I have 2 5540 ASA in an Active / Standy setup. The Active firewall has a packet shaper sitting between it and the inside LAN. When I reboot the Packet shaper the FWs failover. I have the default timeings for failover 1 second hello 15 seconds keepalive. I would assume this emans that as long as the Active firewall sends a hello packet within 15 seconds the standby will not assume the active role. The Packet Shaper reboot takes only a couple of seconds (typically 1 or 2 lost ping packets) Am I missing something simple here?