100
Step 3: ETM® System Configuration
Bandwidth
—Allows you to specify call resource limits by
maximum bandwidth in kbps. The Span uses the number of calls
value, but you can specify a value in bandwidth and it will be
automatically converted to number of calls.
IMPORTANT
If the Span is in NAT mode, you must allocate at least
the minimum number of media ports required for the call resources you
have specified. Media ports are allocated on the
Interfaces
tab of the
NAT Configuration
dialog box. If you are in bridge (non-NAT)
mode, you do not need to allocate media ports.
5.
In the
Limit signaling to
box, type the maximum number of
messages per second for signaling. The default is 50 signaling
messages per second. A
Diagnostic Log
message is generated when
traffic exceeds this limit. This can be useful for identifying possible
threats, such as denial-of-service attacks. When this rate is exceeded,
no new calls are allowed to begin until the rate drops below the limit;
current calls are unaffected.
By default, the Span is in bridge mode (non-NAT) and the relays default
closed (allow all traffic) when the power is off to the Appliance. If you want
to place the Span in NAT mode or set the relays to default open (drop all
traffic) when power to the Appliance is off, use the procedure below. Note
that if you place the Span in NAT mode, the relays automatically default
open.
To configure NAT or change the relay setting
1.
In the
Span Configuration
dialog, click the
Network
tab.
Network Tab
