Return-Path: Message-ID: Date: Sun, 22 Apr 2007 19:36:10 -0300 From: "Loreno Oliveira" To: "BlueZ users" In-Reply-To: <462BDFE9.7010001@gmail.com> MIME-Version: 1.0 References: <12a679470704221147v13b00925vf41dead8dc98ed24@mail.gmail.com> <462BDFE9.7010001@gmail.com> Subject: Re: [Bluez-users] Max number of RFCOMM connections? Reply-To: BlueZ users List-Id: BlueZ users List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1965298496==" Sender: bluez-users-bounces@lists.sourceforge.net Errors-To: bluez-users-bounces@lists.sourceforge.net --===============1965298496== Content-Type: multipart/alternative; boundary="----=_Part_128470_91292.1177281370166" ------=_Part_128470_91292.1177281370166 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline I totally agree with you, but I thought the question was about the maximum number of RFCOMM connections. When I said 30 I considered scenarios where there could be more than one RFCOMM connection between the same two ACL-connected devices... Actually, I have never implemented such scenario. I agree I am wrong if bluetooth doesn't allow to establish such a set of simultaneous connections... Loreno On 4/22/07, Manuel Naranjo wrote: > > I'm sorry, that's not right. There's a maximum of 7 ACL connections per > bluetooth dongle, according to the specs of the BT SIG. And RFCOMM is > implemented over ACL, so you have a maximum of 7 simultaneous rfcomm > connections. > > I believe the maximum number of allowed connections relates to the > > number of ports available to connect to using rfcomm. > > Thus, my guess is 30. > > > > http://people.csail.mit.edu/albert/bluez-intro/x92.html#rfcomm-and-tcp > > > > Regards, > > > > Loreno > > > > > > Hi all, can someone please enlight me on the following? > > > > What is the maximum number of RFCOMM connections for each > > bluetooth dongle with BlueZ? > > > > Thanks in advance > > > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > _______________________________________________ > Bluez-users mailing list > Bluez-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bluez-users > ------=_Part_128470_91292.1177281370166 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline I totally agree with you, but I thought the question was about the maximum number of RFCOMM connections.
When I said 30 I considered scenarios where there could be more than one RFCOMM connection between the same two ACL-connected devices...

Actually, I have never implemented such scenario. I agree I am wrong if bluetooth doesn't allow to establish such a set of simultaneous connections...

Loreno

On 4/22/07, Manuel Naranjo <naranjo.manuel@gmail.com> wrote:

I'm sorry, that's not right. There's a maximum of 7 ACL connections per
bluetooth dongle, according to the specs of the BT SIG. And RFCOMM is
implemented over ACL, so you have a maximum of 7 simultaneous rfcomm
connections.
> I believe the maximum number of allowed connections relates to the
> number of ports available to connect to using rfcomm.
> Thus, my guess is 30.
>
> http://people.csail.mit.edu/albert/bluez-intro/x92.html#rfcomm-and-tcp
>
> Regards,
>
> Loreno
>
>
>     Hi all, can someone please enlight me on the following?
>
>     What is the maximum number of RFCOMM connections for each
>     bluetooth dongle with BlueZ?
>
>     Thanks in advance
>

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