how to pass almost like stateful info across to the oth…

ASA firewall cause outage….maintaining QOS in architecture ……(or)Cisco ASA in active /active mode, how to pass almost like stateful info across to the other
member?

A.
ECMP

B.
BFD

C.
IP SLA

D.
ASR groups

Explanation:
ASR = Asymmetric routing