Accessing the WAN – Chapter 2 docx
... Receiver/Transmitter (UART) chip on the motherboard. The UART is the DTE agent of your PC and communicates with the modem or other serial device, which, in accordance with the RS -23 2C standard, has a complementary ... 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 ... = 24 DSOs, –A T1C = 48 DSOs (or 2 T1s), and so on. E1: Outside North America, 32 DS0 units are multiplexed for E1 transmission at 2. 048 Mb/s. Cisco Thai Nguyen Networking Academy © 20 06...
Ngày tải lên: 05/07/2014, 03:20
Accessing the WAN – Chapter 4 docx
... 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. ... provided by the Cisco IPS 42 00 series sensors. This sensor identifies, classifies, and stops malicious traffic on the network. Cisco NAC Appliance The Cisco NAC appliance uses the network...
Ngày tải lên: 05/07/2014, 03:20
Accessing the WAN – Chapter 1 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 ... signal speeds of up to 64 kb/s 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 -44 9/530 - This protocol ... 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 - 42 3. –EIA/TIA-6 12/ 613...
Ngày tải lên: 05/07/2014, 03:20
Accessing the WAN – Chapter 3 potx
... 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 ... 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 ... tell the network how the frame should be routed. The frame uses DLCI 1 02. It leaves the router (R1) using Port 0 and VC 1 02. –At switch A, the frame exits Port 1 using VC 43 2. –This process...
Ngày tải lên: 05/07/2014, 03:20
Accessing the WAN – Chapter 5 pdf
... 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 ... 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 ... 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 –...
Ngày tải lên: 05/07/2014, 03:20
Accessing the WAN – Chapter ppt
... only (for example, 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 ... 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
... fa0 1 72. 16.1.0/ 24 1 72. 16 .2. 0/ 24 1 72. 16.3.0/ 24 1 72. 16 .4. 0/ 24 1 92. 168.1.0/ 24 .1 .1 .2 .1 .1 .1 .2 1 72. 16.10.0/ 24 lo1 1 72. 16 .20 .0/ 24 lo2 1 72. 16.30.0/ 24 lo3 1 72. 16 .40 .0/ 24 lo4 22 The Default Route RouterB(config)#ip ... 1 72. 16 .2. 2 03: 12 :45 : RT: add 1 72. 16.3.0/ 24 via 1 72. 16 .2. 2, static metric [1/0] RouterA(config)# Router B Router CRouter A s0 s0 s0 s1 fa0 fa0 fa0 1 72. 16.1.0/ 24 1 72. 16 .2. 0/ 24 1 72. 16.3.0/ 24 1 72. 16 .4. 0/ 24 1 92. 168.1.0/ 24 .1 .1 ... 1 72. 16 .4. 0/ 24 1 92. 168.1.0/ 24 .1 .1 .2 .1 .1 .1 .2 1 72. 16.10.0/ 24 lo1 1 72. 16 .20 .0/ 24 lo2 1 72. 16.30.0/ 24 lo3 1 72. 16 .40 .0/ 24 lo4 13 Static Routes and Administrative Distance You might have also noticed that the routing...
Ngày tải lên: 18/03/2014, 14:20
Accessing the WAN
... Define the three phases of PPP session establishment © 20 06 Cisco Systems, Inc. All rights reserved. Cisco Public 1 Version 4. 0 Access Control Lists Accessing the WAN – Chapter 5 © 20 06 Cisco ... Describe the key WAN technology concepts. Identify the appropriate WAN technologies to use when matching ECNM best practices with typical enterprise requirements for WAN communications. © 20 06 ... conversation © 20 06 Cisco Systems, Inc. All rights reserved. Cisco Public 7 Describe the Key WAN Technology Concepts Describe WAN functions in terms of the OSI Reference Model © 20 06 Cisco...
Ngày tải lên: 03/04/2014, 13:52
... 2 41 4 41 =− () −− + () =− () −− + ∞ ∞ ∞ ∞ ∞ π β πβ π β , , II rkRT T 2 2 4 () ∞ πβ I BbA A BbA A BBBBBB gg 1 22 1 1 1 12 2 2 2 22 11 11 22 12 21 1 1 = − () − () +− () −−+ − I BbA A BbA A BBBBBB gg 2 11 2 2 2 21 1 1 1 22 11 11 22 ... rRm pp =+− () 22 12 2 / ∆Grfmx* * (,)= 2 3 2 12 πσ L 829 /frame/ch 02 Page 34 Monday, January 31, 20 00 2: 03 PM © 20 00 by CRC Press LLC Physical Chemistry of Aerosol Formation 35 where (2 .43 ) and (2 .44 ) and (2 .45 ) Nucleation ... Petroleum Research fund of the American Chemical Society. Ir MDpT RT AA LM LI LI rkRT Ir MDpT RT AA LM LI L Msf g T Msf g 1 1111 11 1111 22 2 2 22 22 22 221 1 2 41 4 41 =− () −− + () =− () −− + ∞ ∞ ∞ ∞ ∞ π β πβ π β , , II rkRT T 2 2 4 () ∞ πβ I BbA...
