04-28-2008 07:32 AM - edited 03-05-2019 10:39 PM
Folks,
If i know the bandwidth and delay of 2 links connecting 2 routers together, how can i find out the total metric of eigrp for the 2 links? do i add them up? what is the formula to calculate eigrp bandwidth?
04-28-2008 07:36 AM
04-28-2008 01:01 PM
Hi Navin,
For simplicity, the eigrp metric is calculated the following way:
1. You should find the lowest bandwidth link (in kilobits per second) along the path between the 2 routers.
2. You should sum up the delays (in microseconds) on all links along the path.
Both data can be found by using the "show interface" command.
3. Metric = 256*(10.000.000/minimum_bandwidth + sum_of_delays/10)
Take into account, that eigrp will take the integer value of the (10.000.000/minimum_bandwidth) calculation.
I had some headaches to find it out, as my calculations did not match the calculations of the routing protocol.
At last I realized I should have calculated the integer value as I mentioned above.
Cheers:
Istvan
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: