The user can limit the number of concurrent sessions
to the same destination IP address. A wily attacker can
launch a distributed denial-of-service (DDoS) attack using
'zombie agents'. Setting a destination-based session limit
can ensure that device allows only an acceptable number of
concurrent connection requests, no matter what the source,
to reach any one host.
The default maximum for destination-based session limit is
128 concurrent sessions.
This attribute records the number of session connection based
on the destination source IP address that exceeds the specified
limit.