... Cisco Public ITE 1Chapter 6 12 Cisco Thai Nguyen Networking Academy WAN Physical Layer Standards TheWAN physical layer also describes the interface between the DTE and the DCE. –EIA/TIA-232 ... rights reserved. Cisco Public ITE 1Chapter 6 43 Cisco Thai Nguyen Networking Academy Choosing a WAN Link Connection What is the purpose of the WAN? –Do you want to connect local branches, ... modulates the binary data into an analog signal at the source and demodulates the analog signal to binary data at the destination. The physical characteristics of the local loop to the PSTN...
... 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 ... Systems, Inc. All rights reserved. Cisco Public ITE 1Chapter 6 11 What is a Cable System? John Walson the founder of the cable television. –He was the first cable operator to use microwave to...
... –Data is encapsulated by the sending router. The frame is sent on a physical medium to the WAN. –There are various ways to traverse the WAN, The receiving router uses the same communications ... Public ITE I Chapter 6 1 Point-to-Point Protocol Accessing theWAN – Chapter 2 Cisco Thai Nguyen Networking Academy â 2006 Cisco Systems, Inc. All rights reserved. Cisco Public ITE 1Chapter ... 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...
... Frame 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 ... DLCI. Use the show frame-relay map command to display the current map entries and information about the connections. The output shows the following information: 10 .14 0 .1. 1 is the IP address ... Public ITE 1Chapter 6 11 Cost Benefits of Multiple VCs More savings arise as the capacity of the access line is based on the average bandwidth requirement of the VCs, rather than on the maximum...
... reserved. Cisco Public ITE 1Chapter 6 28 The Network Security Wheel The security policy is the four steps of Security Wheel. Step 1: Secure –Secure the network by applying the security policy ... the entire audience in a large organization. Cisco Thai Nguyen Networking Academy â 2006 Cisco Systems, Inc. All rights reserved. Cisco Public ITE 1Chapter 6 11 Threats to Networks There ... of these groups differently. –Each group should only be shown the portion of the policy appropriate to their work and level of access to the network. –One document is not likely to meet the...
... Cisco Public ITE 1Chapter 6 18 DHCP Configuration with SDM The Add DHCP Pool window contains the options you need to configure the DHCP IP address pool. The IP addresses that the DHCP server ... using broadcast messages. In the figure, PC1 is attempting to acquire an IP address from the DHCP server located at 19 2 .16 8 .11 .5. In this scenario router R1 is not configured as a DHCP ... 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 services...
... with the hubs of the stars linked to form the region. ãinterconnect the regions to form the core of the WAN. – Regions could be geographic, connecting between three and 10 areas, and the hub ... I Chapter 6 1 Network Troubleshooting Accessing theWAN – Chapter 8 Cisco Thai Nguyen Networking Academy â 2006 Cisco Systems, Inc. All rights reserved. Cisco Public ITE 1Chapter 6 13 ... ITE 1Chapter 6 32 Common WAN Implementation Issues The figure summarizes the common WAN implement issues and the questions you need to answer before you can effectively implement a WAN. ...
... overwhelmed by the bitter flow of that sinister philosophy which is the religion of the captive. “So much, then, for the flowers, the air, the daylight, and the stars,” tranquilly continued the young ... returned to the shutter, and saw my tutor and Dame Perronnette go out together. I was alone in the house. They had hardly closed the gate before I sprang from the window and ran to the well. Then, ... to learn whether Baisemeaux and the turnkey had retired; but as soon as he was assured by the dying sound of their footsteps that they had left the tower, he put the lantern on the table and...
... Tadminster might open it the first day, and Mrs. Crosbie the second. Then there's the Duchess about the school fete." There was the murmur of a man's voice, and then Mrs. Inglethorp's ... voice to a The Mysterious Affair at Styles AGATHA CHRISTIE CHAPTER 1 I go to Styles The intense interest aroused in the public by what was known at the time as " ;The Styles Case" ... Howard." He took the path through the plantation, and we walked down to the village through the woods which bordered one side of the estate. As we passed through one of the gates on our way...