From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani ( ) Copyright © 2015 Cisco Systems,

Présentation au sujet: "From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani ( ) Copyright © 2015 Cisco Systems,"— Transcription de la présentation:

1 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-1 BGP Is Used Between Autonomous Systems

2 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-2 BGP Uses Path Vector Routing

3 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-3 BGP Supports the Internet's Hop-by-Hop Routing Paradigm

4 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-4 BGP Is Carried Inside TCP Segments, Which Are Inside IP Packets

5 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-5 A Router Running BGP Keeps a BGP Table, Separate from the IP Routing Table

6 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-6 Routers That Have Formed a BGP Connection Are BGP Neighbors or Peers

7 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-7 eBGP Neighbors Belong to Different Autonomous Systems

8 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-8 iBGP Neighbors Are in the Same Autonomous System

9 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-9 BGP in a Transit Autonomous System

10 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-10 Partial-Mesh Versus Full-Mesh iBGP

11 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-11 BGP Network with iBGP and eBGP Neighbor Relationships

12 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-12 Network for Basic BGP Configuration Example

13 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-13 Monitoring Soft Reconfiguration

14 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-14 Router R3 Prepends Its Own Autonomous System Number as It Passes Routes from Router R1 to Router R2

15 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-15 MED Attribute: Router R2 Is the Best Next Hop to Get to Autonomous System 65500

16 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-16 Weight Attribute: Router R1 Uses Router R2 as the Next Hop to Reach 209.165.201.0

17 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-17 Weight Attribute: Router R1 Uses Router R2 as the Next Hop to Reach 209.165.201.0

18 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-18 Network for BGP Path Selection Example

19 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-19 Filtering BGP with Prefix Lists Examples

20 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-20 Filtering BGP with AS-Path Access Lists Example

21 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-21 Filtering BGP with Route Maps Example

22 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-22 BGP Peer Group Example

23 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-23 BGP with IPv4 as Both the Carrier and Passenger Protocol

24 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-24 BGP with IPv4 as the Carrier Protocol and IPv6 as the Passenger Protocol

25 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-25 BGP with IPv6 as Both the Carrier and Passenger Protocol

26 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-26 Exchanging IPv6 Routes over an IPv4 BGP Session Example

27 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-27 Exchanging IPv6 Routes over an IPv6 BGP Session Example

28 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-28 Network Objectives for BGP for IPv6 Example

29 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-29 Network and Addressing for BGP for IPv6 Example

30 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-30 Network for IPv6 Prefix List Example

31 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 7-31 Network for IPv6 Local Preference Example

32 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-1 Management Passwords

33 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-2 RADIUS Message Exchange

34 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-3 TACACS+ Message Exchange

35 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-4 SSH Topology

36 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-5 Logging Mechanisms

37 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-6 NTP Design Hierarchy

38 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-7 Reference NTP Topology

39 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-8 SNMP Elements

40 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-9 Periodically Archiving the Configuration

41 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-10 Routing Update Using Plain-Text Authentication

42 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-11 Routing Update Using Hashing Authentication

43 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-12 EIGRP Routing Authentication Reference Topology

44 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-13 EIGRP for IPv6 Routing Authentication Reference Topology

45 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-14 OSPF Routing Authentication Reference Topology

46 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-15 OSPFv3 Routing Authentication Reference Topology

47 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-16 BGP Authentication Reference Topology

48 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-17 BGP forIPv6 Authentication Reference Topology

49 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-18 VRF-Lite Reference Topology

50 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure 8-19 EVN Reduces the Network Infrastructure

51 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-1 IP Addresses and Subnetting Job Aid

52 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-2 Converting an Octet of an IP Address from Binary to Decimal

53 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-3 Converting IP Addresses Between Binary and Decimal

54 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-4 Determining an IP Address Class from the First Few Bits of an Address

55 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-5 A Subnet Mask Determines How an IP Address Is Interpreted

56 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-6 Network Used in the Subnet Mask Example

57 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-7 Calculating the Subnets for the Network in Figure B-6

58 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-8 Access Lists Can Control Packet Movement Through a Network

59 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-9 Standard IP Access Lists Filter Based Only on the Source Address

60 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-10 Processing of an Inbound Standard IP Access List Used for Filtering

61 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-11 Processing of an Outbound Standard IP Access List Used for Filtering

62 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-12 Network Used for the Standard IP Access List Example

63 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-13 Location of the Standard IP Access List Example

64 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-14 Processing Flow of an Extended IP Access List Used for Filtering

65 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-15 Network Used for the Extended IP Access List Example

66 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-16 Extended IP Access List Example with Many Servers

67 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-17 A Router Has Five Virtual Terminal Lines (Virtual Ports) by Default

68 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-18 The Telephone Network Uses an Addressing Hierarchy

69 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-19 Scalable Addressing Allows Summarization

70 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-20 Nonscalable Addressing Results in Large Routing Tables

71 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-21 Network for the VLSM Example

72 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-22 Center Block Shows Range of Addresses for VLSM for Division X in Figure B-21

73 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-23 Detailed IP Addressing of Division X in Figure B-21

74 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-24 Calculating Subnet Addresses for the Remote Site LANs in Figure B-23

75 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-25 Binary Representation of the Addresses Used in Figure B-23

76 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-26 Further Subnetting a Subnetted Address

77 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-27 Routers Can Summarize to Reduce the Number of Routes

78 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-28 Summarizing Within an Octet, for Router D in Figure B-27

79 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-29 VLSM Addresses Can Be Summarized

80 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-30 Routers Use the Longest Match When Selecting a Route

81 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure B-31 CIDR Allows a Router to Summarize Multiple Class C Addresses

82 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure C-1 Using CIDR with BGP

83 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure C-2 BGP Network for Summarization Examples

84 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure C-3 BGP Network for Summarization Examples

85 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure C-4 A Router Running BGP Keeps a BGP Table, Separate from the IP Routing Table

86 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure C-5 Network for BGP Communities Example

87 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure C-6 Network for BGP Communities Example Using Weight

88 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure C-7 Full-Mesh iBGP Requires Many Sessions and, Therefore, Is Not Scalable

89 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure C-8 When Router A Is a Route Reflector, It Can Propagate Routes Learned via iBGP from Router B to Router C

90 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure C-9 Example of a Route Reflector Design

91 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure C-10 Bad Route Reflector Design That Does Not Follow the Physical Topology

92 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure C-11 Good Route Reflector Design That Does Follow the Physical Topology

93 From Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide by Diane Teare, Bob Vachon and Rick Graziani (1587204568) Copyright © 2015 Cisco Systems, Inc. All rights reserved. Figure C-12 Router A Is a Route Reflector