Update: The problem described in this article was logged with JTAC. It took a while but eventually they informed me they had resolved an issue with provisioning VMX in the Junosphere system. I have tried it since and the issue does appear to have gone away. However I am leaving this post up in case it has simply become more intermittent. Please let me know if you experience a situation like what is described below.
I usually use the ‘experimental’ VMX in my Junosphere topologies because I don’t like the VJX all that much. The VJX has security code in it, so it’s not quite like an MX really. Also I’ve seen oddities where it came up in flow mode with a default firewall policy of denying everything, and I was never able to work out why.
So instead I use the VMX for everything – which is better these days because it doesn’t use two VM units for the data and control planes like it used to. Why VMX is still ‘experimental’ after so long is a mystery to me.
However one thing just keeps cropping up with this that is just a bit annoying. Read the rest of this entry »