Re: applet and wireless scan
We can possibly tweak this, since drivers are better these days than they used to be. The 6 minute interval was chosen a fairly long time ago. Great! Scanned signal strength reported from drivers is still not reliable, but is getting a lot better. NM cannot rely on signal strength for doing stuff like switching access points or roaming yet. Drivers should report signal _quality_ in a 0 - 100% range, they are free to do whatever they wish with the RSSI/dBm. I'm not sure I did understand: nm uses signal quality (the one reported in 0/100) because signal level is not accurate. But, which is the difference from quality and level? and why with a signal quality of 27/100 and a signal level of -83dB my connection can't be established? I mean, 27% is not a low value... What a user is expecting is that he can connect to it, but the speed will not be hi! instead I was _never_ able to connect to an AP with level lower than -80dB... Regarding the applet scan results I did some tests. I did a boot with wireless disabled, than a login, then I enabled wireless and clicked over the applet. I had to wait 1 minute and a half at least, to show the results! definitely not 10 seconds as I should expect. And if the list is open the results found are not shown (I need to close and open the list again). Maybe this is hard to implement but it is a great feature :D - Nicolò ___ L'email della prossima generazione? Puoi averla con la nuova Yahoo! Mail: http://it.docs.yahoo.com/nowyoucan.html ___ NetworkManager-list mailing list NetworkManager-list@gnome.org http://mail.gnome.org/mailman/listinfo/networkmanager-list
Re: nm-openswan
On Thu, 2007-03-08 at 08:32 +0100, Soren Hansen wrote: On Wed, Mar 07, 2007 at 09:08:47PM -0500, steve wrote: Does anyone have need for this type of plugin, or is this software only useful for me? It could definitely be useful, please share it! +1 Dan ___ NetworkManager-list mailing list NetworkManager-list@gnome.org http://mail.gnome.org/mailman/listinfo/networkmanager-list
Re: applet and wireless scan
quality is a subjective value that usually includes things like TX retries, decryption errors, and other connection information in addition to signal strength. You can have a fairly high signal-to-noise ratio but still have an overloaded radio channel with lots of collisions, which means your transfer rates and latencies will be a lot worse than a less-heavily loaded channel with a lower SNR. so why does the applet refer to quality (which is a subjective value as you told me) and nothing else? I'm thinking of an unexperienced user that sees the bar at 30%, but doesn't get his connection up... He would surely think that nm is not a good product... Moreover no messages are shown to tell him that the noise is too heavy to bring the connection up I'd like to avoid cramming too much functionality into the applet itself. NM exports a D-Bus API that any program can use to query and set network status. More specific uses should probably have separate tools to do what they want rather than extending the applet. But in this way the user always sees old scan results! the ones from the previous click! I really think that this is an issue... I would prefer for instance that when I click a 5-10 seconds scan is done before popping up the list with a scanning libnotify message with timeout, to inform the user that those seconds are not wasted. Anyway again. In my nm the scan is not done when I click on the applet, the only way to have updated results is to wait for that too long 2 minutes! I'm using ubuntu feisty, network-manager 0.6.4 Thank you Dan. ___ L'email della prossima generazione? Puoi averla con la nuova Yahoo! Mail: http://it.docs.yahoo.com/nowyoucan.html ___ NetworkManager-list mailing list NetworkManager-list@gnome.org http://mail.gnome.org/mailman/listinfo/networkmanager-list
Re: applet and wireless scan
