Hello,
Im using the batmand- experimental and have some problems with routing. First I like to know the meaning of all the fields of the debug level prints and how they are determined. It would be great If you can give a more detailed information when to use the extended options and what they do with batmand. For instance, why should I change the window size (seen in Graz experiment).
My setup is the following. I have a laptop (linux debian) on a table. under the table I have a WRT54GS about 50cm below. A second router WRT54GL is places on the top of a cupboard which is about 1m higher than the laptop and about 3 m away. The laptop is offering a gatway.
Table (wrt B 10.12.10.1) (laptop 10.12.0.1) ########### (wrt A 10.12.10.17) # cupbord ###
laptop ------------ wrt A | | wrt B---------------+
My problem is that the connection from the laptop to B is bad (ssh,http connection). batman setups the routes so each device has a direct connection to the others. OLSR has detected this and does not use the direct connection between laptop and wrt B. It creates an routing entry to route over wrt A in laptop and wrt B. This results in a fast and better connection.
laptop wrt A | | wrt B---------------+
My problem also causes that the wrt B looses the gatway (laptop) and removes the default routing entry. I have added some traces of the three devices. All devices stay directly connected to each other. After network start wrt B still shows the gatway of the laptop (over the bad connection). Later the gateway will vanish and come back only for a short time before vanishing again.
LAPTOP: ----------- batmand -s 10.12.0.1 -g 1024/200 --no-unreachable-rule --no-throw-rules --no-prio-rules wlan0 bbs /t 1 /i bbc /t 1 /i" B.A.T.M.A.N. 0.3-exp, MainIF/IP: wlan0 10.12.0.1, WindSize: 128, BLT: 2, OGI: 1000, UT: 0d 0h 0m Originator viaIF Router (brc rcvd lseq lvld) [ viaIF l2q lq nlq].. alternatives... 10.12.10.1 wlan0 10.12.10.1 ( 46 47 217 0) [ wlan0 40 48 106] 10.12.10.17 ( 1) 10.12.10.17 wlan0 10.12.10.17 ( 47 48 239 0) [ wlan0 44 49 114] 10.12.10.1 ( 1)
WRT A --------- batmand --no-unreachable-rule --no-throw-rules --no-prio-rules -r 1 eth1 B.A.T.M.A.N. 0.3-exp, MainIF/IP: eth1 10.12.10.17, WindSize: 128, BLT: 2, OGI: 1000, UT: 0d 0h 3m Originator viaIF Router (brc rcvd lseq lvld) [ viaIF l2q lq nlq].. alternatives... 10.12.0.1 eth1 10.12.0.1 ( 7 7 7 0) [ eth1 119 7 128] 10.12.10.1 ( 0) 10.12.10.1 eth1 10.12.10.1 (125 126 176 0) [ eth1 115 126 116] 10.12.0.1 ( 1) Gateway Router (#/128) => 10.12.0.1 10.12.0.1 (110), gw_class 33 - 1024KBit/256KBit, reliability: 1
WRT B --------- batmand --no-unreachable-rule --no-throw-rules --no-prio-rules -r 1 eth1 B.A.T.M.A.N. 0.3-exp, MainIF/IP: eth1 10.12.10.1, WindSize: 128, BLT: 2, OGI: 1000, UT: 0d 0h 3m Originator viaIF Router (brc rcvd lseq lvld) [ viaIF l2q lq nlq].. alternatives... 10.12.0.1 eth1 10.12.0.1 ( 23 23 23 0) [ eth1 119 22 128] 10.12.10.17 ( 0) 10.12.10.17 eth1 10.12.10.17 (113 124 213 1) [ eth1 120 113 128] 10.12.0.1 ( 11) Gateway Router (#/128) => 10.12.0.1 10.12.0.1 ( 82), gw_class 33 - 1024KBit/256KBit, reliability: 1
################## after a while... LAPTOP: ------------ B.A.T.M.A.N. 0.3-exp, MainIF/IP: wlan0 10.12.0.1, WindSize: 128, BLT: 2, OGI: 1000, UT: 0d 0h55m Originator viaIF Router (brc rcvd lseq lvld) [ viaIF l2q lq nlq].. alternatives... 10.12.10.1 wlan0 10.12.10.1 (127 127 3503 0) [ wlan0 107 127 107] 10.12.10.17 ( 0) 10.12.10.17 wlan0 10.12.10.17 (128 128 3532 0) [ wlan0 124 128 124] 10.12.10.1 ( 0)
