Good Morning to all of you,
I have a strange problem with our Cisco 2801 Router in a Intranet with 3Com 4200G Switch. The router is connected via F0/0 to the 3Com Switch and via F0/1 to a HP 5304XL. The transfer from F0/1 to F0/0 is fine. 90% network utilization. Transfer the other way provides only 10-20% performance. If I replace 3Com switch with HP I'll get 40-90%. And if I replace HP with a cheap Netgear switch, then I'll get the same as from F0/0 to F0/1, 90%.
Can anybody tell me something on this strange phenomenon? The Cisco IOS is 12.3 .There is only routing activated on the 2801.
thanx a lot.