Ngày tải lên: 18/06/2014, 19:20
Radionuclide Concentrations in Foor and the Environment - Chapter 2 docx
... m 23 8 U 2 34 Pa 2 34 U 2 .4 × 10 5 y 3.8 d 1.6 × 10 3 y 7.7 × 10 4 y 22 2 Rn 22 6 Ra 21 8 Po 23 0 2 14 Pb 3 m 2 14 Bi 2 14 Po 21 0 Pb 20 m 6 .4 × 10 −5 s 21 0 Bi 22 .3 y 5 d 21 0 Po 138 d 27 m 20 6 Pb DK594X_book.fm ... h 23 5 U 23 1 Pa 22 7 Ac 22 y (99%) 4 s 11 d 19 d 21 9 Rn 22 3 Ra 21 5 Po 22 7 21 1 Pb 8 × 10 4 s 21 1 Bi 20 7 Tl 20 7 Pb 36 m 2. 1 m 4. 8 m 22 3 Fr 22 y (1%) 22 m 3.3 × 10 4 y DK594X_book.fm Page 28 Tuesday, ... updates [5–7]. 1 .4 × 10 10 y 22 8 Ra 5.8 y 6.1 h 22 8 Ac 23 2 22 8 1.9 y 56 s 0.15 s 3.7 d 21 2 Pb 21 6 Po 22 0 Rn 2 24 Ra 11 h 21 2 Bi 21 2 Po 20 8 Tl 61 m ( 64% ) 3.1 m 61 m (36%) 3.1 × 10 −7 s 20 8 Pb DK594X_book.fm...
Ngày tải lên: 18/06/2014, 19:20
Nanotechnology and the Environment - Chapter 2 pptx
... 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 Inuence ... Black 27 2 .4. 5 Carbon Nanotubes 28 2 .4. 6 Fullerenes 29 2. 5 Summary 30 References 31 © 20 09 by Taylor & Francis Group, LLC Nanoscale Materials 27 A variation on the nanoprobe is based on the light-scattering...
Ngày tải lên: 18/06/2014, 22:20
Veterinary Medicines in the Environment - Chapter 2 ppt
... cattle with the antipara- sitic drug ivermectin. Nature 327 :41 8 42 1. © 20 09 by the Society of Environmental Toxicology and Chemistry (SETAC) Uses and Inputs of Veterinary Medicines in the Environment ... avermectins by the US Food and Drug Administration. Vet Parasitol 48 :28 1 2 94. Boxall ABA, Fogg LA, Kay P, Blackwell PA, Pemberton EJ, Croxford A. 20 04. Veteri- nary medicines in the environment. ... Halling-Sørensen 20 00; Boxall et al. 20 04) . Over the past 10 years, the scientic community has become increasingly interested in the impacts of veterinary medicines on the environment, and there have...
Ngày tải lên: 18/06/2014, 22:20
PESTICIDES IN AGRICULTURE AND THE ENVIRONMENT - CHAPTER 2 docx
Ngày tải lên: 11/08/2014, 12:21
Radio Propagation and Remote Sensing of the Environment - Chapter 2 pps
Ngày tải lên: 11/08/2014, 21:21
Tài liệu Chapter 2 - Communicating over the Network CCNA Exploration 4.0 docx
... khoa - Website: www.bkacad.com Chapter 2 - Communicating over the Network CCNA Exploration 4. 0CCNA Exploration 4. 0 End Devices and their Role on the Network • The network devices that people ... Devices and their Role on the Network • Intermediary devices to provide connectivity and to work behind the scenes to ensure that data flows across the network. • These devices connect the individual ... research, the ISO created a network model that helps vendors create networks that are compatible with other networks. • The Open System Interconnection (OSI) reference model released in 19 84 was the...
Ngày tải lên: 12/12/2013, 14:15