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What are two differences between the RIB and the FIB choose two?
The RIB is a database of routing prefixes, and the FIB is the Information used to choose the egress interface for each packet. FIB is a database of routing prefixes, and the RIB is the information used to choose the egress interface for each packet.
What is RIB in network?
In computer networking, a routing table, or routing information base (RIB), is a data table stored in a router or a network host that lists the routes to particular network destinations, and in some cases, metrics (distances) associated with those routes.
What is Cisco RIB?
Routing Information Base (RIB) is a distributed collection of information about routing connectivity among all nodes of a network. Each router maintains a RIB containing the routing information for that router. RIB stores the best routes from all routing protocols that are running on the system.
Is RIB routing table?
The RIB is literally a routing table. The OSPF database and EIGRP topology tables are not routing tables.
What is RIB in Mpls?
RIB: This is a routing protocols database of routing prefixes that could potentially be installed in the routing table. LIB is the equivalent to RIB but for MPLS labels. It contains all the labels received from adjacent routers, usually over LDP. The LFIB has the best labels installed and is used for forwarding.
What is BGP RIB?
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.
How is the FIB similar to the routing table?
The FIB is conceptually similar to a routing table. It maintains a mirror image of the forwarding information contained in the IP routing table.
Which is better for forwarding rib or LFib?
LIB is the equivalent to RIB but for MPLS labels. It contains all the labels received from adjacent routers, usually over LDP. The LFIB has the best labels installed and is used for forwarding. Depending if a packet is IP or MPLS you will have different scenarios.
Which is better for fib injection rib or eBGP?
The means by which multiple RIB’s are programmed into a common (set) of FIB’s in a box will vary by implementation but this is where concepts like administrative distance are used (e.g. identical paths are learned via eBGP and OSPF, the eBGP is usually preferred for FIB injection).
Is the FIB the same as Layer 3?
In reality, the FIB not only includes the layer 3 information for forwarding packets, but also the layer 2 data required to forward the frame. So after the twitter conversation with Chris, I did a little more research.