CSS uses and automatic garbage-collector for removing inactive flows. To avoid the garbage collection to be performed for specific TCP ports you can use command "flow permanent". On the CSS the user can configure up to 10 permanent ports which will never be garbage collected. The problem of course is that the CSS can then run out of FCBs (Flow Control Blocks) if flows are not properly terminated. So it is recommended running a cmd-sched script with the perm ports so that periodically they can be removed and the older flows cleaned up.
Moquery is the command line cousin of Vizore, it's very helpful and efficient sometimes during the troubleshooting. This article aims to provide moquery cheat sheet to the users for some most common seen scenarios.
Here is the checklist before customers/partners contact Cisco TAC:
Firmware Version of APIC and Switch
Download Switch and APIC techsupport logs
Problem description (Symptoms with details)
Business impact (eg, what kind of services...
moquery usageAPIC moquerySwitchmoquery
This document discuss a common issue observed during the VMM integration & VM workload migration to ACI fabric.
VMware Virtual machines are hosted in Cisco UCS-B seri...