I am having a big question regarding Poison reverse concept .
Here from the picture The Link between A and T is broken .
Now A sends a Triggered update to B and E immediately , and B , E sends the route back to the A .
Here is the question , B and E will send the poison route only to A or they will send the entire database and how will be the communication between E ,D and B,C ?
If the Router C sends an update to B with metric 4 then B accepts it ?