> The links 1-2 and 3-4 are bonded by TEQL. > > TCP performance between Servers 1 and 2, and 2 and 3 is fine, as expected. > However, actual TCP throughput between Servers 1 and 3 drops dramatically > (compared to 1-2 and 2-3 performance), from ~320KBytes/sec to sometimes > below 120Kbytes/sec. > > If I use a single T1 link between each server (thus removing TEQL from the > process), performance between servers 1 and 3 is fine. I'd be very interested in your stats at each node - Can you give us (or at least me :)) the output of /proc/net/netstat, ifconfig etc? Do you see a lot of retransmissions? thanks, Nivedita --- Nivedita Singhvi (503) 578-4580 Linux Technology Center nivedita@us.ibm.com IBM Beaverton, OR nivedita@sequent.com - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org