What does EIGRP stub do?
The EIGRP stub routing feature improves network stability, security, and reduces resource utilization. Stub routing is commonly used in only hub-and-spoke network topologies.
What is EIGRP stub connected summary?
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. Redistribute:allows the stub router to advertise redistributed routes.
What is stub command?
The stub command allows you stub out functions, optionally specifying the return value.
What is summary route in EIGRP?
Route summarization is a method of representing multiple networks with a single summary address. It is often used in large networks with many subnets because it reduces the number of routes that the routers must maintain and minimizes routing updates.
What is OSPF stub router?
Cisco IOS provides an OSPF feature known as stub router advertisement. Simply put, a router can be configured to advertise all its OSPF routes with a maximum (infinite) metric, persuading traffic to flow over alternate paths.
What is stub and NSSA?
An NSSA is a bit like a stub as far as the internal OSPF topology is concerned, but it is allowed to connect to the outside world. In other words, it is allowed to have an ASBR border router. Imagine you had a branch office that had an external link, say, to the Internet.
What is PHP in Mpls?
Penultimate hop popping (PHP) is a function performed by certain routers in an MPLS enabled network. It refers to the process whereby the outermost label of an MPLS tagged packet is removed by a Label Switch Router (LSR) before the packet is passed to an adjacent Label Edge Router (LER).
What are stub routers 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 is EIGRP stub&leak-map?
EIGRP stub & leak-map Route leaking is a technique which is used for saving memory by summarizing different routes but still want some subnets to be preferred over others. With EIGRP Stub leak-map you can allow some of the routes to be advertised by using summary routes. For More EIGRP concepts try this basic EIGRP concepts Quiz
What is the topology of your network with EIGRP?
Checkout the topology diagram of network running with EIGRP we have two headquarter routers R1 & R2 which are connected with each other with the high speed LAN. Behind these two routers we have the enterprise network with all our LAN equipment. We have a remote or branch site having router R3 which connect to R1 & R2 with the WAN Links.
What happens when EIGRP network fails?
During convergence of EIGRP there are two main “routes” that a router can take when a network fails. The first is to check is a feasible successor ( Backup) route is available and if so, immediately switch over to this.