Policy Map question.

[mahesh18]

Hi all,

Here is output of policy map from my router

sh policy-map
  Policy Map CORP_POLICY
    Class MATCH-FTP
     police cir 56000 bc 1750********************************1
       conform-action transmit
       exceed-action drop
    Class MATCH-HTTP
     police cir 8000 bc 1500******************************2
       conform-action transmit
       exceed-action drop
    Class class-default
     police cir 50000 bc 1562***********************************3
       conform-action transmit
       exceed-action drop

just need to confirm that line 1 means that

if FTP traffic exceeds 5600  then it will limit the bandwidth to 1750 ?

also what does bc means here ?

thanks

mahesh

[cadet alain]

Hi,

It means traffic belonging to class-map MATCH-FTP will be policed to 56000 bps and all traffic above will be dropped.

Bc= commited Burst

For explanation take a look here: https://www.cisco.com/en/US/tech/tk543/tk545/technologies_q_and_a_item09186a00800cdfab.shtml#policing

Regards.

Alain.

[mahesh18]

Hi Alain,

Thanks for reply.

for config ---  police cir 56000 bc 1750

i config the police cir to 560000  but depending on my wan connection bc was automatically adjusted to 1750 right ?

so it means that my Internet service provider will give me bc 1750 and if traffic exceeds that then it will drop it right ?

thanks

mahesh

[cadet alain]

so it means that my Internet service provider will give me bc 1750 and if traffic exceeds that then it will drop it right ?

It has nothing to do with your ISP as you are policing traffic, you're doing it on your router no?

Bc is calculated  by IOS with the bandwidth of your interface to guarantee the CIR of 56 kbps you decided to police to.

Regards.

Alain.