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Command Reference Guide
In Multi-VRF BGP the concepts of the address family and VRF instances are incorporated into the BGP
configuration structure. VRF instances are in themselves not tied to a specific protocol, and therefore,
control of multiple protocols within a single VRF is accomplished using an AF. Multi-VRF BGP also uses
the concepts of AFs to provide specific BGP configuration to a single BGP policy, and maintain control
over multiple BGP policies within a single AF.
In Multi-VRF BGP, the hierarchical structure of BGP configuration is as follows:
Global BGP settings (affecting all of BGP for this router)
!
VRF BGP settings (affecting only the default VRF)
Neighbor #1 Definition
Neighbor #1 common settings (common to all peering with neighbor #1)
exit
!
Address Family for the default VRF
AF BGP settings (affecting only this AF)
Neighbor #1 Reference
Neighbor #1 AF-specific settings
exit
exit
!
VRF name1
VRF BGP settings (affecting only this vRF)
Neighbor #2 Definition
Neighbor #2 common settings (common to all peering with neighbor #2)
exit
!
Address Family for VRF name1
AF BGP settings (affecting this AF)
Neighbor #2 Reference
Neighbor #2 settings specific to this AF
exit
exit
exit
Because the structure of BGP changed with the AOS 18.03.00 release, there are several sections of BGP
configuration commands. The following are the BGP configuration command sections for AOS products,
and are applicable to both the default and nondefault VRF instances:
•
BGP Command Set on page 2858
•
BGP Neighbor Command Set on page 2878
•
BGP Address Family Command Set on page 2895
•
BGP AF Neighbor Command Set on page 2916
60000CRG0-35E
Copyright © 2012 ADTRAN, Inc.
BGP Command Set
2859
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