[c-nsp] Pix to Pix tunnel performance w/Windows File Sharing

[Tony Mucker]

Thanks for the pointers Chuck.  The TFTP session was less than stellar.  
It was even worse than the Windows file sharing, averaging about 
12KB/sec.  I didn't see any re-transmits during the Windows/SMB file 
transfer either.  I did an SCP transfer, and that flew.  Using SCP I was 
able to max out the T1 bundle.

Church, Chuck wrote:

>Sounds like an MTU issue (keep in mind the IPSec overhead).  VNC I
>assume uses UDP.  File transfers in Windows would be TCP.  Try putting a
>TFTP server on one machine, and pulling a file across.  (A tftp client
>comes with W2K and above).  If UDP flies and TCP doesn't, it sounds like
>a windowing problem caused by the MTU.  Netstat -s will show you
>re-transmits on the windows devices.  Might want to watch them during
>transfers.
>
>
>Chuck Church
>Lead Design Engineer
>CCIE #8776, MCNE, MCSE
>Netco Government Services - Design & Implementation
>1210 N. Parker Rd.
>Greenville, SC 29609
>Home office: 864-335-9473
>Cell: 703-819-3495
>cchurch at netcogov.com
>PGP key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x4371A48D
>
>
>
>  
>