Hardware restrictions:
pThe models of the two devices in the hot standby networking must be the same.
pThe models of boards installed in the same slot of distributed devices must be the same.
Software restrictions:
pThe active and standby devices must use the same software version.
pThe interfaces on the same slot of the active and standby devices must be added to the same security zone.
pThe physical sub-interfaces of the logical interfaces of the active and standby devices must be of the same
quantity and index.
pThe HASH board selection modes and HASH factor configurations of the distributed active and standby devices must
be consistent.
