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[Bug?] 1.0.8.19 Two IP addresses set when WiFi and mobile data active

asked 2014-07-15 07:59:34 +0300

zlatko gravatar image

updated 2014-07-22 10:04:52 +0300

jiit gravatar image

Since an updated connectivity stack was introduced in 1.0.8.19 I notice the device is keeping 2 connections simultaneously when WiFi and 2G/3G are both active. When checking there are IP addresses setup fpr wlan0 and rmnet0. Actually the WiFi connection is used when needed. This will probably have some influence on energy consumption.

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answered 2014-07-15 08:44:33 +0300

tigeli gravatar image

updated 2014-07-15 08:48:14 +0300

Not really a bug as this can happen when device asks for a-gps data while wlan is connected. (Also this behaviour has been in place since 1.0.5.16.)

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I have seen it in 1.0.7.18 hotfix. Does it impact the energy consumption in negative way?

zlatko ( 2014-07-15 08:51:26 +0300 )edit

Yes and no, eg. Jolla supports Fast Dormancy with UMTS which will make it to physically disconnect mobile data connection if it's not actively transferring data. Also, normally mobile data will be disconnected when wlan gets connected but of course it will use more energy when they are both connected vs. only other is connected.

tigeli ( 2014-07-15 09:04:55 +0300 )edit
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Asked: 2014-07-15 07:59:34 +0300

Seen: 212 times

Last updated: Jul 15 '14