading, however, to the deletion of the hairpin-forming sequences (A. Plyusnin, unpublished observations). The role of RNA folding in hantavirus recombination ... in a hypothetical in vivo situation, from one rodent to another. If transmission is performed in a sampling- like fashion – and this seems to be the case for hantaviruses [13] – the recombinant...

5
483
0

báo cáo hóa học:" Recombinant Tula hantavirus shows reduced fitness but is able to survive in the presence of a parental virus: analysis of consecutive passages in a cell culture" ppt

Ngày tải lên : 20/06/2014, 04:20

... comprising the L segment encoding the RNA-polymerase, the M segment encoding two exter- nal glycoproteins, and the S segment encoding the nucle- ocapsid (N) protein [12]. Hantaviruses are maintained ... non- pairing C/A bases in the minus-sense RNA. Interestingly, in Puumala hantavirus, a hairpin-like structure formed by a highly conserved inverted repeat in the 3'-noncoding region of the S ... be involved in recombination events, leading, however, to the deletion of the hairpin-forming sequences (A. Plyusnin, unpublished observations). The role of RNA folding in hantavirus recombination...

5
430
0

báo cáo hóa học:" An HIV epidemic is ready to emerge in the Philippines Review" ppt

Ngày tải lên : 20/06/2014, 08:20

... activity. The fact that the aver- age age is decreasing is a strong indicator that HIV inci- dence could increase substantially in the future in the Philippines. This trend is also in contrast ... epidemic. It is important to understand the reasons for the disparate nature of HIV in this country in order to ascertain whether lessons can be learnt for effective control in other settings and ... HIV epidemic does not emerge in the Philip- pines. The first recorded case of HIV infection in the Philippines was in 1984 [2-10]. Since then, the country has maintained an HIV prevalence of less...

8
322
0

Unit 10 - Is there any wine in the bottle? ppt

Ngày tải lên : 12/07/2014, 03:20

... The fridge is empty. Is there any cheese in the fridge. Yes, there is. Is there any butter in the fridge? Unit 10 - Is there any wine in the bottle? Có chút rượu ... There's some rice in the jar. There's some milk in the bottle. There's some sugar in the jar. There's some oil in the bottle. There's some water in the jug. There's ... some wine in the bottle. No, there isn't. Are there any eggs in the fridge? Yes, there are. Are there any tomatoes in the fridge? No, there aren't. there? How many are there?...