How to calculate cost of link.

[siyadh2020]

Hi,

How to calculate the cost of a link...? Is there any specific formula...?

[johnlloyd_13 · Accepted solution]

it depends on what IGP you are running. if you're using EIGRP it's usu
ally Bandwidth + Delay. for OSPF it's 100 Mbps / Bandwidth.

[siyadh2020]

Thank you John,

can u pls tell me the cost of RIP and BGP ...?

[johnlloyd_13 · Accepted solution]

RIP uses hop count while BGP use what we call "attributes." BGP is a bit complex to explain so kindly refer link below. do note that BGP is an exterior gateway protocol or EGP.

http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094431.shtml#bestpath