I have pair of MX250's (single interface, warm spare configuration) as an SD-WAN hub site. We see the warm unit sending its management traffic (e.g traffic to dashboard) with the VRRP source MAC rather than its own burnt in MAC. I have had a TAC case open for a few weeks now which is with engineering again as an upgrade to 15.44 did not resolve.
I am interested to see if anyone else has experienced this VRRP bug?
Woops ! I just edited my post to include the firmware versions. I will have to test in my lab if bringing the MX250 to the MX450 version will change the behavior ( which is still not the one expected from the RFC )
Yes, we've just downgraded all our MX 450 today from version 15.44 to 15.42. The support said that it impact only the management traffic but for us even the site-to-site tunnels were affected: it took hours to bring up a tunnel without any specific reason. As soon as we downgrade to version 15.42, all our site-to-site tunnels which were down went up.