WRT A --------- B.A.T.M.A.N. 0.3-exp, MainIF/IP: eth1 10.12.10.17, WindSize: 128, BLT: 2, OGI: 1000, UT: 0d 0h58m Originator viaIF Router (brc rcvd lseq lvld) [ viaIF l2q lq nlq].. alternatives... 10.12.0.1 eth1 10.12.0.1 (125 126 3301 0) [ eth1 123 125 125] 10.12.10.1 ( 1) 10.12.10.1 eth1 10.12.10.1 (126 128 3470 1) [ eth1 111 128 111] 10.12.0.1 ( 2)
Gateway Router (#/128) => 10.12.0.1 10.12.0.1 (125), gw_class 33 - 1024KBit/256KBit, reliability: 1
WRT B --------- B.A.T.M.A.N. 0.3-exp, MainIF/IP: eth1 10.12.10.1, WindSize: 128, BLT: 2, OGI: 1000, UT: 0d 0h57m Originator viaIF Router (brc rcvd lseq lvld) [ viaIF l2q lq nlq].. alternatives... 10.12.0.1 eth1 10.12.0.1 (108 118 3264 0) [ eth1 123 108 128] 10.12.10.17 ( 10) 10.12.10.17 eth1 10.12.10.17 (114 121 3461 0) [ eth1 123 114 128] 10.12.0.1 ( 7)
Gateway Router (#/128) 10.12.0.1 10.12.0.1 (109), gw_class 33 - 1024KBit/256KBit, reliability: 6
################################################################################## still a little later LAPTOP: ---------- B.A.T.M.A.N. 0.3-exp, MainIF/IP: wlan0 10.12.0.1, WindSize: 128, BLT: 2, OGI: 1000, UT: 0d 1h11m Originator viaIF Router (brc rcvd lseq lvld) [ viaIF l2q lq nlq].. alternatives... 10.12.10.1 wlan0 10.12.10.1 (124 128 4411 0) [ wlan0 107 128 107] 10.12.10.17 ( 4) 10.12.10.17 wlan0 10.12.10.17 (127 127 4441 0) [ wlan0 121 128 121] 10.12.10.1 ( 0)
WRT A --------- B.A.T.M.A.N. 0.3-exp, MainIF/IP: eth1 10.12.10.17, WindSize: 128, BLT: 2, OGI: 1000, UT: 0d 1h15m Originator viaIF Router (brc rcvd lseq lvld) [ viaIF l2q lq nlq].. alternatives... 10.12.0.1 eth1 10.12.0.1 (123 125 4308 0) [ eth1 121 123 125] 10.12.10.1 ( 2) 10.12.10.1 eth1 10.12.10.1 (126 128 4477 0) [ eth1 111 128 111] 10.12.0.1 ( 2)
Gateway Router (#/128) => 10.12.0.1 10.12.0.1 (123), gw_class 33 - 1024KBit/256KBit, reliability: 1
WRT B --------- B.A.T.M.A.N. 0.3-exp, MainIF/IP: eth1 10.12.10.1, WindSize: 128, BLT: 2, OGI: 1000, UT: 0d 1h14m Originator viaIF Router (brc rcvd lseq lvld) [ viaIF l2q lq nlq].. alternatives... 10.12.0.1 eth1 10.12.0.1 (106 115 4277 0) [ eth1 123 106 128] 10.12.10.17 ( 9) 10.12.10.17 eth1 10.12.10.17 (117 122 4476 0) [ eth1 120 117 128] 10.12.0.1 ( 5)
Gateway Router (#/128) 10.12.0.1 10.12.0.1 (110), gw_class 33 - 1024KBit/256KBit, reliability: 8
Hey,
I am working on the documentation of experimental and on the experiences I made at the wcw in graz. sorry I just came back from there and need to keep up with some postponed work first.
YOu can have a look on the preliminary documentation https://www.open-mesh.net/batman/doc/BMX#debug-level-1-parameter to get an idea about the acronyms used in debug-level 1.
Please tell me if there is something you dont understand, so I can correct it before I make this url public.
On Donnerstag 20 September 2007, Freifunk Dresden wrote:
Hello,
Im using the batmand- experimental and have some problems with routing. First I like to know the meaning of all the fields of the debug level prints and how they are determined. It would be great If you can give a more detailed information when to use the extended options and what they do with batmand. For instance, why should I change the window size (seen in Graz experiment).
The window size defines the frame size or the number of recent OGMs over which statistics are made for the neighbor ranking.
So a smaller window-size results in a shorter time for the mesh to converge and find new routes if something has changed. However it will also cause more unnesssary route changes.
I know I am also late with that documentatioin, be patient... ciau, axel
My setup is the following. I have a laptop (linux debian) on a table. under the table I have a WRT54GS about 50cm below. A second router WRT54GL is places on the top of a cupboard which is about 1m higher than the laptop and about 3 m away. The laptop is offering a gatway.
