Hello,
i'm trying to setup a nested lab on 2 physical host with ESXi 6.7 U1 installed. I've configured DVS and a dpg dedicated to Nested ESXi hosts.
To enable MAC learning for the specific dpg i've followed (thanks William):
https://www.virtuallyghetto.com/2018/04/native-mac-learning-in-vsphere-6-7-removes-the-need-for-prom...
Checking if it's enabled:
PS C:\Users\Administrator.LAB> Get-MacLearn -DVPortgroupName @("vds01 - vESXi-Trunk")
DVPortgroup : vds01 - vESXi-Trunk
MacLearning : True
NewAllowPromiscuous : False
NewForgedTransmits : True
NewMacChanges : False
Limit : 4096
LimitPolicy : DROP
LegacyAllowPromiscuous : True
LegacyForgedTransmits : True
LegacyMacChanges : False
Seems good.
But if i try to test network performances (first on the same physical host) i see quite poor results:
iperf client:
[root@m-esxi01:/usr/lib/vmware/vsan/bin] ./iperf3 -i -t300 -c 172.28.101.2 -fm
Connecting to host 172.28.101.2, port 5201
[ 4] local 172.28.101.1 port 59316 connected to 172.28.101.2 port 5201
iperf3: getsockopt - Function not implemented
[ ID] Interval Transfer Bandwidth Retr Cwnd
[ 4] 0.00-10.00 sec 2.02 GBytes 1738 Mbits/sec 0 0.00 Bytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.00 sec 2.02 GBytes 1738 Mbits/sec 0 sender
[ 4] 0.00-10.00 sec 2.02 GBytes 1738 Mbits/sec receiver
iperf Done.
[root@m-esxi01:/usr/lib/vmware/vsan/bin]
iperf server:
[root@m-esxi02:/usr/lib/vmware/vsan/bin] ./iperf3.copy -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Accepted connection from 172.28.101.1, port 44099
[ 5] local 172.28.101.2 port 5201 connected to 172.28.101.1 port 59316
iperf3: getsockopt - Function not implemented
[ ID] Interval Transfer Bandwidth
[ 5] 0.00-1.00 sec 232 MBytes 1.94 Gbits/sec
iperf3: getsockopt - Function not implemented
[ 5] 1.00-2.00 sec 183 MBytes 1.54 Gbits/sec
iperf3: getsockopt - Function not implemented
[ 5] 2.00-3.00 sec 208 MBytes 1.75 Gbits/sec
iperf3: getsockopt - Function not implemented
[ 5] 3.00-4.00 sec 212 MBytes 1.78 Gbits/sec
iperf3: getsockopt - Function not implemented
[ 5] 4.00-5.00 sec 198 MBytes 1.66 Gbits/sec
iperf3: getsockopt - Function not implemented
[ 5] 5.00-6.00 sec 203 MBytes 1.71 Gbits/sec
iperf3: getsockopt - Function not implemented
[ 5] 6.00-7.00 sec 199 MBytes 1.67 Gbits/sec
iperf3: getsockopt - Function not implemented
[ 5] 7.00-8.00 sec 200 MBytes 1.67 Gbits/sec
iperf3: getsockopt - Function not implemented
[ 5] 8.00-9.00 sec 217 MBytes 1.82 Gbits/sec
iperf3: getsockopt - Function not implemented
[ 5] 9.00-10.00 sec 197 MBytes 1.65 Gbits/sec
iperf3: getsockopt - Function not implemented
[ 5] 10.00-10.10 sec 23.0 MBytes 1.92 Gbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
[ 5] 0.00-10.10 sec 0.00 Bytes 0.00 bits/sec sender
[ 5] 0.00-10.10 sec 2.02 GBytes 1.72 Gbits/sec receiver
-----------------------------------------------------------
Is that a "normal" results for nested environments? If not, what can i check to improve performances?
Thanks, kind regards,
Nicola
