[ILUG] ISDN Ping Times.

[John Ronan]

I missed most of the start of this thread but anyways

Ping times, 3COM ISDN Pro External TA 
170 IEP Plus Vat has both Serial and USB ports. 
64 bytes from 159.134.238.254: icmp_seq=0 ttl=255 time=72.707 ms
64 bytes from 159.134.238.254: icmp_seq=1 ttl=255 time=70.044 ms
64 bytes from 159.134.238.254: icmp_seq=2 ttl=255 time=70.003 ms
64 bytes from 159.134.238.254: icmp_seq=3 ttl=255 time=70.029 ms
64 bytes from 159.134.238.254: icmp_seq=4 ttl=255 time=70.084 ms
64 bytes from 159.134.238.254: icmp_seq=5 ttl=255 time=69.974 ms
64 bytes from 159.134.238.254: icmp_seq=6 ttl=255 time=70.095 ms

I've found something which I'm going to have to investigate and its really
annoying.  I take a file, say a couple of hundred K and try and scp it
from my machine to another, doesn't matter where. 

jronan at fluffy.xxxxxx.com's password: 
nmap.tgz                  |        168 KB |  84.0 kB/s | ETA: 00:00:01 |53%

Netstat output:
Proto Recv-Q Send-Q Local Address           Foreign Address         State      
tcp        0  52892 195.X.XX.XXX:1022       fluffy.xxxxxx.com:ssh ESTABLISHED 

That's it dead connection.  Looking at the serial tx/rx lights shows tx
for a while, then goes out.  After that I get a (very) periodic rx light,
followed by a burst of data from the tx light.  In summary it takes about
7-8 minutes to transfer about 6K.  The Uarts are 16550A's. I'm using
wvdial with the speed setting of 115K2.  

Under windoze 98, using the USB port these symptoms don't appear.

It could be my serial ports. It could be firmware in the TA, I'll try the
3com site for an upgrade, but basically any opinions/suggestions would be 
gladly accepted.

Cheers
John