[ndnSIM] ndnSIM Digest, Vol 27, Issue 10
Hitesh Wadekar
wadekahn at clarkson.edu
Thu Feb 12 06:48:02 PST 2015
Hi Alex,
Could you please give me some steps that how to debug Dijkstra algorithm
from Boost graph library ? (are you guys using gdb or is there any other
methods to debug those? )
Thanks,
Hitesh
On Thu, Feb 12, 2015 at 1:05 AM, <ndnsim-request at lists.cs.ucla.edu> wrote:
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> Today's Topics:
>
> 1. Re: [ndnSIM2.0]: Data packet isn't receiving on the other
> nodes (Hitesh Wadekar)
> 2. How to get number of exclusions made for an interest in the
> content store (adithya srinivasan)
> 3. Re: How to get number of exclusions made for an interest in
> the content store (Alex Afanasyev)
> 4. shortestpath poblem (narjes aloulou)
> 5. Re: shortestpath poblem (Alex Afanasyev)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 11 Feb 2015 09:37:36 -0500
> From: Hitesh Wadekar <wadekahn at clarkson.edu>
> To: Alex Afanasyev <alexander.afanasyev at ucla.edu>
> Cc: ndnsim at lists.cs.ucla.edu
> Subject: Re: [ndnSIM] [ndnSIM2.0]: Data packet isn't receiving on the
> other nodes
> Message-ID:
> <
> CAGCGGjZPk9zmv9rj86-KR-s1PQRz0h6KsB9J1GTkDf2xqBaTrQ at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Thank you Alex, it was interest expiration issue.
> Also, Thanks for sharing the new NFD docs (
> http://named-data.net/techreport/ndn-0021-3-nfd-developer-guide.pdf).
>
> Do we have an ndnSIM IRC where we all can actively chat?
>
> Cheer,
> Hitesh
>
>
> On Mon, Feb 9, 2015 at 5:15 PM, Hitesh Wadekar <hitesh.wadekar at gmail.com>
> wrote:
>
> > Thank you Alex for the information. Let me increase the interest lifetime
> > and check whether that could be a problem or not.
> >
> > Regards,
> > Hitesh
> >
> >
> > On Mon, Feb 9, 2015 at 4:42 PM, Alex Afanasyev <
> > alexander.afanasyev at ucla.edu> wrote:
> >
> >> Hi Hitesh,
> >>
> >> There are several reasons why data packet be not propagated along the
> >> interest path. Most likely it mistmatches the interest or interest
> expires
> >> before data packet is retrieved.
> >>
> >> To help more, you need to give us a reproducible scenario/example. You
> >> can enable more NFD logging to see what is going on with the data packet
> >> (look for loggers starting ?nfd.? in
> >> http://ndnsim.net/2.0/doxygen/LogComponentList.html)
> >>
> >> ?
> >> Alex
> >>
> >> On Feb 9, 2015, at 1:37 PM, Hitesh Wadekar <wadekahn at clarkson.edu>
> wrote:
> >>
> >> Hello Guys,
> >>
> >> I started to porting my code to ndnSIM2.0, however, I am facing a weired
> >> issue, It would be really helpful for me if you guys pointed out some
> >> suggestion and the steps/tips to debug or identify the reason why it so.
> >>
> >> I have my code working on old version of ndnSIM, we thought that since
> >> recently we launched ndnSIM2.0, we have started to port the code on it.
> The
> >> issue is I am not able to receive the data packet on the other node.
> >> However, I am able to send interest packet on the all node. The code
> logic
> >> and everything is same as sample example given for Consume and Producer
> >> App. Also, I have verified the route as well along with signature/
> >> wireEncode.
> >>
> >> Since I am receiving 'Interest Packet" hence looks like FIB entries
> >> (routes) could not be a problem.
> >>
> >> Here is sample code that I am using,
> >>
> >> void ConsumerApp::SendDataPacket(shared_ptr<const Interest> interest) {
> >> if (!m_active)
> >> return;
> >> NS_LOG_FUNCTION(this << interest);
> >> std::cout<< "ConsumerApp: Sending a Data Packet -> "<<
> >> interest->getName() << std::endl;
> >>
> >> Name dataName(interest->getName());
> >> auto dPacket = make_shared<Data>();
> >> dPacket->setName(dataName);
> >> dPacket->setFreshnessPeriod(ndn::time::milliseconds(3000));
> >> dPacket->setContent(make_shared<
> >> ::ndn::Buffer>(m_virtualPayloadSize));
> >>
> >> Signature signature;
> >>
> >> SignatureInfo signatureInfo(static_cast<
> >> ::ndn::tlv::SignatureTypeValue>(255));
> >>
> >> if (m_keyLocator.size() > 0) {
> >> signatureInfo.setKeyLocator(m_keyLocator);
> >> }
> >>
> >> signature.setInfo(signatureInfo);
> >> signature.setValue(Block(&m_signature, sizeof(m_signature)));
> >>
> >> dPacket->setSignature(signature);
> >> dPacket->wireEncode();
> >> std::cout << "\n ConsumerApp: Data packet- > " << dPacket->getName
> ()
> >> << " is sending from face -> " << m_face << std::endl;
> >>
> >> m_transmittedDatas(dPacket, this, m_face);
> >> m_face->onReceiveData(*dPacket);
> >> std::cout << "\n";
> >> }
> >>
> >> I am looking forward to hear from you back.
