BGP: Difference between revisions
→Routing Information Base (RIB)
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BGP Routing Information Base consists of three parts as explained below:
* The Adj-RIBs-In:
The Adj-RIBs-In: BGP RIB-In stores BGP routing information received from different peers. The stored information is used as an input to BGP decision process. In other words this is the information received from peers before applying any attribute modifications or route filtering to them.▼
BGP RIB-In stores BGP routing information received from different peers.
The Local RIB: The local routing information base stores the resulted information from processing the RIBs-In database’s information. These are the routes that are used locally after applying BGP policies and decision process.▼
The stored information is used as an input to BGP decision process.
The Adj-RIBs-out: This one stores the routing information that was selected by the local BGP router to advertise to its peers through BGP update messages. Do not forget; BGP only advertises best routes if they are allowed by local outbound policies.▼
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* The Local RIB:
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These are the routes that are used locally after applying BGP policies and decision process.
* The Adj-RIBs-out:
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Do not forget; BGP only advertises best routes if they are allowed by local outbound policies.
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