Hi,
you have mentioned that "Generally, pro-active fragmentation is never done on the path except for reactive fragmentation during tcp transmissions." This means that I will not be able to see the bundles of smaller size (at least in the log messages of the daemon), is it correct? But, with the above options, is the reactive fragmentation* only* enabled? Meaning that *only *in TCP layer I could see these 100K blocks?
Thanks in advance,
Theodoros
On Fri, Feb 21, 2014 at 6:28 PM, Theodoros Bourchas bourchast@gmail.comwrote:
---------- Forwarded message ---------- From: Theodoros Bourchas bourchast@gmail.com Date: Fri, Feb 21, 2014 at 6:28 PM Subject: Re: [ibr-dtn] Fragmentation issue To: Johannes Morgenroth morgenroth@ibr.cs.tu-bs.de
Hi again,
I have set option fragmentation yes option blocksize 100K
and I sent 1M file with tar -cf - <filename> | dtnsend dtn://host2/inboxReceiver.
I expected to see 10 bundles created at the bundle layer, but only one bundle of 1M is created. At the same time, on the receiver side, I observed only one bundle of 1M.
How can I see the pro-active fragmentation? Does it take place with the aforementioned commands? What is the expected size of bundles in the receiver's side? 100K or not?
Thanks in advance,
Theodoros
On Fri, Feb 14, 2014 at 4:34 PM, Johannes Morgenroth < morgenroth@ibr.cs.tu-bs.de> wrote:
Hello Theodoros.
Am 14.02.2014 13:22, schrieb Theodoros Bourchas:
option foreign_blocksize 100K
This options tells the daemon to reject all bundles larger than 100K. If you like to fragment bundles pro-actively, you have to do that on the sender of the bundle. Thus, set the block_limit and fragmentation there. Generally, pro-active fragmentation is never done on the path except for reactive fragmentation during tcp transmissions.
Kind regards, Johannes Morgenroth
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