On Thu, 2007-03-08 at 15:17 +, yelo_3 wrote: quality is a subjective value that usually includes things like TX retries, decryption errors, and other connection information in addition to signal strength. You can have a fairly high signal-to-noise ratio but still have an overloaded radio channel with lots of collisions, which means your transfer rates and latencies will be a lot worse than a less-heavily loaded channel with a lower SNR. so why does the applet refer to quality (which is a subjective value as you told me) and nothing else? I'm thinking of an unexperienced user that sees the bar at 30%, but doesn't get his connection up... He would surely think that nm is not a good product... Moreover no messages are shown to tell him that the noise is too heavy to bring the connection up That's almost certainly a driver issue. If the driver is saying that quality of the AP is 30%, but you cannot connect, then the driver is wrong. The driver should be factoring all necessary information into the quality measurement. I'd like to avoid cramming too much functionality into the applet itself. NM exports a D-Bus API that any program can use to query and set network status. More specific uses should probably have separate tools to do what they want rather than extending the applet. But in this way the user always sees old scan results! the ones from the previous click! I really think that this is an issue... I would prefer for instance that when I click a 5-10 seconds scan is done before popping up the list with a scanning libnotify message with timeout, to inform the user that those seconds are not wasted. An issue here is that a scan is technically a DoS on the card. If you have an existing connection, you should not be able to repeatedly trigger scans. So no matter what, you should never be able to immediately trigger more than one scan if you are not root. Dan Anyway again. In my nm the scan is not done when I click on the applet, the only way to have updated results is to wait for that too long 2 minutes! I'm using ubuntu feisty, network-manager 0.6.4 Thank you Dan. ___ L'email della prossima generazione? Puoi averla con la nuova Yahoo! Mail: http://it.docs.yahoo.com/nowyoucan.html ___ NetworkManager-list mailing list NetworkManager-list@gnome.org http://mail.gnome.org/mailman/listinfo/networkmanager-list ___ NetworkManager-list mailing list NetworkManager-list@gnome.org http://mail.gnome.org/mailman/listinfo/networkmanager-list
Re: applet and wireless scan
That's almost certainly a driver issue. If the driver is saying that quality of the AP is 30%, but you cannot connect, then the driver is wrong. The driver should be factoring all necessary information into the quality measurement. I will post a bug to ipw2200 tracer, thank you for the suggestion! An issue here is that a scan is technically a DoS on the card. If you have an existing connection, you should not be able to repeatedly trigger scans. So no matter what, you should never be able to immediately trigger more than one scan if you are not root. quite wired that the scan is a DoS! I didn't understand why more than one scan should be triggered, to have an up-to-date list after one click - Nicolò ___ L'email della prossima generazione? Puoi averla con la nuova Yahoo! Mail: http://it.docs.yahoo.com/nowyoucan.html ___ NetworkManager-list mailing list NetworkManager-list@gnome.org http://mail.gnome.org/mailman/listinfo/networkmanager-list
Re: applet and wireless scan
On Thu, 2007-03-08 at 19:40 +, yelo_3 wrote: That's almost certainly a driver issue. If the driver is saying that quality of the AP is 30%, but you cannot connect, then the driver is wrong. The driver should be factoring all necessary information into the quality measurement. I will post a bug to ipw2200 tracer, thank you for the suggestion! An issue here is that a scan is technically a DoS on the card. If you have an existing connection, you should not be able to repeatedly trigger scans. So no matter what, you should never be able to immediately trigger more than one scan if you are not root. quite wired that the scan is a DoS! I didn't understand why more than one scan should be triggered, to have an up-to-date list after one click That's not the point. If you do a steady click-click-click on the applet, that should not trigger a new scan each click. At best, you'd click, NM would scan, and if you clicked again within 5 or 10 seconds you're out of luck. So you'll never be able to get instantaneous scans _every_ time you click on the applet, because that's a denial of service. Dan ___ NetworkManager-list mailing list NetworkManager-list@gnome.org http://mail.gnome.org/mailman/listinfo/networkmanager-list
Re: applet and wireless scan
understood. how much time should pass between the two clicks to be considered not a dos? I truely cannot realize if the scan is done only the first time of a series of clicks or the scan-when-click feature has been disabled because of this reason ___ L'email della prossima generazione? Puoi averla con la nuova Yahoo! Mail: http://it.docs.yahoo.com/nowyoucan.html ___ NetworkManager-list mailing list NetworkManager-list@gnome.org http://mail.gnome.org/mailman/listinfo/networkmanager-list
