troubleshooting Question

Network bottleneck?

Avatar of Castlewood
Castlewood asked on
RoutersNetworking Hardware-OtherSwitches / Hubs
18 Comments2 Solutions477 ViewsLast Modified:
Hi Experts,

We just upgraded our LAN switches from 100 to 1000 baseT yesterday. We have only about 45 clients so we piled two HPv1810-48G together. We basically connect all servers-alike to the Switch1 and all clients to the Switch2:
Switch 1: all servers, internet connection, printer servers, MPLS/VPN connection, etc
Switch 2: all clients
(Between two switches is connected with a CAT6e cable)

After the upgarde we got two issues I am so puzzled about:
  1. My internal LAN users experience an improved speed after the change of using GB switches but my remote MPLS users complain about the even worse speed while accessing the servers. How could that happen?

  2. I ran and found the download is normal (average 4.2 mpbs, we have 3T) but the upload is miserable (only 0.8 - 1.8 mpbs). If I change my computer to use the old 100baseT switch with uplink back to Switch1, I can get as high as 2.0-3.0 mpbs upload. How could this happen?

I just cannot explain. ISP said they don't see any issue at their side. Can you see anything wrong with my opology? Could it be something wrong with the hardware -- GB switches as they are pretty inexpensive? or Could it be because of some kind of bottleneck?

Can you shed some light on this?
David Kroll
Sr. Delphi Consultant


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