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A) For the Figure besides, if the local_ preference for Router RTC is set to 150 and for Router RTD set to 200, what would be the best path to reach network 170.10.0.0 from AS 256. Why? B) For the Figure below, determine the best path from RouterA to Network 40.40.40.40 if RouterA receives updates from RouterB, RouterC, RouterD and RouterE, for the following cases (Justify your answers): A. If the default configuration used. B. If the (bgp always-compare-med) command is configured on RouterA. Set local pref 150 1.1.12 LLL AS 20 AS 100 RTC C) If BGP is used. Which path is the best? Why? 1) AS Path: (10, 20, 35, 50); MED=20; RouterID=1.1.1.1 2) AS Path: (13, 22, 40, 51); MED=10; RouterID=2.2.2.2 3) AS Path: (11, 21, 30, 50); MED-20; RouterID=3.3.3.3 4) AS Path: (15, 25, 35, 55); MED=10; RouterID=4.4.4.4 local pref 150 Routers Metri 40 RTA 128.213.11.1 IBOP 170.10.04 AS 256 Set local pref 200 40.40.40.40 128.213.11.2 AS 10 ouder Metric 30 Metric 20 3334 AS 40 RTD local pref-200 Reuter RTB AS 300 3333 Metri 10 AS 34 AS 30

A) For the Figure besides, if the local_ preference for Router RTC is set to 150 and for Router RTD set to 200, what would be the best path to reach network 170.10.0.0 from AS 256. Why? B) For the Figure below, determine the best path from RouterA to Network 40.40.40.40 if RouterA receives updates from RouterB, RouterC, RouterD and RouterE, for the following cases (Justify your answers): A. If the default configuration used. B. If the (bgp always-compare-med) command is configured on RouterA. Set local pref 150 1.1.12 LLL AS 20 AS 100 RTC C) If BGP is used. Which path is the best? Why? 1) AS Path: (10, 20, 35, 50); MED=20; RouterID=1.1.1.1 2) AS Path: (13, 22, 40, 51); MED=10; RouterID=2.2.2.2 3) AS Path: (11, 21, 30, 50); MED-20; RouterID=3.3.3.3 4) AS Path: (15, 25, 35, 55); MED=10; RouterID=4.4.4.4 local pref 150 Routers Metri 40 RTA 128.213.11.1 IBOP 170.10.04 AS 256 Set local pref 200 40.40.40.40 128.213.11.2 AS 10 ouder Metric 30 Metric 20 3334 AS 40 RTD local pref-200 Reuter RTB AS 300 3333 Metri 10 AS 34 AS 30

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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A) For the Figure besides, if the local_ preference for Router RTC is set to 150 and for Router RTD set to 200, what would be the best path to reach network 170.10.0.0 from AS 256. Why? B) For the Figure below, determine the best path from RouterA to Network 40.40.40.40 if RouterA receives updates from RouterB, RouterC, RouterD and RouterE, for the following cases (Justify your answers): A. If the default configuration used. B. If the (bgp always-compare-med) command is configured on RouterA. Set local pref 150 1.1.12 Routers LEXI AS 20 AS 100 RTC C) If BGP is used. Which path is the best? Why? 1) AS Path: (10, 20, 35, 50); MED=20; RouterID=1.1.1.1 2) AS Path: (13, 22, 40, 51); MED=10; RouterID=2.2.2.2 3) AS Path: (11, 21, 30, 50); MED=20; RouterID=3.3.3.3 4) AS Path: (15, 25, 35, 55); MED=10; RouterID=4.4.4.4 local pref-150 RTA 128.213.11.1 Metri 40 BOP 170.10.04 AS 256 Set local pref 200 40.40.40.40 128.213.11.2 AS 10 ouder Metric 30 Metric 20 3334 AS 40 RTD local pref-200 Router RTB AS 300 3333 Metri 10 AS 34 AS 30
Transcribed Image Text:A) For the Figure besides, if the local_ preference for Router RTC is set to 150 and for Router RTD set to 200, what would be the best path to reach network 170.10.0.0 from AS 256. Why? B) For the Figure below, determine the best path from RouterA to Network 40.40.40.40 if RouterA receives updates from RouterB, RouterC, RouterD and RouterE, for the following cases (Justify your answers): A. If the default configuration used. B. If the (bgp always-compare-med) command is configured on RouterA. Set local pref 150 1.1.12 Routers LEXI AS 20 AS 100 RTC C) If BGP is used. Which path is the best? Why? 1) AS Path: (10, 20, 35, 50); MED=20; RouterID=1.1.1.1 2) AS Path: (13, 22, 40, 51); MED=10; RouterID=2.2.2.2 3) AS Path: (11, 21, 30, 50); MED=20; RouterID=3.3.3.3 4) AS Path: (15, 25, 35, 55); MED=10; RouterID=4.4.4.4 local pref-150 RTA 128.213.11.1 Metri 40 BOP 170.10.04 AS 256 Set local pref 200 40.40.40.40 128.213.11.2 AS 10 ouder Metric 30 Metric 20 3334 AS 40 RTD local pref-200 Router RTB AS 300 3333 Metri 10 AS 34 AS 30
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