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Chapter 11 Firewall Configuration
P-660HWP-Dx User’s Guide
66
Figure 108 Firewall: Threshold
The following table describes the labels in this screen.
Table 66 Firewall: Threshold
LABEL DESCRIPTION DEFAULT VALUES
Denial of Service
Thresholds
One Minute Low This is the rate of new half-open sessions
that causes the firewall to stop deleting half-
open sessions. The P-660HWP-Dx continues
to delete half-open sessions as necessary,
until the rate of new connection attempts
drops below this number.
80 existing half-open sessions.
One Minute High This is the rate of new half-open sessions
that causes the firewall to start deleting half-
open sessions. When the rate of new
connection attempts rises above this number,
the P-660HWP-Dx deletes half-open
sessions as required to accommodate new
connection attempts.
100 half-open sessions per
minute. The above numbers cause
the P-660HWP-Dx to start deleting
half-open sessions when more
than 100 session establishment
attempts have been detected in
the last minute, and to stop
deleting half-open sessions when
fewer than 80 session
establishment attempts have been
detected in the last minute.
Maximum
Incomplete Low
This is the number of existing half-open
sessions that causes the firewall to stop
deleting half-open sessions. The P-660HWP-
Dx continues to delete half-open requests as
necessary, until the number of existing half-
open sessions drops below this number.
80 existing half-open sessions.