we did 3 simultaneous sessions with 880k pings to get the link full but while all this is going the traffic decreases

tks

Seems normal, need to check show interface.

Am I wrong to think that if I copy 3meg files from 3 different sources and a 800 size ping the link should remain full at least until one of these is finished ?

Three copies may or may not fill a link. 3 meg files are also too small for testing.

Pings, irrespective of size, are pretty much indifferent.

Again, you need to check "show interface".

I saw the decrease in traffic on the link from the " sh interfaces"

I need to be able to see the results of the ttcp as I know It will at least give me somthing. I could only see very little traffic than what I saw when i was testing ttcp in my lab. Any suggestions?

The reason I was asking for show interface, its because it also show errors and queue statistics, these are indication of congestion experienced.

Without supporting output, your question remains too vague and cannot be answered.

apologies didnt understand. I dont have "sh int" from the test I did but I will send you the sh int from the sites i ahve problems on:

#sh int s0/0/0:0

Serial0/0/0:0 is up, line protocol is up

Hardware is GT96K Serial

Description:

Internet address is

MTU 1500 bytes, BW 1024 Kbit, DLY 20000 usec,

reliability 255/255, txload 27/255, rxload 5/255

Encapsulation HDLC, loopback not set

Keepalive set (10 sec)

Last input 00:00:00, output 00:00:00, output hang never

Last clearing of "show interface" counters 04:19:32

Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: Class-based queueing

Output queue: 2/1000/64/0 (size/max total/threshold/drops)

Conversations 1/27/256 (active/max active/max total)

Reserved Conversations 4/4 (allocated/max allocated)

Available Bandwidth 12 kilobits/sec

30 second input rate 22000 bits/sec, 32 packets/sec

30 second output rate 109000 bits/sec, 44 packets/sec

528526 packets input, 82650255 bytes, 0 no buffer

Received 1557 broadcasts, 0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

884392 packets output, 289925088 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

0 output buffer failures, 0 output buffers swapped out

0 carrier transitions

Timeslot(s) Used:1-16, SCC: 0, Transmitter delay is 0 flags