I have a working setup with SRX and EX4200, and SRX and Cisco C3750 with LACP.
Now im moving from C3750 to EX4300.
The "show lacp interface" shows a up and running LACP bundle. But no traffic is forwarded.
The network has VSTP configured. But for this interfaces I have not defined any STP configuration.
This results in an interfaces that is not forwarding traffic.
The only way I manage to forward traffic via the ae-interface to the SRX is to configure "set protocols vstp interface ae3 edge".
The port is a trunk port with a few VLAN on it.
JunOS version 14.1X53-D35.3.
Why is this required?
//Rob