Token buckets question

Hello Experts,

I have a question, how often tokens are added to token buckets?
Different docs give different explenations:

1.
Cisco book End-to-end QOS network design says:
"policer has two separate buckets that are filled EACH SECOND with two
separate token rates."
If I understand correctly, buckets are refilled only one time per
second. It does not look very often to me.

2.
RFC 2698 ( http://tools.ietf.org/html/rfc2698 ) says: " token count Tc
is incremented by one CIR times per second up to CBS."
Does this mean that if CIR=100,000bps then 100 tokens are put into the
bucket every millisecond ? Just curious, can router count tokens that
fast ?

Can someone please explain ?

Thanks

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Received on Tue Oct 11 2011 - 23:22:31 ART