Metric and Forward metric

I dont understand what are the difference between these 2 terms.

e.g. 10.1.6.0 [110/20] via 10.1.13.3

110 is the AD, 20 is the metric but what is the forward metric?
Is the forward metric same for both EIGRP and OSPF?

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Comments

Iristheangel

Question for you: What books did you study to get through your CCNP Route exam?

Iristheangel

Take a look at this blog: https://ccieat21.wordpress.com/2009/03/12/ospf-forward-metric/

dppagc

Thanks. I got it. Forward metric is "metric" from the router to the ASBR. It is used as a tie breaker when both E2 routes (external distances) are the same.

However, I am still confused over this statement: "external cost set by ASBR (by default 20)"

Where does the 20 come from??
Is it that the AD of ebgp route (20) is installed as a metric in the ospf process??
Correct me if I am wrong.
I think this is where my confusion of AD and metric come from.