should TCPs do MTU black hole detection?

Randy Bush randy at
Fri Nov 19 03:01:03 UTC 1999

>>>> yes-do-detection or no-we-want-the-problems-fixed.
>>>> Comments appreciated.
>>> I think that most ISP's would prefer that problems were fixed.
>> the choice seems 
>>   o when it breaks, the noc gets the call, debugs it, and it gets fixed
> 'it get fixed' if the problem is inside the network controlled by the
> NOC. If not??

noc tells user to lower mtu

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