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Network speed or lack there of

W

wildbill001

Weaksauce
Joined
Jun 2, 2012
Messages
85
I have ESXi 5.1 running on an AMD/Gigbyte 990FX mobo with 32g RAM.

My laptop is connected to my home network (say, 192.168.1.111) which is plugged into a 1gb ether-switch (unmanaged).

My ESXi has Intel/RealTek NICs, both running 1gb and are conncted to the unmanaged switch. On the ESXi box, I have two vswitch. vswitch0 has both NICs assigned to it and is my management network. I have only one VM on that switch which is a RH box acting as my router between the home network (eth0=192.168.1.0) and the "private" LAN in my ESXi system (eth1=172.16.239.0), NAT, DHCP and DNS server for the "private" LAN.

vswitch1 has no adapters assigned to it. It also has the virtual-router as well as one RH system (say, 172.16.239.11). vswitch1 is my 172.16.239.0 network.

I have added a route on my laptop so that I can putty directly into my RH system (172.16.239.11). So hopefully you have a decent picture of what my network looks like.

My issue is that now when I move/copy a file from my laptop to the 172.16.239.11 system or vice-versa, the network speed is no where near 1gb I'm not even sure it is close to 10mb. It seems it is more like 1b (which I know it is not, but it is SLOW).

The VM serving as my router has 1g RAM, 4 cores. Don't know if that is the bottleneck or really where it might be. Any thoughts or am I just stuck with poor performance?
 
Use iperf and get a real performance metric first. That'll take disk and other issues out of it.
 
I would tend to agree with the statement that disks (or just I/O in general) are the culprits. In this case, these are SATA 6, 7200rpm, 64mb cache on the ESXi side. Not as fast as an SSD but not shabby. AND to top it off, before I set up this networking, access and file transfers were MUCH faster.

BUT hey, I'll take a look at it to see if maybe I might have done something stupid while working late the other night.
 
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