EIGRP Metric Formula


metric = (10000000/bandwidth + delay) * 256


Use the lowest bandwidth and the cumulative delay of all links in the path.


EIGRP Default Bandwidth/Delay Values


Link Type

 

Bandwidth

 

Delay

10Mbps Ethernet

10000

1000

100Mbps Ethernet

100000

100

1Gbps Ethernet

1000000

10

Serial Lines <= T1

1544

2000


Page Notes


All bandwidth values on this page are stated in kbps. All delay values are in 10's of microseconds (μs) whereas doing a 'show interface' on a router will show delay in microseconds (μs).

Path 1 Link Values


Link

 

Bandwidth

 

Delay

Serial 1

256

5000

Serial 2

512

4000

Ethernet 2

10000

1000

Ethernet 3

100000

100


Path 2 Link Values


Link

 

Bandwidth

 

Delay

Ethernet 1

10000

1000

Serial 3

256

4000

Serial 4

256

4000

Ethernet 3

100000

100


Question


Which path has the lowest metric?


Click for new random bandwidth and delay values.


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