24th April 07:36
SMB/NetBIOS slow over high speed WAN (T3/45mb) with 120ms RT
I have a high speed WAN link (45mb), but it's to the UK and I get 120ms
response time. I've noticed that SMB/NetBIOS activities are VERY SLOW.
Many complaints... To open up a shared directory takes 10-15 seconds,
accessing a 100K file takes 20-30 seconds, etc. There is little
utilization on the link.
FTP, SCP, etc run very quickly.
We tried bumping up TCP window size -- this helped with FTP, but Windows
file sharing is STILL VERY SLOW.
I assume NetBIOS is the problem. Is there any way to tune NetBIOS on the
client PC and/or server to reduce the chatiness of NetBIOS?
Any other ideas? This stuff should scream, in my opinion with a 45mb