Turris 1.1 - high CPU load and VLAN misconfig

Software SW help
1

Hi guys,
I am happy owner of Turris 1.1, however lately updates are causing me some troubles and now I run to one I am not able to solve by myself. My turris has high system load (4-6) although nothing special is running there (OpenVPN with one client, miniDLNA with approx 1400 video files and 0 clients currently connected). I guess that high system load is caused by some VLAN misconfig, because kernel log is full of errors like this:
[ 282.602140] br-lan: received packet on eth1 with own address as source address

I’ve checked Switch config in LuCI and there is only one VLAN configured all ports set to untagged.
Could anyone please point me what might be wrong?

Thank you in advance!

2

Hi,

maybe this resource will help you. https://www.turris.cz/doc/en/howto/vlan_settings_turris. At least you can use it for comparison with your configs.
I also have T1.1 with latest OS, switch config in defaults and I have no issues in LAN/switch/VLAN area. So I can serve you in case you need any other output for comparison with your situation.

3

Hi,
I’ve compared my config to the one on the link and everything seems to be in default. Could you please share me your /etc/config/network?

Thank you!

4

Here it is. Ouside IP info was replaced with word ‘removed’, but the rest was left intact. You can see that I have both tun and tap VPNs configured (and functional). But unfortunately, the rest of my config seems to be identical to defaults from the link above.

config interface 'loopback’
option ifname 'lo’
option proto 'static’
option ipaddr '127.0.0.1’
option netmask ‘255.0.0.0’

config globals 'globals’
option ula_prefix ‘fd4f:cc31:a3b0::/48’

config interface 'lan’
option ifname 'eth0 eth1 tap0’
option force_link '1’
option type 'bridge’
option proto 'static’
option netmask '255.255.255.0’
option ip6assign '60’
option ipaddr ‘192.168.1.254’

config interface 'wan’
option ifname 'eth2’
option proto 'static’
option ipaddr 'removed’
option netmask 'removed’
option gateway 'removed’
option type ‘bridge’

config interface 'wan6’
option ifname '@wan’
option proto ‘none’

config switch
option name 'switch0’
option reset '1’
option enable_vlan ‘1’

config switch_vlan
option device 'switch0’
option vlan '1’
option ports '0 1 2 3 4 ’

config switch_vlan
option device 'switch0’
option vlan '2’
option ports ‘5 6’

config interface 'vpn’
option ifname 'tun0’
option proto 'static’
option ipaddr '192.168.2.1’
option netmask '255.255.255.0’
option ip6assign ‘64’

5

Thank you!
This part did the trick:

config switch_vlan`
option device 'switch0'
option vlan '1'
option ports '0 1 2 3 4 '

config switch_vlan
option device 'switch0'
option vlan '2'
option ports '5 6'

I have no idea why, but it was configured with all ports in one vlan. Strange, I am 100% sure I haven’t touched this part of config yet.

Anyway thank you! Solved :slight_smile: