Deaggregation factor jump (Re: Weekly Routing Table Report)

Sun Feb 24 01:39:42 UTC 2008

> 
> David Conrad wrote:
>>
>> [cc's drastically reduced]
>>
>> On Feb 22, 2008, at 10:06 AM, Routing Analysis Role Account wrote:
>>> Analysis Summary
>>> ----------------
>>> BGP routing table entries examined:                              246872
>>>    Prefixes after maximum aggregation:                          124953
>>>    Deaggregation factor:                                          1.98
>>
>> Yow.  Last week it was 1.96 and this constitutes a significant 
>> increase.  Anybody have an idea of what happened?
> 
> Cox has jumped about 2k in the past month for me.  If I could ever 
> figure out what the OIDs are for BGP peers I would graph it.
> 

Something is happening since the 21st of this month.

Check out the plot of BGP entries and ASes on the first page of 
http://www.cidr.report.org. Both the number of BGP advertisements and 
the number of ASes have increased noticeably in the past couple of days.

Geoff

Justin Shore wrote: