WiFi on Finnish VR InterCity train

And now for comparison, some quick tests of the open train wifi from around Lahti in a “working compartment” (seats 1–7, coach 1) of an InterCity 5 operated by VR in Finland. Feels quite decent. (Bicycle transport is also good on this train.)

WiFi junassa (VR) ja latenssi.

Access point

$ iwconfig

wls1      IEEE 802.11  ESSID:"VR-junaverkko"
          Mode:Managed  Frequency:2.412 GHz  Access Point: 68:99:CD:B9:30:10
          Bit Rate=104 Mb/s   Tx-Power=15 dBm
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=70/70  Signal level=-29 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:844   Missed beacon:0

$ uname -a
Linux x200s 4.10.8-200.fc25.x86_64 #1 SMP Fri Mar 31 13:20:22 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

Connection to IRC server

Good enough for SSH not to be disconnected, but over 15 % packet loss and 500 ms latency with quite some jitter (judging from StDev).

$ mtr -w -c 100 kapsi.fi
Start: Fri Apr 14 14:02:31 2017
HOST: x200s                             Loss%   Snt   Last   Avg  Best  Wrst StDev
  1.|-- gateway                            0.0%   100    6.7  41.3   2.8 419.0  78.9
  2.|-- 164.5.101.168                     14.0%   100  352.5 551.0  83.5 1144. 251.5
  3.|-- 10.25.0.0                         99.0%   100  917.7 917.7 917.7 917.7   0.0
  4.|-- 83.150.93.45                      54.0%   100  21042 21042 20240 22463 486.5
  5.|-- rtr1-te1-3.lau.hel.fi.nblnet.com  13.0%   100  939.9 742.0  67.9 1209. 272.3
  6.|-- rtr1-po4.ipo.esp.fi.nblnet.com     8.0%   100   42.9 195.6  25.2 986.7 216.5
  7.|-- rtr2-po3.pit.hel.fi.nblnet.com    12.0%   100  664.1 580.7 119.2 1408. 278.1
  8.|-- pertr2-be10.pit.hel.fi.nblnet.com  9.0%   100  932.1 726.0  90.2 1363. 300.8
  9.|-- crtr1-v1329.pit.hel.fi.nblnet.com 15.2%    99  863.8 697.7 110.4 1266. 275.4
 10.|-- kapsi.fi                          17.2%    99  633.7 555.1  65.2 1240. 306.8

HTTP connection

Server Software:		Apache
Server Hostname:		http://www.ripe.net
Server Port:		443
Document Path:		/
Document Length:		88455 bytes
Concurrency Level:		1
Time taken for tests:		94.474 seconds
Complete requests:		25
Failed requests:		0
Total transferred:		2219825 bytes
HTML transferred:		2211375 bytes
Requests per second:		0.26
Transfer rate:		22.95 kb/s received
Connnection Times (ms)
	min	avg	max
Connect:	245	1142	2251
Processing:	617	2636	11159
Total:	862	3778	13410

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