A router running EIGRP has learned the same route from two different paths. Which parameter does the router use to select the best path?
A router running EIGRP has learned the same route from two different paths. Which parameter does the router use to select the best path?
When a router running EIGRP (Enhanced Interior Gateway Routing Protocol) learns the same route from multiple paths, it uses the metric to select the best path. EIGRP's metric is a composite value based on several factors, including bandwidth, delay, reliability, and load. The path with the lowest metric value is chosen as the best path. Administrative distance is used to compare routes from different routing protocols, and cost is specifically associated with OSPF (Open Shortest Path First). Therefore, the correct answer is 'metric'.
1 routing protocol for 2 learned paths = Metric 1 learned path from 2 routing protocols = Administrative Distance
are you sure about your second statement? In many questions, when there are two routing protocols and a path, we look at the prefix length, not the AD. For example on the page preceding question 227 in the answers an OSPF route is preferred over a static route.
ARE WE ON THE SAME PAGE?? Question #227Topic 1 Which value is used to determine the active router in an HSRP default configuration?
The default priority is 100
Prefix is dominant when the routes are already installed on the routing table (already learned). When a router is choosing which to install on the routing table, it looks at AD. When choosing multiple paths from one protocol, metric.
forgot to mention the last statement I made is still when the router is trying to choose what path to install. Only look at prefix when the routes are already installed in the table.
router installing best route into routing table>1) AD 2)metric || router choosing path for forwarding the packet 1)longest prefix match 2)AD 3)metric
A tricky question. Let me try to explain: According to the question, the destination is same i.e. same route, but it's learned using two different paths. Normally, router uses administrative distance as a parameter to select the best path when multiple routing protocols are used, but since both paths are running with EIGRP, so both have the same AD (=90) so it's a tie. Next the router will consider the metric value for path selection. So, C should be the correct option here.
RIP - hop (both 3 letters) OSPF - cost (both 4 letters) EIGRP - metric (one 5 other 6... but you got the point)
Metric EIGRP Cost OSPF Hop count RIP
Guys please dont get confused here in question we are asked Router is only running EIGRP and have multiple path to same destination, If we have multiple protocols we use Longest Prefix to get the most specific route, if multiple routs are there with multiple protocols then we use AD values to decide best route. When it comes to only 1 protocol is running, we can't use AD, we use Metric. For every protocol we have different Metric. 1)Metric for EIGRP is Metric itself, which has been derived by using delay and bandwidth. 2)Metric for OSPF is Cost, which has been derived by using refrence bandwidth and speed of interface. 3)Metric for RIP is Hop counts.
Metric EIGRP Cost OSPF Hop count RIP
I love the fact that it explains why the awnser is metric and then selects cost...
Metric for EIGRP
When a router running EIGRP learns the same route from multiple paths, it selects the best path based on the metric, not the administrative distance or as-path. Therefore, the correct answer is C. metric. The EIGRP metric is calculated based on several parameters such as bandwidth, delay, reliability, and load. The router calculates the metric for each path it learns and selects the one with the lowest metric as the best path. The metric can be influenced by adjusting the weights of the individual parameters using the K values.
Metric is used EIGRP. OSPF uses cost
Given is NOT correct
Given is NOT correct
C is perfect
it´s C
I am super confused about this answer. EIGRP metric is calculated based on the different factors ( bandwidth, delay, reliability and load) OSPF metric is calculated based on the different links' capacity and load. Therefore, it chooses the link that is more reliable.
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It will use metric