Re: Uploads via ppp stalling
On Sun, 06 Aug 2006 02:38, cr wrote:
> I've suddenly started having great trouble uploading JPGs of 50K or so to
> Trademe (our local New Zealand Ebay equivalent). They seem to be
> 'choking' - that is, the first ~10K's go OK, then a slight gap, then a few
> more K's, then a longer gap, then a very few K's, then a still longer gap,
> and so on - it takes about 3 minutes to upload a 30K JPG! (Bigger ones
> just time out).
> ~2 weeks ago it worked fine.
A kind list member said (in a private post) "Maybe MTU problem"
(I'd never heard of a MTU!)
For any other newbies' benefit -
MTU = Max. Transmission Unit ( roughly ~ packet size)
Typical values for use with PPP are 500-2000 (so Google says)
For ppp in Debian, can set it by uncommenting the line in
/etc/ppp/options to read e.g.
In my case, 1024 improved things but wasn't the perfect cure,
mtu 512 fixed things completely, I just did a 160K upload and it went