xpmode, two NICS, one small netgear switch. Am I adding a lot of traffic to the network.

I have some pcs where I have had to install two nics, one nic dedicated to Windows 7, one nic dedicated to xpmode. Performance is very good.

The internal card is a Realtek. The external (pci1x express card) nics is an Intel Desktop Card.

I connect both cards to a Netgear 5 port gigabit switch and then connect the gigabit switch to the main switch in the closet. I have everything set to NOT auto negotiation. I have to use a small switch since each office only has one ethernet port.

What I am concerned with is how much traffic am I adding to the network or am I adding any additional traffic to the network. My network flooded recently and was not sure what the problem was even though I had a monitor on it.

Is connecting a small switch to a larger switch inefficient?

Who is Participating?
Andrew Hancock (VMware vExpert / EE MVE^2)Connect With a Mentor VMware and Virtualization ConsultantCommented:
Even the basic and most inexpensive of network switches are very reliable?

did you use ping to find the issue?

how was it resolved?

could be a switch fault, or network interface fault?
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Your additional connection of two network interfaces should not cause your network issues.

However, what functions are your computers doing?

e.g. realtime broadcast of TV streams to internet clients?

when you network was flooded - what happened, and what did you observe?
dronethoughtAuthor Commented:
Thank you hanccocka,
When the network flooded, my latency on the network was high. Normally, speeds are 30/6. The day the network flooded speeds were 10/.3...emails could not be sent out, nothing could be sent out and remote access into the network was barely crawling. The pcs are basically running xpmode for some old databases and a contact manager and Windows 7 for everything else. No streaming.
Thank you.
AkinsdConnect With a Mentor Network AdministratorCommented:
Use wireshark to capture the traffic
You probably had a broadcast storm or DNS issue.

The capture will tell you the traffic flowing around
dronethoughtAuthor Commented:
I basically disconnect the extra switch I had in each office and am using just one NIC per pc, not two. One is disabled. I did an entire DHCP and DNS inventory and standardized everything. I noticed many BYOD on site and they generate a lot of traffic. I have two sql databases in XPMODE and this causes a lot of traffic. By really getting into DHCP and DNS, I believe the issue is at bay, it took a lot time. Thank you to both. I have PRTG and it is useful. One of the loopback devices on a Server 2003 was generating a lot of traffic.

What I noticed was this

I ping server2
There is a delay of three seconds
Then I get <1 ms responses, four send four received

There should not be a delay.

I worked with the server card and eliminated the delay. The respond SHOULD respond immediately...I had a latency issue on my network.
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