@JasonCampbell you say: "While VRRP packets will flow thru all VLANs, having a dedicated physical link on its own dedicated VLAN that VRRP packets flow thru allow for the shortest path on a VLAN that is exclusively VRRP packets. True, VRRP will go out all VLANs -- but in case of any sort of congestion or link failure in the switch stack, you have a dedicated link and VLAN that will still allow VRRP packets to make it to the warm spare. So, IMO, it is still advisable to use a dedicated link with a dedicated VLAN to ensure timely arrival of VRRP packets to the warm spare without having to worry about the rest of the network." I don't think you understand the purpose of VRRP. VRRP is a protocol to provide protection for the default gateway of a VLAN. It allows clients configured with that default gateway to remain working during a failure. Having VRRP running on a dedicated VLAN between two MX units is - pointless.
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