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calculating eigrp metrics

question about calculating eigrp metric

see show ip route output below.

using the following formula to calculate the metric:

[(10000000/min bandwidth) +(cumulative delay/10)] _256

I come out with 6743405 for the metric.

the router comes up with 6743296.

Am I being too picky? probably yes, but isn't metric calculation supposed to be an exact science?

routix>show ip route 131.101.123.0

Routing entry for 131.101.123.0/24

Known via "eigrp 101", distance 90, metric 6743296, type internal

Redistributing via eigrp 101

Last update from 131.101.1.223 on Serial0/1.2, 2d02h ago

Routing Descriptor Blocks:

_ 131.101.1.223, from 131.101.1.223, 2d02h ago, via Serial0/1.2

Route metric is 6743296, traffic share count is 1

Total delay is 40200 microseconds, minimum bandwidth is 448 Kbit

Reliability 255/255, minimum MTU 1500 bytes

Loading 89/255, Hops 3

1 REPLY
Anonymous
N/A

Re: calculating eigrp metrics

Cisco Routers does not perform floating point operations but instead round down when calculating the EIGRP metrics at various point of the formula.

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