I have also 2 QFX5100 and I can create a virtual chassis.
After a switch-over of the routing-engine, it takes at least 5 minutes that the VC is back formed because the VCP interfaces are down.
This is not acceptable. I don't have this in a EX virtual chassis setup.
The VCPs are configured with the ports et-0/0/48 (40 Gbit)
Current software version : 17.4R1.16
According to a kb juniper article, it is a requirement to install the qfx-5-e junos version. When I check the junos download page for QFX5100, it is not available. (https://kb.juniper.net/InfoCenter/index?page=content&id=KB32473&cat=&actp=LIST)
Even the virtual chassis can be setup with the current software version, I would like to install the qfx-5-e version before going in production and maybe it will solve the issue with the switchover of the RE.
I saw on the download page that the qfx-5-e version is available for the QFX5110 switch. Can this junos package be used ?
Thanks for your support.