Jag lovade ju återkomma med om hur det funkar.
Har nu testat koppla en 2 meters fiber direkt mellan en windows 10 dator och en dator med Arch Linux. testar lite med iperf och får följande när jag ansluter från windows 10 till Linux:
ronny@r1arch ~]$ iperf -s
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 10.1.1.2 port 5001 connected with 10.1.1.1 port 50062
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-10.0 sec 8.04 GBytes 6.90 Gbits/sec
[ 5] local 10.1.1.2 port 5001 connected with 10.1.1.1 port 50065
[ 5] 0.0-10.0 sec 8.41 GBytes 7.22 Gbits/sec
^C[ronny@r1arch ~]$ iperf -c 10.1.1.1
^Cconnect failed: Connection timed out
[ronny@r1arch ~]$ iperf -c 10.1.1.1
------------------------------------------------------------
Client connecting to 10.1.1.1, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 10.1.1.2 port 47882 connected with 10.1.1.1 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 5.50 GBytes 4.72 Gbits/sec
[ronny@r1arch ~]$ iperf -c 10.1.1.1
------------------------------------------------------------
Client connecting to 10.1.1.1, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 10.1.1.2 port 47884 connected with 10.1.1.1 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 5.59 GBytes 4.80 Gbits/sec
[ronny@r1arch ~]$ iperf -c 10.1.1.1
------------------------------------------------------------
Client connecting to 10.1.1.1, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 10.1.1.2 port 47886 connected with 10.1.1.1 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 5.61 GBytes 4.82 Gbits/sec
[ronny@r1arch ~]$
Jag får alltså runt 7 Gbit/s åt ena hållet och knappt 5 Gbit/s åt andra hållet men då har jag inte aktiverat jumbo frames. Har pluppat i korten i PCIe x4 portar i båda datorerna (egentligen klarar korten PCIe x8 men jag hade inga sådana lediga). Var tvungen att stänga av Windows brandvägg innan jag lyckades köra iperf som server i windows 10.
Testade aktivera jumbo frames. Så jag ställde in 9216 som jumbo packet i windows 10 drivrutin och mtu=9000 på linux.
[ronny@r1arch ~]$ sudo ip link set eth1 mtu 9000
[sudo] lösenord för ronny:
[ronny@r1arch ~]$ ip link show | grep mtu
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc mq state UP mode DEFAULT group default qlen 1000
[ronny@r1arch ~]$ iperf -s
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[ 4] local 10.1.1.2 port 5001 connected with 10.1.1.1 port 50214
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-10.0 sec 11.1 GBytes 9.53 Gbits/sec
[ 5] local 10.1.1.2 port 5001 connected with 10.1.1.1 port 50218
[ 5] 0.0-10.0 sec 10.9 GBytes 9.37 Gbits/sec
[ 4] local 10.1.1.2 port 5001 connected with 10.1.1.1 port 50219
[ 4] 0.0-10.0 sec 11.0 GBytes 9.43 Gbits/sec
[ 5] local 10.1.1.2 port 5001 connected with 10.1.1.1 port 50222
[ 5] 0.0-10.0 sec 10.9 GBytes 9.35 Gbits/sec
[ 4] local 10.1.1.2 port 5001 connected with 10.1.1.1 port 50224
[ 4] 0.0-10.0 sec 10.8 GBytes 9.25 Gbits/sec
[ 5] local 10.1.1.2 port 5001 connected with 10.1.1.1 port 50227
[ 5] 0.0-10.0 sec 11.1 GBytes 9.56 Gbits/sec
^C[ronny@r1arch ~]iperf -c 10.1.1.1
------------------------------------------------------------
Client connecting to 10.1.1.1, TCP port 5001
TCP window size: 325 KByte (default)
------------------------------------------------------------
[ 3] local 10.1.1.2 port 48506 connected with 10.1.1.1 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 10.9 GBytes 9.40 Gbits/sec
[ronny@r1arch ~]$ iperf -c 10.1.1.1
------------------------------------------------------------
Client connecting to 10.1.1.1, TCP port 5001
TCP window size: 325 KByte (default)
------------------------------------------------------------
[ 3] local 10.1.1.2 port 48508 connected with 10.1.1.1 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 10.8 GBytes 9.27 Gbits/sec
[ronny@r1arch ~]$ iperf -c 10.1.1.1
------------------------------------------------------------
Client connecting to 10.1.1.1, TCP port 5001
TCP window size: 325 KByte (default)
------------------------------------------------------------
[ 3] local 10.1.1.2 port 48510 connected with 10.1.1.1 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 10.9 GBytes 9.35 Gbits/sec
[ronny@r1arch ~]$
Det var bättre!
9,3 - 9,5 Gbit/s
Det får man väl vara nöjd med. Kanske hade blivit lite bättre med 8x PCIe men det är ändå tillräckligt bra.
Nu när jag vet att nätverkskorten funkar på mina klientdatorer så blir nästa steg att koppla fibern i slinga fram och tillbaka till servern så vet jag om fiberna jag dragit genom huset fungerar. Slutligen får jag stoppa i nätverkskort i servern och köra det skarpt.
