it is necessary to join two srx650 in chassis cluster (Passive/Active) via two switches EX4200 . I need to choose one from three examples. Please , help to define correct choice and describe what the settings should be on Srx650 and switch ex4200. Also important moment- is it possible connect swithes via fiber-optic ? Three Diagrams below outlines the logical configuration:
Things you should be aware of: SRX HA links communicate using jumbo frames and multicast addresses. So to make this work you need at least the following changes on the EX switches:
Over which media you connect the switches with each other is not important, you can use copper or fiber as you wish. I would use an
This being said, if possible I would always suggest directly connecting the HA links of any firewall device. This reduces the risk that a problem on the switch (hardware failure, software bug, human error) will cause you a split-brain situation (both firewalls become master) which will certainly ruin your day (BTDT).