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Question regarding OSPF cost

luke_bibbyluke_bibby Member Posts: 162
in CCNA & CCENT
I dont have any routers with GigE interfaces so I can't test this in my home lab, but I would really like to know what happens when calculating the cost for interfaces with a bandwidth of GigE or greater?

When using FE the cost is simply c = 10^8 / 10^8 = 10^(8 - 8 ) = 1, so what happens to the cost when you have a cost with a negative power?
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    EdTheLadEdTheLad Member Posts: 2,111 ■■■■□□□□□□
    No you change the reference bandwidth under the ospf process so that 1G = 1 or 10G = 1 whatever you wish.
    Networking, sometimes i love it, mostly i hate it.Its all about the $$$$
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    kryollakryolla Member Posts: 785
    As Ed has mentioned change your reference bandwidth from the default of 100 to whatever then go to the interface and change your bandwidth and see what your cost is. For routing protocols you dont have to have gige or 10g ports to test it out as they are not based on the access rate of the interface but based on the bandwidth setting.
    Studying for CCIE and drinking Home Brew
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