1. nh tuyn

2. Ni dung I. Vai tr ca Router I.1 V tr trong m hnh OSI II.2 Vai tr trong mng Internet II. Kin trc ca Router II.1 Phn cng II.2 Phn mm III. nh tuyn III.1 Tng quan III.2 nh tuyn tnh III.3 nh tuyn ng III.3.1 nh tuyn theo vector khong cch (Distance-Vector) III.3.2 nh tuyn theo trng thi lin kt (Link-State) 3. Ti sao khng dng Switch? 4. Gii php ROUTER 5. I.1 V tr trong m hnh OSI 6. II.2 Vai tr trong mng Internet - Kt ni cc mng - Lu tr v cp nht tuyn ng trong bng nh tuyn - Tm ng i tt nht 7. II. Kin trc ca RouterCISCO 1841 8. II.1 Phn cng 9. II.2 Phn mm RoutingSwitchingOSTelecommunicationInternetworking 10. III. nh tuyn 11. III.1 Tng quan 12. III.2 nh tuyn tnh 10.1.2.0/24 10.1.1.0/24connected10.1.2.0/24 connected10.1.5.0/2410.1.2.2connected10.1.3.0/24 connected10.1.3.0/24connected10.1.4.0/24connected10.1.5.0/24connected10.1.3.310.1.5.0/2410.1.4.410.1.4.0/24connected10.1.5.0/24 10.1.1.0/2410.1.2.110.1.1.0/2410.1.3.210.1.1.0/2410.1.4.3 13. III.2 nh tuyn tnh u imNhc imBng thngKh nng m rng hn chD cu hnhCu hnh bng tayBo mtD nhm lnTit kim ti nguyn 14. III.2 nh tuyn tnh Static route 15. III.3 nh tuyn ng 16. III.3a Vai tr ca nh tuyn ng Hc cc tuyn ng Duy tr v cp nht bng nh tuyn Tm ng i tt nht Hi t nhanh 17. III.3b Thnh phn Thut tonC s d liunh dng bn tin 18. III.3c So snh vi nh tuyn tnh 19. III.3d Phn loi 20. III.3e EGP v IGP 21. III.3f Metric Hop count Bandwidth Load Delay Reliability Cost 22. III.3g Administrative Distance192.168.1.0/24 23. III.3.1 Vector - khong cch 24. III.3.1 Vector - khong cch Khong cch = 1 hopVector = Qua R2 25. III.3.1.1 Vector - khong cch Cp nht theo chu k Gi Broadcast Gi ton b bng nh tuyn 26. III.3.1.2 Thut ton Bellman- Ford 27. III.3.1.3 u nhc im 28. III.3.2 Lin kt trng thi 29. III.3.2.2 Lin kt Trng thi Lin ktTrng thi 30. III.3.2.3 Thut ton Dijkstra 31. III.3.2.4 X l nh tuyn Cc mng ni trc tip Thit lp hng xm Xy dng Link-state Packet cho mng ni trc tip (hng xm, bng thng, li kt ni) Gi LSP ti ton mng Mi router s dng ring mt c s d liu 32. III.3.2.5 X l nh tuyn Hello packetLSP packet 33. III.3.2.6 u nhc im 34. III.3.2.7 Routing Lab Dynamic Routing 35. So snh thut ton Dijkstra v bellman 36. Bellman 37. 6B3 1A: B: C: E:315A EC5F D4d(B)=5, d(C)=1 , Q={C,B} d(E)=11, d(D)=6 , Q={D,E,C} d(B)=4, d(D)=6 , Q={B,D,E} d(F)=14, Q={F,B,D} 38. Dijkstra 39. A C Bd(B) = 5, d(C)=1 , Q={A} d(B)=4 , d(D)=6, Q={A,C} d(E) = 10 , Q={A,C,B} 40. Bng so snh DijkstraBellman phc tp thut ton Trng sDngDng, mS ln qut mt nh Thut tonCh mt ln duy nht Tm gi tr nh nhtC th nhiu lnCch hc thng tin nh tuyn ngdngBit ton b s Ph thuc vo nh lin k mngSo snhCcgiaothcnhtu Ccgiaothcnhtuynsl ynvisntln, ngntnh, tinguynln.(OSPF tinguynhnch.