What is the admin distance for EIGRP?
90
This is because EIGRP routes have (by default) the administrative distance of 90, while RIP route have a higher administrative distance of 120.
What is the default administrative distance of EIGRP and OSPF?
The supplied value will be applied to the administrative distance of all OSPF routes in the local routing table. The default administrative distance for OSPF routes is 110.
What is EIGRP feasible distance?
The Feasible Distance (FD) is the distance from the current router to the destination router. Feasibility Condition (Requirement) Within EIGRP there is requirement which must be met for a route to be considered feasible and loop-free.
What is EIGRP metric?
EIGRP determines the value of the path using five metrics: bandwidth, load, delay, reliability and MTU. EIGRP uses Five different messages to communicate with its neighbor routers. EIGRP messages are Hello, Update, Query, Reply, and Acknowledgement.
What is FD and RD in EIGRP?
Feasible distance (FD) – the metric of the best route to reach a network. That route will be listed in the routing table. Reported distance (RD) – the metric advertised by a neighboring router for a specific route. It other words, it is the metric of the route used by the neighboring router to reach the network.
How do I change the administrative distance in EIGRP?
The lower the better…as you can see EIGRP has a lower administrative distance (90) than OSPF (110) so we will use EIGRP in my example. Keep in mind: The administrative distance is only local and can be different for each router….How to configure Administrative Distance.
| Source | Administrative Distance |
|---|---|
| Static route | 1 |
| EIGRP summary | 5 |
| External BGP | 20 |
| EIGRP | 90 |
How EIGRP choose the best path?
By default EIGRP uses bandwidth and delay of the line to determine the best path to a remote network. However, if desired, EIGRP can use a composite of four metrics: bandwidth, delay, reliability, and load.
What are the EIGRP K values?
EIGRP Metric K Values Explained with Examples
| K-Value | Component | Description |
|---|---|---|
| K1 | Bandwidth | Lowest bandwidth of the route |
| K2 | Load | Worst load on the route based on the packet rate |
| K3 | Delay | Cumulative interface delay of the route |
| K4 | Reliability | Worst reliability of the route |
Why administrative distance is important?
Administrative distance is the feature that routers use in order to select the best path when there are two or more different routes to the same destination from two different routing protocols. Administrative distance defines the reliability of a routing protocol.
Is EIGRP a distance vector?
EIGRP is an enhanced distance vector protocol that evolved from Cisco’s IGRP. Although IGRP is now obsolete, a network that still uses routers based on the protocol can interoperate with EIGRP-based routers because the metrics used with one protocol can be translated into the metrics of the other protocol.
How does EIGRP calculate FD and RD?
The FD is calculated by adding our neighbor’s RD to the metric required to reach our neighbor. Therefore, if we add the EIGRP metric between routers R1 and R2 to router R2’s RD, we get the FD (that is, the total distance) required for R1 to get to the 10.1. 1.8 /30 via router R2.
How EIGRP metric is calculated?
EIGRP uses these scaled values to determine the total metric to the network: metric = [K1 * bandwidth + (K2 * bandwidth) / (256 – load) + K3 * delay] * [K5 / (reliability + K4)]
How do I set administrative distance?
To set an administrative distance:
- For RIP and OSPF, issue the distance command in Router Configuration mode. host1(config-router)#distance 100. The range for administrative distance is 0–255.
- For IS-IS, issue the distance ip command in Router Configuration mode. host1(config-router)#distance 80 ip.
What is EIGRP default metric?
Metric calculation is a critical component for any routing protocol. EIGRP uses multiple factors to calculate the metric for a path. Metric calculation uses bandwidth and delay by default but can include interface load and reliability, too.
Which is faster EIGRP or OSPF?
The network convergence time is faster than OSPF networks, because EIGRP network can learn the topology information and updates more rapidly. The performance of packet delay variation for EIGRP is better than for OSPF.
Which metric does K4 in EIGRP correspond to?
Why EIGRP is faster than OSPF?
How does EIGRP calculate reported distance?
-Reported Distance is the metric/value between the destination and the first hop next to the source. (Total metric along the path to a destination network as advertised by an upstream neighbor). In this particular example the Reported Distance is 307200 ( [10,000,000/10,000]+200×256 ).