Juniper JUNOSE 11.2.X BGP AND MPLS User Manual

List of Figures
Part 1 Border Gateway Protocol
Chapter 1 Configuring BGP Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figure 1: BGP Peers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2: Internal and External BGP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3: Interior Gateway Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 4: Routing Without CIDR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 5: Routing with CIDR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 6: Transit Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 7: Nontransit Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 8: IPv6 Routing over TCP IPv4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 9: IPv6 Routing over TCP IPv6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 10: Configuring Neighbors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 11: BGP Peer Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 12: Using EBGP-Multihop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 13: Prefixes Originating in an AS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Figure 14: Redistributing Routes into BGP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Figure 15: Advertising a Default Route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Figure 16: Setting a Static Default Route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Figure 17: Configuring Aggregate Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Figure 18: Advertising a Route When Another Route is Present . . . . . . . . . . . . . . . 66
Figure 19: Advertising a Route When Another Route is Absent . . . . . . . . . . . . . . . 67
Figure 20: Advertising a Default Route When Another Route is Present . . . . . . . . 69
Figure 21: Filtering with Access Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Figure 22: Filtering Routes with an Access List . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Figure 23: Filtering with AS-Path Access Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Figure 24: Assigning a Filter List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Figure 25: Route Map Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Figure 26: Communities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Figure 27: Community Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Figure 28: Configuring Next-Hop Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Figure 29: Next-Hop Behavior for Broadcast Multiaccess Media . . . . . . . . . . . . . 107
Figure 30: Next-Hop Behavior for Nonbroadcast Multiaccess Media . . . . . . . . . 108
Figure 31: Assigning a Weight to a Neighbor Connection . . . . . . . . . . . . . . . . . . . 109
Figure 32: Configuring the Local-Preference Attribute . . . . . . . . . . . . . . . . . . . . . . 113
Figure 33: The Origin Attribute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Figure 34: AS-Path Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Figure 35: Configuring the MED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Figure 36: Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Figure 37: Disabling Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Figure 38: Administrative Distances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
xxvCopyright © 2010, Juniper Networks, Inc.

Juniper JUNOSE 11.2.X BGP AND MPLS Specifications

General

Brand	Juniper
Model	JUNOSE 11.2.X BGP AND MPLS
Category	Software
Language	English