I am having an issue connecting a VC of EX4300s for a non-VC of EX4600s. As you can see from the topology (sorry for using the wrong stencils) the 4600s are using the et-0/0/24 as a trunk port for all VLANs. The l3-irb interfaces are defined (VRRP) on the 4600s and the stack of 4300s are only doing layer 2.
All others times I have done a setup like this I would use (2) 10G uplinks from each 4600 and do LACP. I'm stuck on how to do this with a VC to non-VC. The uplink interfaces on all these devices are setup and standard trunks running RSTP.
I am only using (1) 10G uplink from each 4600 going to 2 members in the VC. When plugged into the VC, I can ping the gateway just fine, but when I unplug the uplink the 1st 4600, I lose connectivity. Any ideas on how to troubleshoot this?