Hi, In ESXI I connected 3 network cables with 3 different Physical nic (2 public Network 188.8.131.52/25 184.108.40.206/26 and 1 private 10.116.X.X) and I created 3 different vswitch one for each network. Now I created 3 different vm one for each Network. 2 VM with network (10.116.x.x and 220.127.116.11/26) are working fine but VM with 18.104.22.168/25 network has some issue, some time it pings from outside vmware some time not. So it is working but not as per our expectations. Any suggestions ?
My initial thought is an IP conflict possibly, but without knowing your physical network and interface setup we might have a hard time giving you more specific advice. ESXi Standard switches are very basic. There is not much to configure other than MTU. You might also want to check that MAC learning and Forged Transmits are set to accept.
It will also be a good idea to check hardware like your cables, interfaces or ports. If your switch interfaces and NIC ports are SFPs then it is possible you have bad SFP. If not then it might be a NIC port or switch interface that is the problem and you can move the cable to test. NOTE: If you move the cable to another switch interface you will have to configure that switch interface with the same VLAN and setting as the original.
SSH into the ESXi host and look at the VMNIC stats to see if you are dropping packets, CRC errors, etc.
"esxcli network nic stats get -n vmnicX" replace "X" with vmnic number
Could also be firewall related if the connection is going threw a firewall. You could also have a connection flapping further up stream in your network from your ESXi server. Especially if you have internet facing routers/switches
You might have resolved this issue by now, but would like to check still . Usually intermittent connectivity issues may not be config issue. As seen in the other replies, have you looked at your SFP or switch ports . Interested to know what was the issue if you have already resolved it.
Your Subnetting for public network
Address: 22.214.171.124 10011100.10010001.00001110.00 000000
Netmask: 255.255.255.192 = 26 11111111.11111111.11111111.11 000000
Wildcard: 0.0.0.63 00000000.00000000.00000000.00 111111
Network: 126.96.36.199/26 10011100.10010001.00001110.00 000000 (Class B)
Broadcast: 188.8.131.52 10011100.10010001.00001110.00 111111
HostMin: 184.108.40.206 10011100.10010001.00001110.00 000001
HostMax: 220.127.116.11 10011100.10010001.00001110.00 111110
Address: 18.104.22.168 10011100.10010001.00001110.0 0000000
Netmask: 255.255.255.128 = 25 11111111.11111111.11111111.1 0000000
Wildcard: 0.0.0.127 00000000.00000000.00000000.0 1111111
Network: 22.214.171.124/25 10011100.10010001.00001110.0 0000000 (Class B)
Broadcast: 126.96.36.199 10011100.10010001.00001110.0 1111111
HostMin: 188.8.131.52 10011100.10010001.00001110.0 0000001
HostMax: 184.108.40.206 10011100.10010001.00001110.0 1111110
same net ?