QOS- traffic shaping

From: SHARMA,MOHIT (HP-Germany,ex1) (mohit.sharma@hp.com)
Date: Thu Jan 08 2004 - 12:35:37 GMT-3


HI All,

I have a requirement where I need to limit a customers SAN traffic to 20 MB
over a 45 MB link. The traffic from this class should not exceed 20 MB.

I have the following -

class-map match-any SAN
  description DRP SAN Traffic
  match ip dscp af13

policy-map QOS-core-voip-SAN-Pri
    class SAN
    bandwidth 20000
    shape average 20000000 3750000 7500000
    queue-limit 1000
    random-detect dscp-based
    random-detect dscp 14 500 1000 15

Will this do the trick??
I am not sure, if I should use shaping here or policing.

1.>Also my understanding is that with the above configuration 20 MB will
always be reserved for the SAN class during congestion and if there is no
SAN traffic then it will be allocated to other classes.
2.> The shaping will make sure that the traffic does not exceed the 20 MB
limit.

AM I right here?? IS there any better way to do the same??

Thanx as always for your kind inputs.

Smiles,

Mohit.



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