Presentation is loading. Please wait.

Presentation is loading. Please wait.

Lecturer : Ms.Trần Thị Ngọc Hoa Chapter 5 IP Routing.

Published byTracy Skinner Modified over 8 years ago

Similar presentations

Presentation on theme: "Lecturer : Ms.Trần Thị Ngọc Hoa Chapter 5 IP Routing."— Presentation transcript:

1 Lecturer : Ms.Trần Thị Ngọc Hoa Chapter 5 IP Routing

2 Lecturer : Ms.Trần Thị Ngọc Hoa Objectives  Switching Revision  Routing Process  Static Routing  Default Route  Interior Routing Protocol  Lab Demo

3 Lecturer : Ms.Trần Thị Ngọc Hoa 0200.1111.AAAA0200.1111.DDDD 0200.1111.BBBB 0200.1111.CCCC E0E3 E2E1 Layer 2 Switching Operation  Address learning  Forward/filter decision MAC Address Table E0 0200.1111.AAAA

4 Lecturer : Ms.Trần Thị Ngọc Hoa Layer 2 Switching Operation (cont) 0200.1111.AAAA0200.1111.DDDD 0200.1111.BBBB 0200.1111.CCCC MAC Address Table E0 0200.1111.AAAA E3 0200.1111.DDDD E0 E3 E2 E1

5 Lecturer : Ms.Trần Thị Ngọc Hoa 0200.1111.AAAA0200.1111.DDDD 0200.1111.BBBB 0200.1111.CCCC MAC Address Table E0 0200.1111.AAAA E3 0200.1111.DDDD E2 0200.1111.CCCC E0 E3 E2E1 Layer 2 Switching Operation (cont)

6 Lecturer : Ms.Trần Thị Ngọc Hoa Layer 2 Switching Operation (cont) 0200.1111.AAAA0200.1111.DDDD 0200.1111.BBBB 0200.1111.CCCC MAC Address Table E0 0200.1111.AAAA E3 0200.1111.DDDD E2 0200.1111.CCCC E1 0200.1111.BBBB E0E3 E2 E1 Broadcast storm

7 Lecturer : Ms.Trần Thị Ngọc Hoa Routing Process Overview Receiving frame Check the Destination MAC address Detemine the Destination MAC address of next hop Encapsulate the frame & forward to the next hop Discard the frame’s header and trailer Error ? Discard the frame Router’s MAC ? Find the route Report the error or send to the default route Y Discard the frame Y N N N Y

8 Lecturer : Ms.Trần Thị Ngọc Hoa FA0/0 FA0/1 IP Routing Process Example 172.16.1.0/24 172.16.2.0/24172.16.3.0/24. 251. 252.251.1.1.2.2. 252.3.3 R_1 R_2

9 Lecturer : Ms.Trần Thị Ngọc Hoa R1 R2 R3 s0 s1 Static Routing 172.16.1.0/24 172.16.2.0/24 172.16.3.0/24 10.0.1.0/24 10.0.2.0/24 10.0.3.0/24  There are three methods by which Routers use to add routes to their routing table. Connected routes Static routes Dynamic routes  Router(config)#ip route network [mask] {next-hop address | outgoing interface} [distance] [permanent] R1(config)# ip route 172.16.2.0 255.255.255.0 s0 R1(config)# ip route 172.16.2.0 255.255.255.0 10.0.1.2.2.1

10 Lecturer : Ms.Trần Thị Ngọc Hoa Static Routing (cont)  Advantages 1. No overhead on Router’s processor 2. No bandwidth for transfering routing traffics between Routers 3. More security

11 Lecturer : Ms.Trần Thị Ngọc Hoa Static Routing (cont)  Disadvantages For administrator :  Must understand clearly the internetwork  Must master the cabling diagram among routers  No flexibility  No feasibility in large or medium internetworks

12 Lecturer : Ms.Trần Thị Ngọc Hoa Static Routing (cont)  Default Route  Special route that matches all packet destinations.

