[c-nsp] Detection of Link Performance degradation

[Dracul]

Hi All,

Is there a way you can have CISCO routers,switches to proactively detect
that your link is degdrading the actual bandwidth its supposed to have?
for example, within a period of 24hours. given a 2MB leased line link. How
can you analyze that the bandwdith has degraded with reference to the
2MB speed? I know MRTG is one way of analysis. Is there a more proactive
tool than that?

THanks in advance!

Chris