02-28-2018 05:43 AM
I would like to know if there is any overview regarding the number of BB credit zero Rx & Tx per port for:
The threshold on our monitoring tool is:
'BB credit zero - Tx' > 1 000 000 or 'BB credit zero - Rx' > 1 000 000
I think that are not the right values. Especially, we have three different powerful switches. I’m sure that our 6510 is capable to handle way more than our old Brocade 200.
How or where I can get the information regarding a reasonable threshold value?
Thanks in advance
03-02-2018 07:34 AM
Main question - for what period of time software check thresholds BB Credit zero?
SAN switch checks every 2.5 microsec BB Credit zero event. And if those exceptions would 400K in 1 sec, that through this port don't go traffic in that second.
But if monitoring software (for example Brocade Network Advisor) check BB Credits exceptions for 5 min periods, that 1M BB Credit zero events .this is only 1/12 part of all time traffic.