13 Lecturer : Ms.Trần Thị Ngọc Hoa Static Routing (cont)  Commands : ip route 0.0.0.0 0.0.0.0 nexthop ip default-network classful_network 168.13.1.0/24 168.13.2.0/24 168.13.3.0/24 168.13.100.0/24 168.13.200.1 10.1.1.1.1.101

14 Lecturer : Ms.Trần Thị Ngọc Hoa

15

16 Static Routes (cont)  Classless Routing and Classful Routing : two options for how a router uses a default route  Classless Routing : a router uses default routes for any packet that does not match the other routes.  Classful Routing : places one restriction when a router can use its default route  Remember these commands : ip classless and no ip classless

17 Lecturer : Ms.Trần Thị Ngọc Hoa

18 Dynamic Routing  General Routing Protocol Function 1. Router learn routing information from other neighboring routers 2. Advertise its routing information to the other neighboring routers 3. If more than one route exists to reach one network, pick the best one based on a metric 4. Support convergence if the network topology changes

19 Lecturer : Ms.Trần Thị Ngọc Hoa Dynamic Routing  Two catgories of routing protocols IGP – Interior Gateway Protocol EGP – Exterior Gateway Protocol  IGP : used for inside a single Autonomous System – AS.  EGP: used for between different AS.  AS : internetwork under the administrative control of a single organization.  ASN : managed by ICANN - Internet Corporation for Assigned Network Number

20 Lecturer : Ms.Trần Thị Ngọc Hoa Interior Routing Protocols  Three branches : Distance Vector :  RIP – Routing Information Protocol  IGRP – Interior Gateway Routing Protocol Link-State :  OSPF – Open Shortest Path Fist  IS-IS – Intermediate System to Intermediate System Balanced hybrid  EIGRP – Enhanced IGRP

21 Lecturer : Ms.Trần Thị Ngọc Hoa Administrative Distance Route TypeAD Connected0 Static1 BGP(external routes)20 EIGRP (internal routes)90 IGRP100 OSPF110 IS-IS115 RIP120 EIGRP (external routes)170 BGP(internal routes)200

22 Lecturer : Ms.Trần Thị Ngọc Hoa Distance Vector Routing Protocol  Operation in a stable network  Loop Prevention S0/0 172.30.1.1 S0/1 172.30.1.2 Fa0/0 172.30.21.2/24 Fa0/1 172.30.22.2/24 172.30.11.1/24 Fa0/1 R_1 R_2

23 Lecturer : Ms.Trần Thị Ngọc Hoa Operation in A Stable Network Source Subnet Out.Int Nexthop Metric Conn.172.30.1.0/24S0/0 N/A 0 Conn. 172.30.11.0/24 Fa0/0 N/A 0 RIP 172.30.21.0/24S0/0172.30.1.21 RIP 172.30.22.0/24S0/0172.30.1.21 Source Subnet Out.Int Nexthop Metric Conn.172.30.21.0/24Fa0/0 N/A 0 Conn. 172.30.22.0/24 Fa0/1 N/A 0 Conn. 172.30.1.0/24S0/1N/A0 RIP 172.30.11.0/24S0/1172.30.1.11 172.30.1.0, metric 1 RIP Update 172.30.21.0, metric 1 172.30.22.0, metric 1 RIP Update 172.30.1.0, metric 1 RIP Update 172.30.21.0, metric 1 172.30.22.0, metric 1 RIP Update S0/0 172.30.1.1 S0/1 172.30.1.2 Fa0/0 172.30.21.2/24 Fa0/1 172.30.22.2/24 172.30.11.1/24 Fa0/1 R_1 R_2

