Re: [nznog] Affordable TICSA LI Solution and Support

29 Jun 2018

      55MPS will give max ~ 28G << 100G thruput @prema+sdf+64B+ifg. In the other direction, at 100G, with ave 512B your max is 20-25Mpps, in any case 40G is fine and you save
your firms $ on the 100G. Actually line capture at these speeds and thruputs have been doable for a good while now, mutli-Tbps is the challenge now. Capture/Filtering and processing are actually two different but interdependent things, as you know speed/thruput are normally qualified in terms
of packet sizes and app, nic profile:sustained/peak, For capture, L3 ACLs segment work etc its just fixed and static filtering; different to triggers which need higher state protocol/flow processing, db lookups, markov etc, alot more smarts and CPU CS this lowers the upper limit. CPU stats will be
very different.
regards
Brian
---------------------------- Original Message ----------------------------

Subject: Re: [nznog] Affordable TICSA LI Solution and Support

From: Joel Wirāmu Pauling 

Date: Sat, June 30, 2018 12:40 pm

To: brianparsons(a)subpico.com

Cc: "Shane Alcock" 

"nznog" 

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You can achieve 55MPS from the latest generation of Smartnics - enough to
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do 100GBits ports, with Layer3 ACLs ; with almost no CPU overhead. This is
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running pretty much Mainline Linux (with Vendor Specific Smartnic offloads
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i.e ASAP2 (mellanox), or Netronome). You then obviously need to dump it
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somewhere but with some NVMEE Cards on x8 Bus you can do that too - before
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shuffling it to slow and cheap archival.
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So ; no you don't need any real hardware smarts to do this today, there is
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off the shelf bits you can add to off the shelf x86 hardware. Just a little
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planning of your Capture box hardware and knowing what NIC's to use.
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-Joel
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On 30 June 2018 at 11:39,  wrote:
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Hi Shane,
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I appreciate your response and it sounds like you and the OpenLI team
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making great progress, i wish the project and deployments all the best.
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Writing packet capture isnt hard and anyone with a compiler can do it. Of
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course a little coding b/gnd helps and depending on what your trying to do,
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the level of hardware knowhow you need.
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Take 100% packet capture - 'shouldnt' be a problem at a constant 1 pps,
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but it will be if you take 2 s to process. Lets say you optimize hw down .5
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s with a DAG* (i worked their native's ~2004)* your still not going to
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make it. Timing values are too ilustrate my point and my take away from you
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response is OpenLI is basically targeting the general usecase here in NZ
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where say GE or 10G ~50/60 pk. % link utilization is still pretty OK and
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fit-for-purpose. I assume here your OpenLI app (NWO->IAF/MF
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ASN.1Enc/MD->HI) is well optimized from your excellent experience too. One
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suggestion maybe to bench it with XIA/Spirent STC for thruput vs
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line-rate/packet sizes vs expected from NOC. I dont use cap libraries or
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anything like that myself, my arch/interface is very different in exo/no
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net_dev, zero intr,dis flow handling depending on the ICs i got on hand (i
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have a french foreign legion policy for hardware - survive the bench and
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your in ). LI started here in NZ but was taken to another level in the US
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with massive linerates and volumes - vetting starts with corner case
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burntests, sinking IPGs <9.7ns ..<.97ns (100G+) with 1 Target frame - and
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if you can catchit send try to send that 1 frame, only after that you get
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to do something usefull and process it. Sounds easy as you can appreciate
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back in the day with north/south PCIE this was a massive feat, no SoCs
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root/pcie qpi we have today.
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Obviously this level of performance is bit OTT for our general LI small
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ISP market, but data volumes aint gonna go down - cheers for the heads up.
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Again wish you and the OpenLI project team much success.
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regards
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Brian Parsons BE(E&EE) MIEE | CEO TFE | LI TICSA SIGINT
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---------------------------- Original Message ----------------------------
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Subject: Re: [nznog] Affordable TICSA LI Solution and Support
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From: "Shane Alcock" 
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Date: Fri, June 29, 2018 2:38 pm
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To: brianparsons(a)subpico.com
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Cc: nznog(a)list.waikato.ac.nz
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Hi Brian, all,
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As the primary developer on the OpenLI project, I've been asked to
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address
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some points that you've raised and correct any misconceptions people
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might
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have about OpenLI as a result of this thread.
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For anyone concerned about a possible lack of experience in writing
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packet
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capture software, most of my 14 years working here at the WAND network
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research group has been dedicated to both writing and running software
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for
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high speed passive capture and analysis projects. I am one of the primary
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authors and maintainers of libtrace [1] [2], which is widely used both in
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academia and industry (as well as the OpenLI software itself). Libtrace
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supports a variety of capture methods and hardware, including DAG and
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DPDK,
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and has a parallel API for writing multi-threaded packet capture
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applications, so I have a reasonable understanding of what is required of
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both hardware and software to do high-rate packet capture and encoding.
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OpenLI is not offering a "complete" solution to your TICSA problems. We
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provide software that can capture packets and convert them into ETSI
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records, wrapped in a centralised provisioning system for managing
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intercepts, along with a mediation function that will push the resulting
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records to the appropriate agency. Integration of OpenLI into your
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network
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is a matter for the operator; however, we have been working closely with
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the organisations that responded to our initial requests for funding to
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get
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their deployments up and running.
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Longer term, we are starting to have conversations about what support
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models we want to provide in the future, especially after the feedback I
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received at the NZIX AGM last night, so watch this space. WAND has a long
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history of maintaining and continually improving any open-source software
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that it has released to the public [3] even when it is no longer
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specifically funded by our research income (libtrace being a prime
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example), so if OpenLI is being used then you can anticipate that WAND
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will
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continue to look after it.
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Finally, the core software components of OpenLI are getting close to
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complete. We have provisioning, mediation, multi-threaded and
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multi-input-interface distributable collectors. We have support for voice
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intercept (SIP + RTP + RTCP) and support for standard IP intercept
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(RADIUS
