[j-nsp] EX4200 Output Policer

Pavel Lunin plunin at senetsy.ru
Sun Sep 26 04:11:13 EDT 2010


Hi Guliano,

Yes, this is correct that EX3200/4200 do not support policers for outbound
direction. Not absolutely but almost sure this is a hardware limitation and
nobody is going to change this.

What you can do is either to reconfigure the architecture so that you will
use input policers (e. g. with filter-based classification of dst IP or
something — yes, in most cases this is quite clumsy and not very scalable),
or use shapers instead of policers. In the later case, you should keep in
mind those switches support only 8 queues per port. So you won't be able to
have more than eight customers per port.

The ideal way is to not use switches for this :)

--
Pavel


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