Switch with high ACL capacity

Tue Nov 6 20:38:46 UTC 2018

Other than it completes the DDoS.

-----
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com

Midwest-IX
http://www.midwest-ix.com

----- Original Message -----
From: Zach Puls <zpuls at ksfiber.net>
To: Mike Hammett <nanog at ics-il.net>
Cc: 'nanog list' <nanog at nanog.org>
Sent: Tue, 06 Nov 2018 13:55:22 -0600 (CST)
Subject: RE: Switch with high ACL capacity

Wouldn’t it be more beneficial to just have a low-cost system for detection, then trigger an RTBH community advertisement to your upstream(s)?

Zach Puls
Network Engineer | MEF-CECP
KsFiberNet

-----Original Message-----
From: NANOG <nanog-bounces+zpuls=ksfiber.net at nanog.org> On Behalf Of Mike Hammett
Sent: Tuesday, November 06, 2018 13:47
To: Lotia, Pratik M <Pratik.Lotia at charter.com>
Cc: 'nanog list' <nanog at nanog.org>
Subject: Re: Switch with high ACL capacity

The intent is to see if I can construct a poor man's DDOS scrubber. There are low cost systems out there for the detection, but they just trigger something else to do the work. Obviously there is black hole routing, but I'm looking for something with a bit more finesse.

If I need to get a switch anyway, might as well try to take advantage of it for other uses.

-----Mike HammettIntelligent Computing SolutionsMidwest Internet ExchangeThe Brothers WISP

----- Original Message -----
From: Lotia, Pratik M <Pratik.Lotia at charter.com>
To: Mike Hammett <nanog at ics-il.net>, 'nanog list' <nanog at nanog.org>
Sent: Tue, 06 Nov 2018 12:29:15 -0600 (CST)
Subject: Re: Switch with high ACL capacity

Mike,

Can you shed some light on the use case? Looks like you are confusing ACLs and BGP Flowspec. ACLs and Flowspec rules are similar in some ways but they have a different use case. ACLs cannot be configured using Flowspec announcements. Flowspec can be loosely explained as 'Routing based on L4 rules' (there's a lot more to it than just L4). I doubt if a there is a Switch which can hold a large number of Flowspec entries.

~Pratik Lotia
“Improvement begins with I.”

On 11/6/18, 10:39, "NANOG on behalf of Mike Hammett" <nanog-bounces at nanog.org on behalf of nanog at ics-il.net> wrote:

    I am looking for recommendations as to a 10G or 40G switch that has the ability to hold a large number of entries in ACLs.

    Preferred if I can get them there via the BGP flow spec, but some sort of API or even just brute force on the console would be good enough.

    Used or even end of life is fine.

    -----Mike HammettIntelligent Computing SolutionsMidwest Internet ExchangeThe Brothers WISP

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