12-07-2012 01:45 AM
two B300 running 7.0.2a. Installed a 35km longdistance connection with Huawei DWDM Optix 6100
To test ISL before production, i ran spinfab test, but this test only comes back with 3MByte/s where it is a 4Gbit ISL
I set longdistance mode LS to 80km, tried with ISL_R_Rdy mode (IDLE) and ARB frames (vc_init=1) and took care of correct fillword setting
but still only 3MByte/s if i run spinfab
No error counters increase
Question: Is spinfab a valid test for longdistance connction and 3rd party DWDM equipment inbetween ?
Is spinfab able to fill up such a long ISL and telling me maximum throughput ?
FOS Admin guide says: spinfab supported with longdistance connections
12-13-2012 02:16 AM
finally, we used a vmware server at remote end, running some copy jobs across ISL-DWDM line and with these test we could fill up the pipe.
My assumption: on longdistance links (maybe because DWDM equipment inbetween) spinfab command tests ISL on physical layer but can not be used to test performance across longdistance link
Parameters we configured:
fix speed on switchport, here 4Gbit
vc_init = 0 for idle frames
LS around 100km
QoS and Credit Recovery parameter disabled