
x 114065 Rev. A
Specifying the MTU Size ........................................................................................5-24
Configuring OSPF on a Circuitless Interface .........................................................5-25
Configuring a Neighbor on an NBMA Interface ......................................................5-25
Configuring a Boundary Router ....................................................................................5-25
Enabling the Boundary Function ............................................................................5-25
Configuring AS External Advertisements ...............................................................5-26
Using the External Route Tag in an ASE ...............................................................5-28
Configuring Authentication on an Interface ...................................................................5-30
Configuring an Area Border Router ..............................................................................5-30
Configuring a Virtual Backbone Link through a Transit Area ..................................5-32
Defining a Range for a Summary Route ................................................................5-34
Configuring Border Services for a Stub .................................................................5-34
Applying IP Policies to OSPF Interfaces .......................................................................5-35
Chapter 6
Customizing BGP Services
BGP Concepts and Terminology ....................................................................................6-2
Interior BGP in Intra-AS Routing ..............................................................................6-3
IBGP in a Transit AS ................................................................................................6-3
BGP Path Attributes .................................................................................................6-5
BGP-4 Local Preference Values ...............................................................................6-7
BGP Implementation Notes ......................................................................................6-8
Configuring BGP on the Router ......................................................................................6-9
Enabling and Disabling BGP ....................................................................................6-9
Supplying a BGP Identifier .......................................................................................6-9
Identifying the Local AS .........................................................................................6-10
Configuring BGP for Intra-AS Routing ...................................................................6-10
Setting the Interval Timer .......................................................................................6-11
Allowing Redundant Connections ..........................................................................6-11
Enabling Multihop Connections ..............................................................................6-12
Disabling Dynamic Policy Configuration .................................................................6-12
Configuring BGP as a Soloist ................................................................................6-13
Establishing a Peer-to-Peer Connection .......................................................................6-13
Defining the Peer-to-Peer Connection ....................................................................6-13
Using the Circuitless IP Interface for a Peer-to-Peer Connection ....................6-14
Configuring BGP Peers over an Unnumbered Point-to-Point Link ...................6-14
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