24 Lecturer : Ms.Trần Thị Ngọc Hoa S0/0 172.30.1.1 S0/1 172.30.1.2 Fa0/0 172.30.21.2/24 Fa0/1 172.30.22.2/24 172.30.11.1/24 Fa0/1 R_1 R_2 Routing Problem Source Subnet Out.Int Nexthop Metric Conn.172.30.1.0/24S0/0 N/A 0 Conn. 172.30.11.0/24 Fa0/0 N/A 0 RIP 172.30.21.0/24S0/0172.30.1.21 RIP 172.30.22.0/24S0/0172.30.1.21 Source Subnet Out.Int Nexthop Metric Conn.172.30.21.0/24Fa0/0 N/A 0 Conn. 172.30.22.0/24 Fa0/1 N/A 0 Conn. 172.30.1.0/24S0/1N/A0 RIP 172.30.11.0/24S0/1172.30.1.11

25 Lecturer : Ms.Trần Thị Ngọc Hoa Loop Prevention  Route Poisoning  Split Horizon with Triggered Updates  Holddown process

26 Lecturer : Ms.Trần Thị Ngọc Hoa S0/0 172.30.1.1 S0/1 172.30.1.2 Fa0/0 172.30.21.2/24 Fa0/1 172.30.22.2/24 172.30.11.1/24 Fa0/1 R_1 R_2 Route Poisoning Source Subnet Out.Int Nexthop Metric Conn.172.30.1.0/24S0/0 N/A 0 Conn. 172.30.11.0/24 Fa0/0 N/A 0 RIP 172.30.21.0/24S0/0172.30.1.21 RIP 172.30.22.0/24S0/0172.30.1.21 Source Subnet Out.Int Nexthop Metric Conn.172.30.21.0/24Fa0/0 N/A 0 Conn. 172.30.22.0/24 Fa0/1 N/A 0 Conn. 172.30.1.0/24S0/1N/A0 RIP 172.30.11.0/24S0/1172.30.1.11 172.30.21.0, metric 1 172.30.22.0, metric 16 RIP Update

27 Lecturer : Ms.Trần Thị Ngọc Hoa S0/0 172.30.1.1 S0/1 172.30.1.2 Fa0/0 172.30.21.2/24 Fa0/1 172.30.22.2/24 172.30.11.1/24 Fa0/1 R_1 R_2 Split Horizon- Triggered Update Source Subnet Out.Int Nexthop Metric Conn.172.30.1.0/24S0/0 N/A 0 Conn. 172.30.11.0/24 Fa0/0 N/A 0 RIP 172.30.21.0/24S0/0172.30.1.21 RIP 172.30.22.0/24S0/0172.30.1.21 Source Subnet Out.Int Nexthop Metric Conn.172.30.21.0/24Fa0/0 N/A 0 Conn. 172.30.22.0/24 Fa0/1 N/A 0 Conn. 172.30.1.0/24S0/1N/A0 RIP 172.30.11.0/24S0/1172.30.1.11 172.30.21.0, metric 1 172.30.22.0, metric 16 RIP Update 172.30.1.0, metric 1 172.30.21.0, metric 2 172.30.22.0, metric 2 RIP Update

28 Lecturer : Ms.Trần Thị Ngọc Hoa S0/0 172.30.1.1 S0/1 172.30.1.2 Fa0/0 172.30.21.2/24 Fa0/1 172.30.22.2/24 172.30.11.1/24 Fa0/1 R_1 R_2 Holddown Process R_4 R_3

29 Lecturer : Ms.Trần Thị Ngọc Hoa Timers TimerRIPIGRP Route Update30s90s Route Invalid180s270s Holddown180s280s Route Flush240s630s

30 Lecturer : Ms.Trần Thị Ngọc Hoa Lab Demo HaNoi HCM HN_1 HCM_1 HCM_2 HN_2 Internet XYZ Network RIP 1 2 253 254 253 254 1 2 1 1 2 2 2 1 14.1.1.0/24 15.1.1.0/24 11.1.1.0/24 13.1.1.0/24 12.1.1.0/24

Download ppt "Lecturer : Ms.Trần Thị Ngọc Hoa Chapter 5 IP Routing."

Similar presentations

IP Routing.

IP Routing.
RIP V2 CCNP S1(5), Chapter 4.

