6500 with SUP720: Output Policing

[tgyger]

Can anybody tell me which Bytes from the L2 Header are included in the policing calculation if i police the rate of a ethernet interface (with a policy-map)? i.e. Preamble, dot1q, mac......

Thanks for any feedback!

[mheusinger]

Hi there,

funny enough the info is found where one wouldn´t really expect it:

What Bytes Are Counted by IP to ATM CoS Queueing?

http://www.cisco.com/en/US/tech/tk39/tk824/technologies_tech_note09186a00800942f5.shtml

So the answer would be: no preamble and no CRC is counted. It is the same byte counter implemented as with show interface.

Hope this helps

Martin

[tgyger]

Hallo Martin

Tanks for your feedback! Today i measured that the vlan tag is alo excluded int the policing calculation. The calculation is based on IP-Packet+18Bytes Ethernet overhead.

Cheers und frohe Festtage :-)

[mheusinger]

Frohe Festtage!