bwtestserver receives unsupported SCMP message and fails upon dispatcher error

[hausheer]

bwtestserver receives unsupported SCMP message and fails upon dispatcher error.
$ go run bwtestserver.go -s 17-ffaa:1:1a,[127.0.0.1]:30100
INFO[07-17|04:31:36] Started id=e7beb8e6 goroutine=dispatcher_bck
INFO[07-17|04:31:36] Registered with dispatcher ia=17-ffaa:1:1a host=127.0.0.1 port=30100 Received request: 17-ffaa:1:4c,[127.0.0.1]:30102
INFO[07-17|04:31:51] Registered with dispatcher ia=17-ffaa:1:1a host=127.0.0.1 port=30101
EROR[07-17|04:31:53] Unable to find path src=17-ffaa:1:1a dst=17-ffaa:1:4c code="SCIOND timed out while requesting paths"
Received request: 17-ffaa:1:4c,[127.0.0.1]:30102
A bwtest is already ongoing
error, clientCCAddrStr == currentBwtest
Received request: 17-ffaa:1:4c,[127.0.0.1]:30102
A bwtest is already ongoing
error, clientCCAddrStr == currentBwtest
WARN[07-17|04:31:53] Received unsupported SCMP message class=PATH(3) type=3
the last warning is repeated 11 times and finally, bwtestserver fails with the following error:
2018-07-17T04:31:55.439+0200 [CRIT] Fatal error. Exiting. err=
> Dispatcher error
> Dispatcher write error
> Error writing to UNIX socket
> write unix @->/run/shm/dispatcher/default.sock: use of closed network connection
exit status 1