06-27-2007 04:42 AM - edited 03-03-2019 05:37 PM
The documentation on 10720 (MQC) shaping says "..CIR is measured in bits of IP packets per second, and includes the IP header and link-specific headers". It only mentions 'headers', not 'trailers'. Does this mean the 4Byte CRC trailer is not included in the CIR figure ? What about .1q headers - are they included already or is special allowance needed ?
Is there anything (else) non-standard about the way 10720 shapes onto gige/fe ?
07-03-2007 10:10 AM
The CIR is measured in bytes of IP packets per second, i.e., it includes the IP header, but not link specific headers.
07-04-2007 12:43 AM
Thanks for the reply.
This turns out to be a classic case of "don't trust the documentation".
In http://www.cisco.com/en/US/products/sw/iosswrel/ps1829/prod_configuration_guide09186a008009d848.html
it says
"CIR is measured in bits of IP packets per second, and includes the IP header and link-specific headers."
then, a few paragraphs further on, it says
"CIR is measured in bits of IP packets per second, and includes the IP header but not link-specific headers."
So take your pick !
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