What is stub in EIGRP?

What is stub in EIGRP?

Stub routers in EIGRP, are nodes that are designed to be only directly connected to networks and are not designed to be in transit for the data plane. Meaning, EIGRP stub routers are designed for very small branch office routers or for edges of the network.

What are different route types in EIGRP?

EIGRP supports several types of routes: internal, external, and summary. Internal routes originate within the EIGRP autonomous system. External routes are learned from another routing protocol or another EIGRP autonomous system. Summary routes are routes encompassing multiple subnets.

What is EIGRP stub receive only?

Receive-only: The stub router will not advertise any network. Connected: allows the stub router to advertise directly connected networks. Static: allows the stub router to advertise static routes (you have to redistribute them). Summary: allows the stub router to advertise summary routes.

What are the three main data structures used by EIGRP?

EIGRP stores its operational data, configured parameters, and statistics in three main data structures:

• Interface table:
• Neighbor table:
• Topology table:

What is EIGRP stub leak-map?

The EIGRP stub feature is useful to prevent unnecessary EIGRP queries and to filter some routes that you advertise. What if you want to configure your router as a stub router but still make an exception to some routes that it advertises? That is possible with the leak-map feature.

What type of protocol is EIGRP?

Dynamic routing Protocol performs the same function as static routing Protocol does. In dynamic routing Protocol, if the destination is unreachable then another entry, in the routing table, to the same destination can be used. One of the routing protocols is EIGRP.

What are stub areas?

A stub area is an area in which advertisements of external routes are not allowed, reducing the size of the database. A totally stubby area (TSA) is a stub area in which summary link-state advertisement (type 3 LSAs) are not sent.

What is EIGRP stub leak map?

What is passive interface in EIGRP?

Passive Interfaces Passive EIGRP interfaces do not send out or process EIGRP hellos, which prevents EIGRP from forming adjacencies on that interface. To configure an EIGRP interface as passive, you use the command passive-interface interface-id under the EIGRP process for classic configuration.

What is active and passive state in EIGRP?

Note – The EIGRP term “active” refers to a route for which a router is currently using the Query process to find a loop-free alternative route. Conversely, a route is in passive state when it is not in an active state. The neighboring routers view any received Query messages as an input event.

What is a stub in network?

A stub network, or pocket network, is a somewhat casual term describing a computer network, or part of an internetwork, with no knowledge of other networks, that will typically send much or all of its non-local traffic out via a single path, with the network aware only of a default route to non-local destinations.

What is poison reverse?

In a computer network that uses the Routing Information Protocol (RIP) or other distance vector routing protocol, poison reverse is a loop avoidance process.

What is the difference between stub area and NSSA?

Difference between NSSA/Totally NSSA and Stubby/Totally Areas is; NSSAs redistribute external routes(Type-7 LSA) into the Area., Stubbys don’t. NSSA was created because Stubby areas block all Type-5 external LSAs. So Stubby Area can not learn any external LSAs. NSSA lets stub area to learn external Areas(Type-7 LSAs).