Technical data

FastIron Ethernet Switch Administration Guide 99
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Hitless management on the FSX 800 and FSX 1600
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Hitless Failover – An automatic, forced switchover of the active and standby management modules
because of a failure or abnormal termination of the active management module. In the event of a
failover, the active management module abruptly leaves and the standby management module
immediately assumes the active role. Like a switchover, a failover occurs without any packet loss to
hitless-supported services and protocols. Unlike a switchover, a failover generally happens without
warning.
Hitless Operating System (OS) Upgrade – An operating system upgrade and controlled switchover
without any packet loss to the services and protocols that are supported by Hitless management.
The services and protocols supported by Hitless management are listed in Table 15 on page 101.
Hitless failover and hitless switchover are disabled by default. To enable these features, refer to
“Enabling hitless failover on the FSX 800 and FSX 1600” on page 105 and “Executing a hitless
switchover on the FSX 800 and FSX 1600” on page 106.