Hi. We have interesting problem. We have Fortigate 3000D (intranet firewall), and 2 C6500s, our backbone switch (vss), and 2 N7Ks( will be new backbone switch) devices. Fortigate 3000D connected to C6500 , and C6500 switchs connected to N7K. We are using OSPF routing protocol between Forti to C6500 and N7K. And OSPF working very well until to connect to C9300 edge switch to N7K. All devices work with MST protocol. Problem is when we are connect C9300 to N7K, OSPF neighbor begin to flaping. And neighbor’s droped. I thing multicast traffic affected somethings.
... View more