accessing the wan chapter 2 ppt

... ITE 1 Chapter 6 12 Cisco Thai Nguyen Networking Academy WAN Physical Layer Standards  The WAN physical layer also describes the interface between the DTE and the DCE. –EIA/TIA -23 2 - This ... on a 25 -pin D-connector over short distances. It was formerly known as RS -23 2. The ITU-T V .24 specification is effectively the same. –EIA/TIA-449/530 - This protocol is a faster (up to 2 Mb/s) ... version of EIA/TIA -23 2. It uses a 36-pin D-connector and is capable of longer cable runs. There are several versions. This standard is also known as RS 422 and RS- 423 . –EIA/TIA-6 12/ 613 - This standard...

Ngày tải lên: 05/07/2014, 03:20

... devices. The DTE is the RS -23 2C interface that a computer uses to exchange data with a modem or other serial device. The DCE is the RS -23 2C interface that a modem or other serial device uses ... request requires no authentication, then PPP progresses to the next level. –If an incoming PPP request requires authentication, then it can be authenticated using either the local database ... call. © 20 06 Cisco Systems, Inc. All rights reserved. Cisco Public ITE I Chapter 6 1 Point-to-Point Protocol Accessing the WAN – Chapter 2 Cisco Thai Nguyen Networking Academy © 20 06 Cisco...

Ngày tải lên: 05/07/2014, 03:20

... SDSL and IDSL types).  The data rate that DSL service can provide depends on the distance between the subscriber and the CO. The shorter the distance: the higher the bandwidth available. ... connectivity through the residence. – Since the POTS splitter separates the ADSL and voice signals at the NID, there is usually only one ADSL outlet available in the house. – The user can install ... services. –Figure shows the data channel is established between the CPE modem and the CO DSLAM. The voice channel is established between the telephone and the voice switch at the CO premises. ...

Ngày tải lên: 05/07/2014, 03:20

... 16 2. 3 .2 Critical Physical and Chemical Properties 17 2. 4 Types of Nanomaterials and Applications 23 2. 4.1 Titanium Dioxide 25 2. 4 .2 Zero -Valent I ron 25 2. 4.3 Silver 26 2. 4.4 Carbon Black 27 2. 4.5 ... 13 2. 2 .2 Composition and Structure 13 2. 2.3 Free versus Fixed Nanoparticles 15 2. 3 Properties of Nanoscale Materials 16 2. 3.1 Overview 16 2. 3.1.1 Effect of Increased Surface Area 16 2. 3.1 .2 Inuence ... nanomateri- alstoillustratevariousaspectsofnanotechnology.Unlessotherwisenoted,product informationinthischapteroriginatedfromtheNanotechnologyConsumerProducts InventorymaintainedbytheWoodrowWilsonInstitute[1]. CONTENTS 2. 1 Denitions 12 2 .2 Classication of Nanosca le Mater ials 13 2. 2.1 Origin...

Ngày tải lên: 18/06/2014, 22:20

... Halling-Sørensen 20 00; Boxall et al. 20 04). Over the past 10 years, the scientic community has become increasingly interested in the impacts of veterinary medicines on the environment, and there have ... cattle with the antipara- sitic drug ivermectin. Nature 327 :418– 421 . © 20 09 by the Society of Environmental Toxicology and Chemistry (SETAC) Uses and Inputs of Veterinary Medicines in the Environment ... through direct loss from the coat if the animal enters the water. 2. 3.5 DISPOSAL OF UNWANTED DRUGS Veterinary medicines may be subject to disposal at any stage during their life cycle. It is...

Ngày tải lên: 18/06/2014, 22:20

... unicast so that the other node gets the routing updates.  In the example, R1 uses the frame-relay map command to map the VC to R2.  To verify the Frame Relay mapping, use the show frame-relay ... Relay  Step 1. Setting the IP Address on the Interface –R1 has been assigned 10.1.1.1 /24 , –R2 has been assigned 10.1.1 .2/ 24.  Step 2. Configuring Encapsulation The encapsulation frame-relay ... (DE = 0). –Excess Burst Size (BE) The BE is the term used to describe the bandwidth available above the CBIR up to the access rate of the link. Unlike the CBIR, it is not negotiated. •Frames...

Ngày tải lên: 05/07/2014, 03:20

... port 22 . –Using TeraTerm to connect securely to the R2 router with SSH, –once the connection is initiated, the R2 displays a username prompt, followed by a password prompt. –Assuming that the ... Nguyen Networking Academy © 20 06 Cisco Systems, Inc. All rights reserved. Cisco Public ITE 1 Chapter 6 28 The Network Security Wheel  The security policy is the four steps of Security Wheel. ... authentication-retries integer to enable timeouts and authentication retries. –Set the SSH timeout to 15 seconds and the amount of retries to 2 Cisco Thai Nguyen Networking Academy © 20 06...