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+ IPv4), with IPv6 and static IP range intercepts not too far away. Most
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of
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the upcoming effort is focused on getting test deployments working within
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our partner networks, throwing "real" traffic at them and squashing any
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issues that come up. At this stage, it's looking like another month or
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two
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of work to finish the original set of requirements.
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Any other questions about the OpenLI project, feel free to get in touch
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with me directly.
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[1] S.Alcock, P. Lorier and R. Nelson, "Libtrace: a packet capture and
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analysis library", https://dl.acm.org/citation.cfm?id=2185382
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[2] Libtrace Team, "libtrace: C library for working with network packet
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traces", https://github.com/LibtraceTeam/libtrace
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[3] WAND network research group on GitHub, https://github.com/wanduow
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Thanks,
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Shane
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On Wed, Jun 27, 2018 at 11:49 PM,  wrote:
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Hi Nathan,
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We dont work with the NSA, and you dont need them to decrypt mobile data
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there are many keys used in a heirachy depending on the pairing mobile
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nodes eNB/UE/MME/HSS etc, you just need to be on the right interface to
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catch and process the exchange Control/User Plane (keys vary) is trivial
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for LI vendors like myself who carry key derivation/enc/dec logic and
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protocol sequencing to handle such an exchange. eg UE/HSS:CK,IK - a well
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known mapping is your USIM/AuC:K. As far as knocking on doors, yes
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absolutely probably me, i sell and support what I build and proud of
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it, but
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NSA lol, but we sell more off shore - why is that?
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My post was only intended to inform of a local option that could make a
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material difference to operators trying to meet their obligations under
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the
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ACT.
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As an LI provider i have met a couple of your members stung badly after
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signing offshore and we couldve helped them, also i was encouraged by
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the
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LEAs that speak at your conference - they obviously cant directly
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endorse
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but the spirit and intention of my post was not to offend just inform.
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TFE
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like most LI vendors do not advertise or market, and there are only a
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handfull of us OEMs that build LI solutions the rest are reseller middle
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men.
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As far as OpenLI free it is your developing, thats great but till then
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compliance is real, but we wish you all the best. 2050 is when you'l
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have
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enough field experience in CU/FIbre/hardware with ASN.1 + ETSI/CALEA at
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working at single thread code level. Lets say you do cobble something
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together before then - once you can multithread your kernel (tuplet
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flows)
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linerate 200g (64B) stream + LI let me know, sorry lets make it easy -
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start with GE @ 1.44 Mpps + LI and ASN enc over HI => garauntee you a
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DoS
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all day and dont even think about SLAs. But good luck with that, until
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then
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TICSA 2017
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The point is LI is not just about about Software. Hardware, firmware and
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real world field experience is required - how do you handle FEXT/NEXT on
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upstream active/passive TAPs can you run in rx only given the
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requirements
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and restrictions on spurious noise and traffic, there are many tech and
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capability requirements of the probe/mf which ETSI Parts are you going
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to
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do first?. HA/asymmetric network deployments (non-collo paths), how will
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you handle this situ? and TIER 4 support on commercial fabrics (Open
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generally means zip support - so i geuss nothing is realtime). If you do
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all this how will you be able to demonstrate at any point in time the
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two
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core aspects of TICSA 'format usability' and 'nw readiness'.
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We do LI not 'network security', ie. we build the 'device' and MF as
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descirbed in the NZ Search and Surveillance Act 2012 and NZ TICSA 2017.
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regards
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Brian Parsons BE(E&EE) MIEE | CEO TFE | LI TICSA SIGINT
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cheers
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---------------------------- Original Message
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Subject: Re: [nznog] Affordable TICSA LI Solution and Support
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From: "Nathan Ward" 
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Date: Wed, June 27, 2018 10:06 pm
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To: brianparsons(a)subpico.com
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Cc: nznog(a)list.waikato.ac.nz
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On 27/06/2018, at 11:45 AM, brianparsons(a)subpico.com wrote:
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We are Telecom Forensics, an OEM of LI solutions based on the Kapiti
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Coast.
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Spam spam spam
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Are you the chap from Kapiti who a few years ago was knocking about
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claiming that the NSA had given him some sort of secret codes to
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magically
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decrypt all mobile data, or was that someone else?
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Not too sure why you’d be pushing this here, when there’s a community
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effort to develop something open source and free.
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I’m looking forward to where the OpenLI project goes, and I’d suggest
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that
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anyone looking for LI tools look towards the OpenLI project, which has
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been
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discussed on this before, and at the NZNOG conference, and I believe
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will
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be discussed tomorrow at the NZIX AGM.
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ps. It’s free, but, go support it with some $, it’ll still be cheaper
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than commercial solutions.
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NZ: Highest per capita ETSI compliant LI implementors in the world.
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How long before Fincham pops up saying “oh also there’s an OpenLI
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project you should look at”? Place your bets.
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Looking forward to laughing about this one over drinks tomorrow night.
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--
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Nathan Ward
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_______________________________________________
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NZNOG mailing list
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NZNOG(a)list.waikato.ac.nz
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https://list.waikato.ac.nz/mailman/listinfo/nznog
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_______________________________________________
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NZNOG mailing list
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https://list.waikato.ac.nz/mailman/listinfo/nznog
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Re: [nznog] Affordable TICSA LI Solution and Support

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