[ndnSIM] Stuck on the puzzle on ndnSIM1.0

[Alex Afanasyev]

Hi Wu,

Packet size depends not only on payload size, but name and, potentially, other fields.

While I don't really know why your packet is getting over 1.5k bytes, you can cheat and increase MTU size for the point-to-point link.

---
Alex

> On Sep 20, 2015, at 2:10 AM, 吴丹烨 <401809286 at qq.com> wrote:
> 
> Dear ndnSIM team members:
> 
>          I have stuck on a puzzle on the ndnSIM 1.0 of version when complementing my experiment.
>          When I try to put extra information into the payload of the content, the program runs with an error as the following:
> 
>          assert failed. cond="packet->GetSize () <= m_netDevice->GetMtu ()", msg="Packet size 1522 exceeds device MTU 1500 for Ndn;                fragmentation not supported", file=../src/ndnSIM/model/ndn-net-device-face.cc, line=115
> 
>          We have checked that the size of the payload of the modified data is 7, so I just don't understand why it comes with a packet size                over 1522. Could you help me figure this out?
> 
>          Thank all of you very much!
> 
> Sincerely.
>  from
>    Wu Danye
> Network Technology Research Center
> Institute of Computing Technology,C.A.S.
> Address :No.6 Kexueyuan South Road Zhongguancun,Haidian District Beijing,China
> Postcode :100190

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