Pytanko!
Jakie tabele możemy znaleźć na routerze z uruchomionym BGP?
Czy jest to: routing table i topology table.
Pozdrawiam
BGP tables Temat rozwiązany
Tablica routingu jest protocol-independent.
Topology table znajdziesz raczej w EIGRP.
Jesil chodzi o BGP to posiada on trzy wirtualne tablice:
Routes are stored in the Routing Information Bases (RIBs): namely, the Adj-RIBs-In, Loc-RIB, and the Adj-RIBs-Out. Routes that will be advertised to other BGP speakers must be present in the Adj-RIB-Out; Routes that will be used by the local BGP speaker must be present in the Loc-RIB, and the next hop for each of these rout es must be present in the local BGP speakers forwarding information base (FIB); and routes that are received from other BGP speakers are present in the Adj-RIBs-In.
An Adj-RIB-In is logically associated with each individual peer of a BGP speaker. It stores routing information that has been learned from the peer via inbound UPDATE messages. The contents of all the Adj-RIBs-In are available as input to the BGP decision process after being manipulated or perhaps even filtered by the Input Policy Engine associated with the peer.
The Loc-RIB contains only the preferred routes that have been selected as the best path to each available destination. The Loc-RIB is the result of the BGP decision process after incoming local policies have been applied by the Input Policy Engines.
An Adj-RIB-Out is logically associated with each individual peer of a BGP speaker. It stores routing information that the BGP speaker has selected for advertisement to the peer. The Adj-RIB-Out contains information from the Loc-RIB to be advertised to the peer after the associated Output Policy Engine has been applied.
Although the conceptual model presented here distinguishes between Adj-RIBs-In, Loc-RIB, and Adj-RIBs-Out, storing three separate copies of the routing information is not a requirement. In reality, most implementations actually store one copy of the information with pointers in order to conserve memory.
Zrodlo: Internet Routing Architectures, Sam Halabi.
PJ
Topology table znajdziesz raczej w EIGRP.
Jesil chodzi o BGP to posiada on trzy wirtualne tablice:
Routes are stored in the Routing Information Bases (RIBs): namely, the Adj-RIBs-In, Loc-RIB, and the Adj-RIBs-Out. Routes that will be advertised to other BGP speakers must be present in the Adj-RIB-Out; Routes that will be used by the local BGP speaker must be present in the Loc-RIB, and the next hop for each of these rout es must be present in the local BGP speakers forwarding information base (FIB); and routes that are received from other BGP speakers are present in the Adj-RIBs-In.
An Adj-RIB-In is logically associated with each individual peer of a BGP speaker. It stores routing information that has been learned from the peer via inbound UPDATE messages. The contents of all the Adj-RIBs-In are available as input to the BGP decision process after being manipulated or perhaps even filtered by the Input Policy Engine associated with the peer.
The Loc-RIB contains only the preferred routes that have been selected as the best path to each available destination. The Loc-RIB is the result of the BGP decision process after incoming local policies have been applied by the Input Policy Engines.
An Adj-RIB-Out is logically associated with each individual peer of a BGP speaker. It stores routing information that the BGP speaker has selected for advertisement to the peer. The Adj-RIB-Out contains information from the Loc-RIB to be advertised to the peer after the associated Output Policy Engine has been applied.
Although the conceptual model presented here distinguishes between Adj-RIBs-In, Loc-RIB, and Adj-RIBs-Out, storing three separate copies of the routing information is not a requirement. In reality, most implementations actually store one copy of the information with pointers in order to conserve memory.
Zrodlo: Internet Routing Architectures, Sam Halabi.
PJ