Table(wrt B 10.12.10.1) (laptop 10.12.0.1) ########### (wrt A 10.12.10.17) # cupbord ###
laptop ------------ wrt A
wrt B---------------+
My problem is that the connection from the laptop to B is bad (ssh,http connection). batman setups the routes so each device has a direct connection to the others. OLSR has detected this and does not use the direct connection between laptop and wrt B. It creates an routing entry to route over wrt A in laptop and wrt B. This results in a fast and better connection.
laptop wrt A
wrt B---------------+
My problem also causes that the wrt B looses the gatway (laptop) and removes the default routing entry. I have added some traces of the three devices. All devices stay directly connected to each other. After network start wrt B still shows the gatway of the laptop (over the bad connection). Later the gateway will vanish and come back only for a short time before vanishing again.
LAPTOP:
batmand -s 10.12.0.1 -g 1024/200 --no-unreachable-rule --no-throw-rules --no-prio-rules wlan0 bbs /t 1 /i bbc /t 1 /i" B.A.T.M.A.N. 0.3-exp, MainIF/IP: wlan0 10.12.0.1, WindSize: 128, BLT: 2, OGI: 1000, UT: 0d 0h 0m Originator viaIF Router (brc rcvd lseq lvld) [ viaIF l2q lq nlq].. alternatives... 10.12.10.1 wlan0 10.12.10.1 ( 46 47 217 0) [ wlan0 40 48 106] 10.12.10.17 ( 1) 10.12.10.17 wlan0 10.12.10.17 ( 47 48 239 0) [ wlan0 44 49 114] 10.12.10.1 ( 1)
WRT A
batmand --no-unreachable-rule --no-throw-rules --no-prio-rules -r 1 eth1 B.A.T.M.A.N. 0.3-exp, MainIF/IP: eth1 10.12.10.17, WindSize: 128, BLT: 2, OGI: 1000, UT: 0d 0h 3m Originator viaIF Router (brc rcvd lseq lvld) [ viaIF l2q lq nlq].. alternatives... 10.12.0.1 eth1 10.12.0.1 ( 7 7 7 0) [ eth1 119 7 128] 10.12.10.1 ( 0) 10.12.10.1 eth1 10.12.10.1 (125 126 176 0) [ eth1 115 126 116] 10.12.0.1 ( 1) Gateway Router (#/128) => 10.12.0.1 10.12.0.1 (110), gw_class 33 - 1024KBit/256KBit, reliability: 1
WRT B
batmand --no-unreachable-rule --no-throw-rules --no-prio-rules -r 1 eth1 B.A.T.M.A.N. 0.3-exp, MainIF/IP: eth1 10.12.10.1, WindSize: 128, BLT: 2, OGI: 1000, UT: 0d 0h 3m Originator viaIF Router (brc rcvd lseq lvld) [ viaIF l2q lq nlq].. alternatives... 10.12.0.1 eth1 10.12.0.1 ( 23 23 23 0) [ eth1 119 22 128] 10.12.10.17 ( 0) 10.12.10.17 eth1 10.12.10.17 (113 124 213 1) [ eth1 120 113 128] 10.12.0.1 ( 11) Gateway Router (#/128) => 10.12.0.1 10.12.0.1 ( 82), gw_class 33 - 1024KBit/256KBit, reliability: 1
################## after a while... LAPTOP:
B.A.T.M.A.N. 0.3-exp, MainIF/IP: wlan0 10.12.0.1, WindSize: 128, BLT: 2, OGI: 1000, UT: 0d 0h55m Originator viaIF Router (brc rcvd lseq lvld) [ viaIF l2q lq nlq].. alternatives... 10.12.10.1 wlan0 10.12.10.1 (127 127 3503 0) [ wlan0 107 127 107] 10.12.10.17 ( 0) 10.12.10.17 wlan0 10.12.10.17 (128 128 3532 0) [ wlan0 124 128 124] 10.12.10.1 ( 0)
WRT A
B.A.T.M.A.N. 0.3-exp, MainIF/IP: eth1 10.12.10.17, WindSize: 128, BLT: 2, OGI: 1000, UT: 0d 0h58m Originator viaIF Router (brc rcvd lseq lvld) [ viaIF l2q lq nlq].. alternatives... 10.12.0.1 eth1 10.12.0.1 (125 126 3301 0) [ eth1 123 125 125] 10.12.10.1 ( 1) 10.12.10.1 eth1 10.12.10.1 (126 128 3470 1) [ eth1 111 128 111] 10.12.0.1 ( 2)
Gateway Router (#/128)=> 10.12.0.1 10.12.0.1 (125), gw_class 33 - 1024KBit/256KBit, reliability: 1
WRT B
B.A.T.M.A.N. 0.3-exp, MainIF/IP: eth1 10.12.10.1, WindSize: 128, BLT: 2, OGI: 1000, UT: 0d 0h57m Originator viaIF Router (brc rcvd lseq lvld) [ viaIF l2q lq nlq].. alternatives... 10.12.0.1 eth1 10.12.0.1 (108 118 3264 0) [ eth1 123 108 128] 10.12.10.17 ( 10) 10.12.10.17 eth1 10.12.10.17 (114 121 3461 0) [ eth1 123 114 128] 10.12.0.1 ( 7)
