[f-nsp] #LifeBeyond750k [was: Where have all the MLX/XMR users gone to?]

[Jörg Kost]

Oh well, I am more into blocking certain ASNs and insert a default route 
into the network. I took some of the top de-aggregation networks from 
the CIDR-reports, that I am not interested in, and generated some 
negative list.

Input:
https://github.com/ipcjk/asnbuilder/blob/master/customASN.txt
Output:
https://github.com/ipcjk/asnbuilder/blob/master/saveTheFIB.txt

This saves around 90k IP4 routes and 13k IP6 routes, nothing fancy 
there. This can be fine-tuned to bare minimum, enriched with *-flow or 
telemetry data and aligned with downstream customers.

So instead of our current positive tracking (which ASN accumulates 
what-bytes), we could apply negative tracking (which ASN is not peer, is 
not having traffic, ..) and add this to our saveTheFIB as-path. If the 
netflow collector sees traffic to a ASN, put the routes back into the 
system.

Long-term I am thinking about the SLX9640 as a replacement for our edge 
MLXE-4s. Also I often jealously look at the CER-RT-X FIB and cry ;)

Jörg

On 29 Jan 2019, at 11:30, Fredy Kuenzler wrote:

> Am 29.01.19 um 10:59 schrieb Jörg Kost:
>>> Meanwhile, BGP4 aggregation is our new buddy... #LifeBeyond750k.
>>
>> Would be interested to know your aggregate / filter criteria,
>> anything fancy that we all can use?  Have you already installed some
>> filter for the tragedy of the IPv6 routing table?
> Regarding the aggregation aka #LifeBeyond750k I presented some concept
> ideas at SwiNOG 33. See the presentation (May 2018) here.
>
> http://www.swinog.ch/wp-content/uploads/2018/07/Fredy_Kuenzler_life_beyond_750k_init7.pdf
>
> We made further tests since and we are also addressing the IPv6
> aggregation with priority these days and should be able to come up 
> with
> configuration examples shortly.
>