Ngày tải lên: 05/07/2014, 03:20

... 0.0.0 .25 5 – R1(config)# access-list 10 permit 1 92. 168 .21 .0 0.0.0 .25 5 – R1(config)# access-list 10 permit 1 92. 168 .22 .0 0.0.0 .25 5 – R1(config)# access-list 10 permit 1 92. 168 .23 .0 0.0.0 .25 5 – ... 1 92. 168 .24 .0 0.0.0 .25 5 – R1(config)# access-list 10 permit 1 92. 168 .25 .0 0.0.0 .25 5 – R1(config)# access-list 10 permit 1 92. 168 .26 .0 0.0.0 .25 5 – R1(config)# access-list 10 permit 1 92. 168 .27 .0 ... Standard ACL: In the figure, the administrator wants to prevent traffic originating in the 1 92. 168.10.0 /24 network from getting to the 1 92. 168.30.0 /24 network. –An standard ACL on the outbound...

Ngày tải lên: 05/07/2014, 03:20

... on that interface, use the ipv6 address ipv6-prefix/prefix-length eui-64 command in interface configuration mode. RouterX(config-if)#ipv6 address 20 01:DB8 :22 22: 727 2::/64 eui-64 ipv6 address ... for the clients. The problem is that the network clients typically are not on the same subnet as those servers. Therefore, the clients must locate the servers to receive services and often these ... and the Asia-Pacific region. These areas are exhausting their allotted IPv4 addresses, which makes IPv6 all the more attractive and necessary. Japan officially started the move in 20 00 when the...

Ngày tải lên: 05/07/2014, 03:20

... with the hubs of the stars linked to form the region. •interconnect the regions to form the core of the WAN. – Regions could be geographic, connecting between three and 10 areas, and the hub ... Academy © 20 06 Cisco Systems, Inc. All rights reserved. Cisco Public ITE 1 Chapter 6 32 Common WAN Implementation Issues  The figure summarizes the common WAN implement issues and the questions ... failure. – At one extreme is the theorist, or rocket scientist, approach. • The rocket scientist analyzes and reanalyzes the situation until the exact cause at the root of the problem has been identified....

Ngày tải lên: 05/07/2014, 03:20

... and if they cared for their lessons, and if any of them had a papa at all like her own. She had had a long talk with Emily about her papa that morning. THE LITTLE PRINCESS Chapter 2 2. A ... that dolls could do things, they would make them work. So, perhaps, they have promised each other to keep it a secret. If you stay in the room, Emily will just sit there and stare; but if you ... "le pere" meant " ;the father," and "la mere" meant " ;the mother." Miss Minchin glanced toward her scrutinizingly. "You look rather cross, Sara," she...

Ngày tải lên: 14/12/2013, 21:15

... bushes, and Tom made everybody swear to keep the secret, and then showed them a hole in the hill, right in the thickest part of the bushes. Then we lit the candles, and crawled in on our hands ... lonesome. As soon as Tom was back we cut along the path, around the garden fence, and by and by fetched up on the steep top of the hill the other side of the house. Tom said he slipped Jim's ... wanted to begin next Sunday; but all the boys said it would be wicked to do it on Sunday, and that settled the thing. They agreed to get together and fix a day as soon as they could, and then...

Ngày tải lên: 15/12/2013, 09:15

... This program only prints to the monitor. We want the program run to be saved in a file. The following program shows the necessary lines required to do it. Program 2B _2. /******************************************************** ... remainder % 2 calculate penny rolls penny_rolls = remainder * 2 After doing all the above, go to the computer lab, launch the Visual C++ or whatever compiler you like. Many of you write the entire ... copy the yourfilename.cpp to your floppy disk before logging out of the computer. Once you logout all your work will be erased. You can copy the file by either dragging the file from the C:...

Ngày tải lên: 20/02/2014, 08:20

... the last of the fruit when a very loud voicetore me away from the pleasures of my dessert. With one spring Ibounded out of the dining-room into the study. JOURNEY TO THE CENTER OF THE EARTH ... use in Iceland in former ages. They wereinvented, it is said, by Odin himself. Look there, and wonder,impious young man, and admire these letters, the invention of theScandinavian god!" ... renewed enthusiasm,"this work is the Heims Kringla of Snorre Turlleson, the most famousIcelandic author of the twelfth century! It is the chronicle of theNorwegian princes who ruled in Iceland."...

Ngày tải lên: 01/07/2014, 14:20

... more than the estimate.” “Then there has been a falling off in the pools of Pierrefonds?” “No, my friend; they have been fished, and there is enough left to stock all the pools in the neighborhood.” ... D’Artagnan stopped at the threshold, and looked at the pensive Porthos; and then, as the sight of the innumerable garments strewing the floor caused mighty sighs to heave from the bosom of that ... ALEXANDRE DUMAS CHAPTER 2 How Mouston Had Become Fatter Without Giving Porthos Notice Thereof, and of the Troubles Which Consequently Befell That Worthy Gentleman After the departure of...

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