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To pand or not to pand? That is my question.



I travel a lot (frankly, to much in fact). Since I don't really know where I will be from one day to the next, a dependable internet connection is not always available, if you don't bring your own.

That's why I carry a Samsung Blackjack II (SGH-i617) running Windows Mobile 6.1. I set up DKMS (Dynamic Kernel Module Support) and installed Synce-lite-rndis. This way I can connect to Internet Connection Sharing through my Fedora rndis0 network interface and share the connection via USB. This works great for general surfing and emailing. However, some larger bandwidth transactions such downloads or email attachment stall out.

I think it is important that I mention, this stalling has NOT once occurred when connected to a Microsoft Windows system.

The minimum MTU (Maximum Transmission Unit) and MRU (Maximum Receive Unit) suggested by the RNDIS specification is 8064. The current FC9 and FC10 kernnels (and I suspect other distributions, as well) support maximum MTUs and/or MRUs of 8050.

I am currently operating under the theory that this difference of 14 is either the root of my problem or a contributing factor.

As a means to test my theory, I thought I would attempt an ICS connection over Bluetooth since the suggested MTUs and MRUs are (if I remember correctly) 1691 according to Bluetooth PAN (Personal Area Network) specifications.

I have previously connected to PANs before using /usr/bin/pand to establish the connection once the devices are paired and Linux network interfaces are created. The pand binary was previously provided by the bluez-utils RPM.

i am currently running bluez-utils-3.35-5.fc9.i386. /usr/bin/pand is not insalled on my system. If I run:

   # yum provides */pand

The following results are provided:

bluez-utils-3.35-3.fc9.i386 : Bluetooth utilities
Matched from:
Filename    : /etc/rc.d/init.d/pand
Filename    : /etc/sysconfig/pand



bluez-utils-3.30-2.fc9.i386 : Bluetooth utilities
Matched from:
Filename    : /etc/sysconfig/pand
Filename    : /etc/rc.d/init.d/pand
Filename    : /usr/bin/pand



bluez-utils-3.35-5.fc9.i386 : Bluetooth utilities
Matched from:
Filename    : /etc/rc.d/init.d/pand
Filename    : /etc/sysconfig/pand



bluez-utils-3.35-5.fc9.i386 : Bluetooth utilities
Matched from:
Filename    : /etc/rc.d/init.d/pand
Filename    : /etc/sysconfig/pand

Pand is in bluez-utils-3.30-2.fc9.i386. However, it is not in bluez-utils-3.35-5.fc9.i386. This would indicate to me that pand is no longer in FC9. I know for a while it had disappeared from FC10 but I understand has since returned.

So, is pand being depreciated or is there a problem with the bluez-utils-3.35-5.fc9.i386 RPM.

If pand is in fact being depreciated, can anybody tell me what its replacement is?

If there is a problem with the bluez-utils-3.35-5.fc9.i386 RPM, who should be notified and what is the best way to report this issue?

Thanks,


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