I am having a lab with a problem
In the lab there are two LANs (LAN1 and LAN2) connected via 2 WAN routers (3745A).
Between the routers there are a simulated (Line simulator) 6 Mbit connection.
Between the two LANs, there are also attached a packet generator (Ethernet in both LAN) to measure packet loss and so on.
I start to send 6Mbit UDP traffic witht the packet generator with 6mbit line. Everything
works perfect. The next step is to simulate a bit-fault in the line simulator. I stare out
with a fault possibility equal to 1e7. In the next minute the packet loss measured by
the packet generator is falling dramaticly. Within a few second the packet loss is 100%.
Why is the packet loss 100%. What happend with the UDP packet? Should not the sending router continue to
send packets from LAN 1 to LAN 2 even with some bit fault on the line? It seems to me
that there are some kind of congestion on the sending router. Where should I start to troubleshoot?
Should I start at the routers buffer?
