Hello
I’ll start with a few bullets
- I have a few systems with ConnectX-3 adapters connected to SX1012 switches. They’re running in 56Gbit to a DDN MediaScaler.
- A new client have been added, a windows 10 client. The first windows 10 client in this setup.
- Switch port config and also NIC config in windows is the same as one of the windows 7 hosts. Well, with the exception that the windows 10 client have a newer driver and hence some other/renamed options.
- This windows 10 client is capped at, what looks like, 10Gbit in the system. I’ve run multiple and parallel iPerf tests and have done comparisons with the other systems. Can’t get it to go faster and if anything this host should be faster than the win7 client since it’s newer and more modern.
To me it feels like there’s something I have missed in the somewhat newer driver in Windows 10. Have any one seen something similar?
Switch port config of NEW windows 10 host, m5-clipster02:
show interfaces ethernet 1/7
Eth1/7
Admin state: Enabled
Operational state: Up
Description: m5-clipster02_GPFS
Mac address: e4:1d:2d:39:52:f4
MTU: 9216 bytes(Maximum packet size 9238 bytes)
Fec: auto
Flow-control: receive on send on
Actual speed: 56 Gbps
Width reduction mode: disabled
Switchport mode: access
MAC learning mode: Enabled
Last clearing of “show interface” counters : 02:03:04
60 seconds ingress rate: 740016 bits/sec, 92502 bytes/sec, 659 packets/sec
60 seconds egress rate: 127499808 bits/sec, 15937476 bytes/sec, 1932 packets/sec
Rx
66792621 packets
66792141 unicast packets
267 multicast packets
213 broadcast packets
580396963241 bytes
0 error packets
0 discard packets
Tx
26885122 packets
26879548 unicast packets
4675 multicast packets
899 broadcast packets
21021660379 bytes
0 discard packets
show interfaces ethernet 1/9 transceiver
Port 1/9 state
identifier : QSFP+
cable/ module type : Passive copper, unequalized
ethernet speed and type: 56GigE
vendor : Mellanox
cable length : 4m
part number : MC2207126-004
revision : A3
serial number : MT1444VS02832
Switch port config of OLD windows 7 host, clipster_gpfs:
show interfaces ethernet 1/9
Eth1/9
Admin state: Enabled
Operational state: Up
Description: Clipster_GPFS
Mac address: e4:1d:2d:39:52:cf
MTU: 9216 bytes(Maximum packet size 9238 bytes)
Fec: auto
Flow-control: receive on send on
Actual speed: 56 Gbps
Width reduction mode: disabled
Switchport mode: access
MAC learning mode: Enabled
Last clearing of “show interface” counters : 02:04:42
60 seconds ingress rate: 496 bits/sec, 62 bytes/sec, 1 packets/sec
60 seconds egress rate: 864 bits/sec, 108 bytes/sec, 1 packets/sec
Rx
140469415 packets
140468154 unicast packets
314 multicast packets
947 broadcast packets
1144807131028 bytes
0 error packets
0 discard packets
Tx
54283116 packets
54277639 unicast packets
4760 multicast packets
717 broadcast packets
207471985950 bytes
0 discard packets
show interfaces ethernet 1/7 transceiver
Port 1/7 state
identifier : QSFP+
cable/ module type : Passive copper, unequalized
ethernet speed and type: 56GigE
vendor : Mellanox
cable length : 4m
part number : MC2207126-004
revision : A3
serial number : MT1436VS02630
Cheers and thanks.