Forum Discussion
Cirrusall connections are on a single tmm instance
I'm running a 2 CPU vCMP instance on a BigIP 7250v appliance. I wanted to look at the connections table using tmsh so I did a show sys connection command. According to the command output, all of the connections on my LTM are using instance 0 of TMM.
When I run the same command another LTM, in this case a LTM-VE running on VMWare, I see a fairly even distribution between TMM:0 and TMM:1.
Does anyone have any idea why this is happening? My configuration is pretty simple, mostly HTTPS virtual servers doing SSL decryption and reencryption. No iRules associated or strange profiles with them that would tie them to a single TMM instance.
2 Replies
arpydaysNimbostratus
Your setup may be subject to the behaviour described in the SOL below where control plane and data plane tasks are on separate logical cores for 11.5+ and HT Technology platforms. If the guest has a 2 vCPU allocation then data plane traffic may be serviced by a single TMM under normal load conditions..
https://support.f5.com/kb/en-us/solutions/public/15000/000/sol15003.html
cheers
Robert_Luechte2Thanks arpydays, that sounds exactly like what is happening. And it sounds like a good way to handle these things. I always think seperation of control and data plane is a good idea.
