Running version 6.1.x at the moment on 8 x VSP 7200.
In a Nutshell:
Im testing an IDS solution and configured a monitor-by-isid (with QoS = 3) to copy traffic across the SPB cloud to the IDS. We noticed a massive increase (1ms to 300ms) in ping latency across the core. The config was running what seems to be fine for a few days/weeks before this incident. Unplugging the IDS seems to restore normality.
I have a suspicion that I might be oversubscribing the core or egress interface, since its ((4 x 10GbE to a single 10GbE egress) x 4) , Mirror Interfaces are normally around 20% utilized, but who knows!? )
I do not see any indication of loss of packets on the interface side
show khi performance buffer-pool
show khi performance cpu
show khi performance memory
show khi performance process
show khi performance pthread
show khi performance slabinfo
show khi cpp port-statistics
show qos qosq-stats cpu-port
All of these output(s) look normal - as far as I can see since the dates of Hi's does not correspond with the recent impact -
I thought it might be memory or buffers running low causing this but cannot see it any indication in the stats.
Is there some other parameters I can watch to see drops or performance impact on the mirroring/monitoring side?
Other than this, the SPB core is super stable
Disclaimer - This is my first post. Apologies if I missed or got something wrong.