nanog mailing list archives

Re: Common operational misconceptions


From: Masataka Ohta <mohta () necom830 hpcl titech ac jp>
Date: Tue, 21 Feb 2012 12:37:07 +0900

George Bonser wrote:

I, in fact, HAVE read the RFC.

You don't, at all.

    The initial value for search_high SHOULD be the largest possible
    packet that might be supported by the flow.  This may be limited by
    the local interface MTU, by an explicit protocol mechanism such as
    the TCP MSS option, or by an intrinsic limit such as the size of a
    protocol length field.

It is a section on "search_high", while your question in your
previous mail was on "eff_pmtu":

First, it sets eff_pmtu to 1400B. OK?
Where did you get 1400 from?

Note that rest of your mail also contains a lot of
misunderstandings on the RFC. But, as you don't read
the RFC, collecting them is a waste of time.

Read the RFC thoroughly again and again, 10 times a day
for 30 days. Then, I may reply your further questions if
asked off list.

PERIOD.

                                        Masataka Ohta


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