
117356-B Rev. 00
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Supplying Override Values for an OSPF Announce Policy ................................................ 7-69
Supplying Matching Criteria for an OSPF Announce Policy .............................................. 7-71
Chapter 8
Configuring BGP Services
BGP Concepts and Terminology ...................................................................................................8-2
Peer-to-Peer Sessions ............................................................................................................. 8-3
Interior BGP Routing ............................................................................................................. 8-4
IBGP Route Server ................................................................................................................ 8-5
Route Server Cluster ....................................................................................................... 8-7
Multiple RS Clusters in an AS ....................................................................................... 8-9
Redundant Client-Server Connections ..........................................................................8-11
BGP Updates ........................................................................................................................ 8-12
Path Attributes .............................................................................................................. 8-12
BGP-4 Local Preference Value ..................................................................................... 8-14
BGP Implementation Notes ................................................................................................. 8-15
Configuring BGP on the Router ..................................................................................................8-16
Enabling and Disabling BGP ............................................................................................... 8-17
Supplying a BGP Identifier .................................................................................................. 8-19
Identifying the Local AS ...................................................................................................... 8-20
Disabling and Reenabling IBGP Support ............................................................................ 8-21
Specifying Route Types for IBGP Advertisements ............................................................. 8-22
Setting the Update Interval Timer ........................................................................................ 8-23
Allowing Redundant Connections ....................................................................................... 8-24
Enabling Multihop Connections .......................................................................................... 8-25
Disabling and Reenabling Dynamic Policy Configuration .................................................. 8-27
Configuring BGP as a Soloist .............................................................................................. 8-28
Configuring IBGP as a Route Server or Client .................................................................... 8-30
Assigning a Cluster ID to an IBGP Server .......................................................................... 8-31
Disabling and Reenabling Route Aggregation .................................................................... 8-32
Enabling and Disabling Black Hole Punching .................................................................... 8-33
Disabling and Reenabling the BGP-4 MED Attribute ......................................................... 8-34
Establishing a Peer-to-Peer Session ............................................................................................8-35
Defining a Peer-to-Peer Session .......................................................................................... 8-36
Initiating a Peer-to-Peer Session .......................................................................................... 8-38
Negotiating the BGP Version ............................................................................................... 8-40
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