> >>
> >> Thank you.
> >>
> >> Regards,
> >> Hitesh Wadekar
> >> _______________________________________________
> >> ndnSIM mailing list
> >> ndnSIM at lists.cs.ucla.edu
> >> http://www.lists.cs.ucla.edu/mailman/listinfo/ndnsim
> >>
> >>
> >>
> >
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> ------------------------------
>
> Message: 2
> Date: Wed, 11 Feb 2015 21:54:47 +0530
> From: adithya srinivasan <adith.ad at gmail.com>
> To: ndnsim at lists.cs.ucla.edu
> Subject: [ndnSIM] How to get number of exclusions made for an interest
> in the content store
> Message-ID:
> <
> CAHwx5S8TBh9mmKtrt0k-QMf50UiadGYwdS_xxgQAUDEWHmEK-Q at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hello
> My project involves a reactive mechanism for cache poisoning in ndn. And I
> need some help in getting hold of the number of exclusions made for an
> interest and also as to how to add exclusions to an interest.Please help me
> on this.
>
> Thank you
> Adithya S
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> ------------------------------
>
> Message: 3
> Date: Wed, 11 Feb 2015 08:40:01 -0800
> From: Alex Afanasyev <cawka1 at gmail.com>
> To: adithya srinivasan <adith.ad at gmail.com>
> Cc: "ndnsim at lists.cs.ucla.edu" <ndnsim at lists.cs.ucla.edu>
> Subject: Re: [ndnSIM] How to get number of exclusions made for an
> interest in the content store
> Message-ID: <4D050F2E-4973-4E74-AC6C-C4F3132F1548 at gmail.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Hi Adithya,
>
> Can you define more precisely "the number of exclusions"?
>
> As for attaching some information. For simulation purposes, you can always
> use NS-3 packet tags to add/retrieve arbitrary information to any packet.
>
> ---
> Alex
>
> > On Feb 11, 2015, at 8:24 AM, adithya srinivasan <adith.ad at gmail.com>
> wrote:
> >
> > Hello
> > My project involves a reactive mechanism for cache poisoning in ndn. And
> I need some help in getting hold of the number of exclusions made for an
> interest and also as to how to add exclusions to an interest.Please help me
> on this.
> >
> > Thank you
> > Adithya S
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> ------------------------------
>
> Message: 4
> Date: Thu, 12 Feb 2015 00:55:05 +0000
> From: narjes aloulou <aloulounarjes at yahoo.fr>
> To: ndnsim at lists.cs.ucla.edu
> Subject: [ndnSIM] shortestpath poblem
> Message-ID:
> <1423702505.38066.YahooMailBasic at web172104.mail.ir2.yahoo.com>
> Content-Type: text/plain; charset=utf-8
>
> Hi,
>
> Considering a large catalog (10? prefixes),
> "ndnGlobalRoutingHelper.CalculateRoutes ()" creates an infinite loop and
> crashes the system. My scenario consists of 300 nodes and I use ndnSIM 1.0.
>
> Any solution to resolve this problem , please?
> Are there any way to use ShortestPath without using the
> ndnGlobalRoutingHelper ?
>
>
> Best Regards
>
>
>
> ------------------------------
>
> Message: 5
> Date: Wed, 11 Feb 2015 22:05:26 -0800
> From: Alex Afanasyev <alexander.afanasyev at ucla.edu>
> To: narjes aloulou <aloulounarjes at yahoo.fr>
> Cc: ndnsim at lists.cs.ucla.edu
> Subject: Re: [ndnSIM] shortestpath poblem
> Message-ID: <19021100-E590-4A99-82A3-1CD816B2113B at ucla.edu>
> Content-Type: text/plain; charset="utf-8"
>
> Double check that you have build NS-3/ndnSIM in optimized mode.
> Implementation of CalculateRoutes internally uses Dijkstra algorithm from
> Boost graph library (which is known to be extremely slow in debug mode).
> It should be a problem for this number of prefixes and nodes.
>
> If still fails, you can compute all routes and prefixes offline and
> install them directly using FibHelper.
>
> --
> Alex
>
> > On Feb 11, 2015, at 4:55 PM, narjes aloulou <aloulounarjes at yahoo.fr>
> wrote:
> >
> > Hi,
> >
> > Considering a large catalog (10? prefixes),
> "ndnGlobalRoutingHelper.CalculateRoutes ()" creates an infinite loop and
> crashes the system. My scenario consists of 300 nodes and I use ndnSIM 1.0.
> >
> > Any solution to resolve this problem , please?
> > Are there any way to use ShortestPath without using the
> ndnGlobalRoutingHelper ?
> >
> >
> > Best Regards
>
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>
> End of ndnSIM Digest, Vol 27, Issue 10
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