RIP V2 CCNP S1(5), Chapter 4.
Chapter 22 Network Layer: Delivery, Forwarding, and Routing.

Chapter 22 Network Layer: Delivery, Forwarding, and Routing.
Copyright 2002 Year 2 - Chapter 5/Cisco 3 - Module 5 Routing Protocols: IGRP By Carl Marandola.

Copyright 2002 Year 2 - Chapter 5/Cisco 3 - Module 5 Routing Protocols: IGRP By Carl Marandola.
CCNA Guide to Cisco Networking Fundamentals Fourth Edition

CCNA Guide to Cisco Networking Fundamentals Fourth Edition
© 2007 Cisco Systems, Inc. All rights reserved.Cisco Public 1 Version 4.0 Introduction to Dynamic Routing Protocol Routing Protocols and Concepts – Chapter.

© 2007 Cisco Systems, Inc. All rights reserved.Cisco Public 1 Version 4.0 Introduction to Dynamic Routing Protocol Routing Protocols and Concepts – Chapter.
© 2007 Cisco Systems, Inc. All rights reserved.Cisco Public 1 Version 4.1 Routing Working at a Small-to-Medium Business or ISP – Chapter 6.

© 2007 Cisco Systems, Inc. All rights reserved.Cisco Public 1 Version 4.1 Routing Working at a Small-to-Medium Business or ISP – Chapter 6.
© 2006 Cisco Systems, Inc. All rights reserved. ICND v2.3—3-1 Determining IP Routes Introducing Routing.

© 2006 Cisco Systems, Inc. All rights reserved. ICND v2.3—3-1 Determining IP Routes Introducing Routing.
Chapter 5 IP Routing Routing Sending packets through network from one device to another What must routers know? – Destination address – Neighboring routers.

Chapter 5 IP Routing Routing Sending packets through network from one device to another What must routers know? – Destination address – Neighboring routers.
SYPCNSA Department2007 Summer Youth Program: Internal Protocols: RIP & IGRP.

SYPCNSA Department2007 Summer Youth Program: Internal Protocols: RIP & IGRP.
CCNA 2 v3.1 Module 6.

CCNA 2 v3.1 Module 6.
Routing and Routing Protocols

Routing and Routing Protocols
1 © 2003, Cisco Systems, Inc. All rights reserved. CCNA 1 v3.0 Module 10 Routing Fundamentals and Subnets.

1 © 2003, Cisco Systems, Inc. All rights reserved. CCNA 1 v3.0 Module 10 Routing Fundamentals and Subnets.
Lecture Week 3 Introduction to Dynamic Routing Protocol Routing Protocols and Concepts.

Lecture Week 3 Introduction to Dynamic Routing Protocol Routing Protocols and Concepts.
1 Semester 2 Module 6 Routing and Routing Protocols YuDa college of business James Chen

1 Semester 2 Module 6 Routing and Routing Protocols YuDa college of business James Chen
Chapter 22 Network Layer: Delivery, Forwarding, and Routing.

Chapter 22 Network Layer: Delivery, Forwarding, and Routing.
Switching and Routing Technique

Switching and Routing Technique
Each computer and router interface maintains an ARP table for Layer 2 communication The ARP table is only effective for the broadcast domain (or LAN)

Each computer and router interface maintains an ARP table for Layer 2 communication The ARP table is only effective for the broadcast domain (or LAN)
Chabot College Chapter 5 – Routing Protocols: IGRP Review Questions Semester IIIELEC 99.09 Semester III ELEC 99.09.

Chabot College Chapter 5 – Routing Protocols: IGRP Review Questions Semester IIIELEC Semester III ELEC
Dynamic Routing Protocols  Function(s) of Dynamic Routing Protocols: – Dynamically share information between routers (Discover remote networks). – Automatically.

Dynamic Routing Protocols  Function(s) of Dynamic Routing Protocols: – Dynamically share information between routers (Discover remote networks). – Automatically.

Similar presentations

Ads by Google