> > > Hi All, > > > > Can you please help to understand the following behavior ? The following > topology is for a Single Active Multi-homing scenario where PE1 is the DF.. > > In this topology, when PE1-CE1 link is failed, PE1 sends the EAD/ES route > withdraw and PE3 updates its forwarding state to point towards PE2, > > which means at PE3 any packet destined to the MAC [learnt from PE1] will > go through PE2 [will not be flooded]. > > And later it is expected that the PE1 will start sending the MAC withdraw > to PE3, and in the meantime PE2 might start sending the MAC add to PE3. > > > > However in case of a quick link flap between PE1-CE1, what is the expected > behavior from PE1 ? > > 1). First it sends the EAD/ES withdraw, and then before it start sending > the EAD/ES add, does it required to send the MAC delete for all the MAC’s ? > and send the MAC add again for all the MAC’s Or > > 2). First sends the EAD/ES withdraw, and few MAC deletes, and again send > all the MAC’s add > > > > In quick flap scenario’s, when should PE3’s MAC entries should point back > to PE1 ?, should it be after the EAD/ES add or only after the MAC add is > received again from PE1 ? > > Is it mandatory for PE1 to send the MAC add again in this scenario ? > > > > > > > > > > > > Thanks, > > Chalapathi. >
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