Hello,
I have performed few file transfer tests on my lab with following configuration :
1) Data Center :
WAN bandwidth = 6 Mbps
SH : sha1050-L, Speed/duplex seetings :LAN = 100/full, WAN = 100/full
Default SH settings were used
Windows Server 2003 (Domain Controller)
2) Branch site :
WAN bandwidth = 2 Mbps
SH : sha550-M, Speed/duplex seetings :LAN = 10/full, WAN = 10/full
Default SH settings were used
Files used for testing :
MS Word file = 2 Mb
MS Word file = 7 Mb
no SMB signing
Windows Client => Win XP professional edition SP3
My Results :
1) 2 Mb word file :
- baseline test (No SH on Branch, No SH on data center) = 3.9 seconds
- Cold test = 7.5 seconds
- Warm test = 5,8 seconds
1) 7 Mb word file :
- baseline test (No SH on Branch, No SH on data center) = 11 seconds
- Cold test = 23.7 seconds
- Warm test = 16.6 seconds
As you can see, even with warm tests, latency performance are always below baseline values.
However, when performing the same file transfer using Exchange 2003 (MAPI), I got much better performance (see below) :
1) 2 Mb word file :
- baseline test (No SH on Branch, No SH on data center) = 4.4 seconds
- Cold test = 3.1 seconds
- Warm test = 2.4 seconds
1) 7 Mb word file :
- baseline test (No SH on Branch, No SH on data center) = 15.6 seconds
- Cold test = 6.5 seconds
- Warm test = 5.9 seconds
On SH Reports > Networking > Current Connections , CIFS current optimized session shows the Compression and SDR icons as enabled, but also CIFS "Protocol Error",
Do you have any idea why I have so bad latency performance using CIFS ?
Thanks & rgds,
Houdaifa
