The Big Squeeze
Randy Bush
randy at psg.com
Sun Mar 2 15:51:00 UTC 1997
>>> I would suggest that the largest percentage of flapping prefixes in the
>>> global routing system belong to prefixes longer than /19.
>>
>> Hence the convention to damp differently for different lengths. See one of
>> the foils in http://www.psg.com/~randy/970210.nanog/, which suggests that we
>> over here start following the European lead on this.
>
> Also, the dampening defaults:
>
> bgp dampening <halflife-time> <reuse> <suppress> <maximum-suppress-time>
>
> <halflife-time> default is 15 minutes
> <reuse-value> default is 750
> <suppress-value> default is 2000 (I thought it was 1000, but docs indicate
> otherwise)
> <max-suppress-time> default 4 times halflife-time
Wellllll. To be tactless .....
If the ops are heading toward the above-described convention, would it not
be cool if the router vendors made it the default?
randy
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