[Olsr-users] olsrd overhead

[Henning Rogge]

Am Thursday 09 April 2009 08:59:01 schrieb Hannes Gredler:
> Juliusz Chroboczek wrote:
> >>> Now, I'd expect one summary entry to take 6 bytes, which means that for
> >>> a 100 node network, you'd be spending 600 bytes/s of traffic for
> >>> distributing summaries.  Which is definitely reasonable.
> >>
> >> 8 bytes, because we include a message type (to be able to use the same
> >> stuff for other message types later).
> >
> > Why not have a single message type followed by a sequence of 6-byte
> > entries ?  You could be even more efficient -- sort the router-ids
> > lexicographically, and only store the deltas between successive ids, as
> > I do in Babel.  (Think IPv6.)
OLSR TCs overwrite their old information, so I see not much use for delta 
information. It doesn't matter how old your information is, you just need the 
new one.

> that would make sense, agreed. we are still able to change the packet
> format, as the gin as not out of the bottle yet ...
I think we can skip it, especially if we look at OLSRv2. We can set attributes 
for whole address ranges without wasting space every times in packetbb (the 
olsrv2 packet format). Oh, and we get address compression (ipv6 ! :) ) too. ;)

> >> Will need additional work to run smooth
> >
> > No doubt about it.  It's a new protocol.
> >
> > Please keep me informed.
I would say it's an extension, because it works well together with old 
clients. ;)

Henning

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