Hello,
Am 03.01.2013 um 02:57 schrieb Marek Lindner:
On Thursday, January 03, 2013 07:28:02 Jan Lühr wrote:
The client should use 6a:4b:93:de:00:84 as a gatway, since it provides much higher data rates - however, it is stuck at aa:31:0e:4a:0f:1d.
I have observed the same behavior.
That's quite frustrating. Can I debug, when and why batman-adv actually chooses as specific gateway?
Yes, you can. Enable the batman-adv debug log at compile and runtime. While retrieving the 'batman' log messages you should see something like: Adding route to gateway .. Changing route to gateway .. Found new gateway .. etc
Maybe you can post the result here ?
Ok, Let's give it a try:
=== Command Log a) Situation on node at beginng - just one gateway, the right one. Freifunk-b0487acb2d58:~# batctl gwl Gateway (#/255) Nexthop [outgoingIF]: gw_class ... [B.A.T.M.A.N. adv 2012.4.0, MainIF/MAC: wlan0-1/b2:48:7a:cb:2d:59 (bat0)] => 72:8b:06:40:61:2e (248) 72:8b:06:40:61:2e [ mesh-vpn]: 215 - 96MBit/96MBit
b) Enable gateway mode on the backup gateway root@fastd3:~# /usr/local/sbin/batctl gw server 1Mbit/1Mbit
Gateway-List is: Freifunk-b0487acb2d58:~# batctl gwl Gateway (#/255) Nexthop [outgoingIF]: gw_class ... [B.A.T.M.A.N. adv 2012.4.0, MainIF/MAC: wlan0-1/b2:48:7a:cb:2d:59 (bat0)] => 72:8b:06:40:61:2e (255) 72:8b:06:40:61:2e [ mesh-vpn]: 215 - 96MBit/96MBit aa:31:0e:4a:0f:1d (255) aa:31:0e:4a:0f:1d [ mesh-vpn]: 39 - 1024KBit/1024KBit
c) Disable regular gateway, force node to switch to backup kif:~# batctl gw_mode client
Gateway-List is: reifunk-b0487acb2d58:~# batctl gwl Gateway (#/255) Nexthop [outgoingIF]: gw_class ... [B.A.T.M.A.N. adv 2012.4.0, MainIF/MAC: wlan0-1/b2:48:7a:cb:2d:59 (bat0)] => aa:31:0e:4a:0f:1d (255) aa:31:0e:4a:0f:1d [ mesh-vpn]: 39 - 1024KBit/1024KBit
d) Re-enable regular gateway root@kif:~# /usr/local/sbin/batctl gw server 100Mbit/100Mbit
Gateway-List is Freifunk-b0487acb2d58:~# batctl gwl Gateway (#/255) Nexthop [outgoingIF]: gw_class ... [B.A.T.M.A.N. adv 2012.4.0, MainIF/MAC: wlan0-1/b2:48:7a:cb:2d:59 (bat0)] 72:8b:06:40:61:2e (254) 72:8b:06:40:61:2e [ mesh-vpn]: 215 - 96MBit/96MBit => aa:31:0e:4a:0f:1d (255) aa:31:0e:4a:0f:1d [ mesh-vpn]: 39 - 1024KBit/1024KBit
e) Wait some time
f) Stop Logging
=== End of command Log
=== Node log of that hour http://jluehr.de/batman-adv.log.gz
zgrep -i gateway batman-adv.log.gz [ 1022240] Gateway class of originator aa:31:0e:4a:0f:1d changed from 0 to 39 [ 1035100] Gateway class of originator 72:8b:06:40:61:2e changed from 215 to 0 [ 1035100] Gateway 72:8b:06:40:61:2e removed from gateway list [ 1035830] Changing route to gateway aa:31:0e:4a:0f:1d (gw_flags: 39, tq: 255) [ 1046020] Gateway class of originator 72:8b:06:40:61:2e changed from 0 to 215