
Configuring IP Services
5-24
• If you are using BGP for a multihomed AS (one that contains more than one
exit point), we strongly encourage you to use OSPF for your IGP and BGP for
your sole exterior gateway protocol, or use intra-AS IBGP routing.
If OSPF is the IGP, you should also use the default OSPF tag construction.
Using EGP or modifying the OSPF tags makes network administration and
proper construction of BGP path attributes more difficult.
• For any router supporting both BGP and OSPF, the OSPF router ID and the
BGP identifier must be the same.
Editing BGP Parameters
The following sections show you how to configure BGP parameters:
• “Configuring BGP on the Router” on page 5-25
• “Editing BGP Global Parameters” on page 5-28
• “Editing BGP-3 Global Parameters” on page 5-34
• “Editing BGP-4 Global Parameters” on page 5-35
• “Configuring a BGP Peer Relationship” on page 5-36
• “Configuring BGP AS Weights and Weight Classes” on page 5-47
• “Generating BGP Event Messages” on page 5-52
• “Deleting BGP from the Router” on page 5-55
For each BGP parameter, this chapter provides information about default settings,
valid parameter options, the parameter function, instructions for setting the
parameter, and the Management Information Base (MIB) object ID.
The Technician Interface allows you to modify parameters by issuing
set and
commit commands with the MIB object ID. This process is equivalent to
modifying parameters using Site Manager. For more information about using the
Technician Interface to access the MIB, refer to Using Technician Interface
Software.
Caution: The Technician Interface does not verify that the value you enter for
a parameter is valid. Entering an invalid value can corrupt your
configuration.
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