Hello,

We are currently attempting to do QoS with our 3550 for customers in our collocation. However, when monitoring the real-time usage of the interface using our monitoring software, it does not appear to work. For example we have a customer limited to 3Mb, but they frequently jump as high as 6Mb.

We are running Version 12.1(22)EA1a. Relevant portions of the config follow:

! Mls qos ! class-map match-all customerA match any match input-interface FastEthernet0/1 match access-group 101 match access-group 102 ! policy-map customerA class customerA bandwidth 3000 police 3000000 8000 exceed-action drop ! interface FastEthernet0/1 description CustomerA - 3MB/s switchport access vlan 4 switchport mode access switchport protected mls qos monitor packets flowcontrol send off service-policy history service-policy output customerA no cdp enable spanning-tree portfast ! access-list 101 permit ip host X.X.X.X any access-list 101 permit ip host X.X.X.X any access-list 102 permit ip any host X.X.X.X access-list 102 permit ip any host X.X.X.X

As an aside, Cisco literature mentions 3550's can do rate-limiting, but I have been unable to find any literature on how, as the usual commands don't seem to work. Is there a better way to do what I am trying to do?

Thanks for any help,

Tim