Title: RE: SAR panic
Dear Slava,
While ESAR is not implemented I think a graceful way to hanlde it is
to reduce client sdu size sent to wsp to SAR_SEGM_SIZE*255.
Also I can change SAR_SEGM_SIZE to be let's say 1300.
it will change the maximum file size to 331K from 146K.
But it may cause
Vjacheslav Chekushin wrote:
Hi, Igor.
I think, first of all, panic must be eliminated.
yep, agreed. Panics do stop wapbox service. Hence a download of a too
large file kills wapbox, which is not the way we want it in an
operational environment.
If something can't be done, then other clients
Title: RE: SAR
Hi to all
I need an opinion of anyone
familiar with WTP and SAR handling.
Here is the excerption from WTP
specs. (WAP-224-WTP-20010710-a.pdf) :
" The missing packets are re-transmitted with the original Packet Sequence
Numbers. When the sender has re-transmitted the requ
Title: RE: SAR
Hi Damir,
According to the SAR specification, it says
the Acknowledgement is sent when the GTR is ON. When the TTR is ON, it doesn't
send an Ack, instead the Result_Response is sent. But if there're missing
packets, a Nack is sent even if it's a TTR packet.
I'm not sure
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
Behalf Of [EMAIL PROTECTED]
Sent: 6. prosinac 2002 21:26
To: Igor Ivoilov; [EMAIL PROTECTED]
Cc: kannel-mailing-list
Subject: Re: SAR
Hi Damir/Igor,
As you have seen, my implementation is done based on State Machine
Title: RE: SAR
Hi
Igor.
We are
experimenting witha wap stack.
That's
probably the reason ofunexpected behaviour.
Anyway, wap gateway should accept up to 256 packets in a group (or more
with ESAR).
Damir
S
-Original Message-From: Igor Ivoilov
[mailto:[EMAIL PROTECTED
Title: RE: SAR
Hi Damir,
I checked your log dump. As I can see, the SAR part
has successfully worked. Igor is right, your device has sent more than 6 packets
in one group and from that 6had failed, and the NACK was sent sucessfully
with the missing PDU Numbers.
The problem has occured
Title: RE: SAR
Hi
Denzel
Here
is the wapbox.log (I already sent it to Igor).
I hope
it helps.
bye
Damir
-Original Message-From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]Sent: 7. prosinac 2002 1:32To:
[EMAIL PROTECTED]; 'kannel-mailing-list'Cc: 'Igor
Ivoilov'Subject
Title: RE: SAR
Hi to
all.
Here
is what Ifound:
My
kannel really received malformed PDU (PDU type == unknown). I can see that from
my ethereal log. I don't know how it happened. Probably my wap client is not
working properly.
Anyway, it seems that kannel is not ready to handle
Title: RE: SAR
Hi Damir,
You're right, this thing is not implemented,
but the implementation is coming soon
Igor
-Original Message-
From: Damir Salantic [mailto:[EMAIL PROTECTED]]
Sent: Thursday, December 05, 2002 12:06 PM
To: [EMAIL PROTECTED]
Subject: SAR
Hi to all
Title: RE: SAR
Hi Damir/Igor,
As you have seen, my implementation is done based
on State Machine in WTP Response Layer. Also to my knowledge, I implemented all
the functionalities in SAR (Segmentation/Re-Assembly/NACK/ACK).
One thing I like to ask from Igor is is there any
efficiency
Hi - the SAR patch applied to CVS works nice with smaller files, but
with
bigger files it segfaults.
how big was the object and what kind of object?! You should also
supply us with more information regarding the phone, even while this
may not be that crussial.
8k mms message (with nothing
Title: RE: SAR patch and segfaults
Hello Matias,
Could you send what caused the seg fault using my wap proxy at 217.27.32.21 ?
Crash happened at the 1st or the 4th packet, so it does not depend on file size.
I have tested upload/download up to 100K, and did now see anything strange.
Before
8k mms message (with nothing more than a picture and the SMIL of course)
with a nokia 7650 to kannel.
hmmm, we used to send and receive MMS via the 7650 up to 130 kb
successfully. Strange things happen here...
So you used Kannel as WAP gateway to talk to an MMS Server right?!
Does it break in
Title: RE: SAR
Hi Denzel,
Nack reaction was not implemented in early version of sar.patch. But version that's come to cvs has this feature.
Did you experience nack problems with this version?
Igor
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent
You once promissed :) to send your updated SAR patch to the Kannel
mailing list. I tried to find this email on the list but couldn't find it.
Could you send your latest version to the list? Possible with
your findings like quality, missing features, working phones.
Alternatively I can offer
[EMAIL PROTECTED] wrote:
Hello Dave,
You once promissed :) to send your updated SAR patch to the Kannel
mailing list. I tried to find this email on the list but couldn't find it.
Could you send your latest version to the list? Possible with
your findings like quality, missing features,
Can I get information about SAR for kannel WAPgw.
There is exists at least 1 SAR implementation (can be found on the list
as patch).
I think Kannel must support SAR. So why this patch don't applied to CVS.
How it can be quicken? If there is another SAR implementation
(I heard about it, but
Title: RE: SAR Patch for Kannel
Hi list,
I have updated the patch to be applicable to current version of gw
Also reaction on nack is now implemented. (ESAR - not yet)
Attached patch is the next version of SAR-cumulative
I never saw problems described by Dave, and our mms server is working
A patch has already been posted. I had to modify it slightly to apply it to a CVS
checkout. It will work for midlet dl with a nokia 7650. However, SAR doesn't work yet
for TR-invoke type messages, so MMS is no go.
I'll post my modified patch when I get home.
Dave
-- original message --
Title: RE: SAR Functionality.
Hello All
I want to have a clarification,
1 What is SAR functionality?
Segmentation and reassembly (WAP-224 from http://www.wapforum.org/what/technical.htm)
2 The kannel gateway we have downloaded does it support SAR
functionality.
No
3 we are supposed
Hello Maria, Denzel and Mike.
Is the development for SAR going on?
I need to make a statement to the higher management
telling them how much is already supported and
going to be supported with Kannel ;))
Best Regards
Anu
-Original Message-
From: Mike [mailto:[EMAIL PROTECTED]]
Sent:
SAR is described in the WTP specs.
Stipe
[EMAIL PROTECTED]
---
Wapme Systems AG
Vogelsanger Weg 80
40470 Düsseldorf
Tel: +49-211-74845-0
Fax: +49-211-74845-299
E-Mail: [EMAIL PROTECTED]
Internet: http://www.wapme-systems.de
does this mean Kannel now supports SAR..
no, this only means that flaged SAR invoke requests are answered by
non-SARed packets to enable at least normal traffic to newer phones.
Stipe
[EMAIL PROTECTED]
---
Wapme Systems AG
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