Gateway Router (#/128)10.12.0.1 10.12.0.1 (109), gw_class 33 - 1024KBit/256KBit, reliability: 6
########################################################################### ####### still a little later LAPTOP:
B.A.T.M.A.N. 0.3-exp, MainIF/IP: wlan0 10.12.0.1, WindSize: 128, BLT: 2, OGI: 1000, UT: 0d 1h11m Originator viaIF Router (brc rcvd lseq lvld) [ viaIF l2q lq nlq].. alternatives... 10.12.10.1 wlan0 10.12.10.1 (124 128 4411 0) [ wlan0 107 128 107] 10.12.10.17 ( 4) 10.12.10.17 wlan0 10.12.10.17 (127 127 4441 0) [ wlan0 121 128 121] 10.12.10.1 ( 0)
WRT A
B.A.T.M.A.N. 0.3-exp, MainIF/IP: eth1 10.12.10.17, WindSize: 128, BLT: 2, OGI: 1000, UT: 0d 1h15m Originator viaIF Router (brc rcvd lseq lvld) [ viaIF l2q lq nlq].. alternatives... 10.12.0.1 eth1 10.12.0.1 (123 125 4308 0) [ eth1 121 123 125] 10.12.10.1 ( 2) 10.12.10.1 eth1 10.12.10.1 (126 128 4477 0) [ eth1 111 128 111] 10.12.0.1 ( 2)
Gateway Router (#/128)=> 10.12.0.1 10.12.0.1 (123), gw_class 33 - 1024KBit/256KBit, reliability: 1
WRT B
B.A.T.M.A.N. 0.3-exp, MainIF/IP: eth1 10.12.10.1, WindSize: 128, BLT: 2, OGI: 1000, UT: 0d 1h14m Originator viaIF Router (brc rcvd lseq lvld) [ viaIF l2q lq nlq].. alternatives... 10.12.0.1 eth1 10.12.0.1 (106 115 4277 0) [ eth1 123 106 128] 10.12.10.17 ( 9) 10.12.10.17 eth1 10.12.10.17 (117 122 4476 0) [ eth1 120 117 128] 10.12.0.1 ( 5)
Gateway Router (#/128)10.12.0.1 10.12.0.1 (110), gw_class 33 - 1024KBit/256KBit, reliability: 8
B.A.T.M.A.N mailing list B.A.T.M.A.N@open-mesh.net https://list.open-mesh.net/mm/listinfo/b.a.t.m.a.n
Hi,
I shortly checked your writing and found some unclear points. - What is the difference (-d 1 ) of the viaIF and the viaIF of the optional info block?
- the nlq = l2q / l2: what is l2? - you compare the lq with the OLSR-ETX. But can you explain it without "OLSR-ETX", because I don't like to check the documentation of OLSR -bidirectional timeout: is the number given in seconds or sequence count difference or something other?
If haven't already planed, the options --dups-xxx --asymmetric-xxx and all that only have the blue bar needs more description and what influence they have within the batmand. Examples as you have offered by --window-size are very helpful.
Regards Stephan
Hi, first thanks for your input,
I shortly checked your writing and found some unclear points.
- What is the difference (-d 1 ) of the viaIF and the viaIF of
the optional info block?
I've tried to make this more concrete. http://open-mesh.net/batman/doc/BMX#debug-level-1-parameter critic is still welcome.
- the nlq = l2q / l2: what is l2?
Yes, that was a flaw, I meant lq NOT l2. Anyway I renamed the terms a little bit so that it now reads: NLQ = RTQ / LQ where RTQ should be referred as Round Trip Quality
- you compare the lq with the OLSR-ETX. But can you explain it without "OLSR-ETX", because I don't like to check the documentation of OLSR
done
-bidirectional timeout: is the number given in seconds or sequence count difference or something other?
in sequence number counts. I'll see to make this clearer as well.
If haven't already planed, the options --dups-xxx --asymmetric-xxx and all that only have the blue bar needs more description and what influence they have within the batmand. Examples as you have offered by --window-size are very helpful.
on its way...
ciao, axel
b.a.t.m.a.n@lists.open-mesh.org
-
Axel Neumann -
Freifunk Dresden