Please help me...Calculating metrics for FD across default Serial interfaces

Tumada

Default values are in effect:
Bandwidth is 1544 between the two ends
Delay is default at 20000
no other metrics are in effect:

Show ip eigrp topo from router 1:

P 192.168.2.32/28, 1 successors, FD is 2169856
via connected, Serial0/0
What I don't understand is how they get that FD metric over a default serial link.
Here are my calculations and Metric which is much larger...what am I doing wrong here:

Metic = 256(10000000/1544) + 256(20000)
256*6476.68 +5120000
1658030+5120000
6778030 total Metic

The 1544 is the least-bandwidth between both interfaces. I thought I understood metrics until I came across this example in the book.

Zartanasaurus

You're calculating wrong. Divide the interface reported delay by 10. It's delay in tens of microseconds.

Tumada

Thanks for pointing that out.

Metic = 256(10000000/1544) + 256(2000)
256*6476 +5120000
1657856+512000
2169856 total Metic

two things I was doing wrong. First i foregot to divide the delay by 10 (big difference) Second, I used a calculator to multiply the BW and included the nubers after the decimal. Once I adjusted the delay and used whole numbers on the BW calculation the metic fell into place.

thanks

hbk

Yep, remember that the delay is already in multiple of 10.