(RIP) ) 41. Kh nng m rng ca distance vector Nguyn nhn hn ch kh nng m rng. - Thi gian hi t - Loop - S lng hoop-count ti a - Bng thng 42. Router 1841 ReportSTUDENT: Trnh Vit Thng 20092557Email: thangtrinh.hut@gmail.com 10/20/201342 10/20/2013 43. Content 1. Overview 2. Interfaces of Cisco 1841 Router 3. Cisco 1841 Routers Hardware 4. Cisco 1841 Routers Software10/20/201343 10/20/2013 44. 1. Overview Thit b nh tuyn dch v tch hp ( Integrated Services Routers ISR ) Cisco 1800 Series thit k dnh cho cc doanh nghip va v nh, qun l cc dch v nh tuyn vi yu cu cao. Cisco 1841 router c tch hp module chuyn dng ( Advanced integration modules AIMs ) x l vic bo mt d liu. 10/20/201344 45. 1. Overview Cisco 1841 Router10/20/201345 46. 2. Interfaces of Cisco 1841 Router10/20/201346 47. 2. Interfaces of Cisco 1841 Router Console port cho cc terminal c th truy cp vo router, cu hnh trn router. Thng s truyn: 9600 Baud, 8 data bits, 1 stop bit.10/20/201347 48. 2. Interfaces of Cisco 1841 Router AUX Port Auxiliary port: cu hnh router t xa thng qua modem kt ni.10/20/201348 49. 10/20/201349 50. 3. Cisco 1841 Routers Hardware10/20/201350 51. 3. Cisco 1841 Routers Hardware ROM Read-Only Memory: Cha chui POST: chui kim tra phn cng. Cha on m bootstrap tm IOS Internetwork Operating System, ti IOS vo RAM v khi ng IOS. Cha ROMMON: khi phc li ca router, v d mt password. Cha IOS c bn khi phc IOS image trong flash b xa ROM khng b mt d liu khi tt ngun. 10/20/201351 52. 3. Cisco 1841 Routers Hardware RAM Random Access Memory: B nh c th c-ghi d liu IOS chy trong RAM Lu tr bng nh tuyn, ARP cache, b m lu tr thng tin, hng i. D liu b xa khi mt ngun10/20/201352 53. 3. Cisco 1841 Routers Hardware Flash B nh c ghi c s dng lu IOS image. Vi router lu IOS c bn trong flash. Vi router chy IOS trong flash m khng ti vo RAM. D liu trong Flash khng b mt khi tt ngun10/20/201353 54. NVRAM B nh c-ghi lu file cu hnh startup config. S dng ngun in t pin duy tr d liu khi tt ngun.10/20/201354 55. 3. Cisco 1841 Routers Hardware Thng s memory trn Cisco 1841 Router10/20/201355 56. 3. Cisco 1841 Routers Software Qu trnh khi ng v chy IOS 1. Kim tra phn cng: POST 2. Chy m Bootstrap 3. Tm IOS 4. Ti IOS 5. Tm cu hnh trong NVRAM 6. Ti cu hnh 7. Chy IOS cu hnh. 10/20/201356 57. 3. Cisco 1841 Routers Software Hardware-Bas ed Encryption on Motherboard AIM-Based VPN Acceleration SSL Web VPN AIM-Based SSL VPN NAC Network Admissions Control10/20/201357 58. 3. Cisco 1841 Routers Software IPSec: IP Security Cisco Easy VPN Remote and Server Support Cisco IOS Firewall, Including URL Filtering Real-Time Clock Support Cisco Security Device Manager USB port ( version 1.1 )10/20/201358 59. Router 1841 Report10/20/201359