Regarding IPFIX feature which is equivalent to Cisco NetFlow I have a couple of questions:
1- Do we need license for using this feature?
2- As I checked datasheet of MPC10E-C-MRATE and MPC7E-10G, this feature is supported on LC, do we need to install Multi-service MPC as well?
3- What is the benefit of JFLOW vs. IPFIX. Can I use IPFIX instead of JFLOW?
4- So If I choose using IPFIX can I omit JFLOW licenses?
Yes - see the other post where I mentioned the licenses 🙂 https://forums.juniper.net/t5/Junos/JFlow-on-MX960/td-p/480755
No - this is supported inline on the MPCs (linecards)
JFLOW or IPFIX is just the format of the packets. You can use both types depending on your needs (I expect you cannot use both JFLOW and IPFIX at the same time).