Hi Jeff, i read in Palo Alto document that say when deploy HA in Active-Active mode. We need to have 4 type of HA that is HA1, HA2, HA3 and HA4. so if we want to have back up to this. We must need at least 8 link between 2 PA firewall ? Or we only must some, not all HA link type ? And last question is are they must be 10G link or 1Gb is ok too. Thank you!