ZyXEL Communications ZyWall USG 50-H Series, User Manual

Page: 416 / 704

Chapter 26 Application Patrol/BWM
ZyWALL USG 50-H User’s Guide
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DSCP Marking Set how the ZyWALL handles the DSCP value of the application’s traffic that
matches the policy (see
page 227 for details on DSCP). These fields only apply
when Access is set to forward .
Select one of the pre-defined DSCP values to apply or select User Defined to
specify another DSCP value.
preserve - Has the ZyWALL keep the original the DSCP value.
default - Has the ZyWALL set the DSCP value to 0.
Inbound Marking - For the application’s traffic that matches the policy, select how
the ZyWALL handles the DSCP value on the inbound traffic (the traffic the ZyWALL
sends to a connection’s initiator).
Outbound Marking - For the application’s traffic that matches the policy, select
how the ZyWALL handles the DSCP value on the outbound traffic (the traffic the
ZyWALL sends out from a connection’s initiator).
Bandwidth
Management Configure these fields to set the amount of bandwidth the application can use.
These fields only apply when
Access is set to forward .
Inbound kbps Type how much inbound bandwidth, in kilobits per second, this policy allows the
traffic to use. Inbound refers to the traffic the ZyWALL sends to a connection’s
initiator.
If you enter
0 here, this policy does not apply bandwidth management for the
matching traffic that the ZyWALL sends to the initiator. Traffic with bandwidth
management disabled (inbound and outbound are both set to 0) is automatically
treated as the lowest priority (7).
If the sum of the bandwidths for routes using the same next hop is higher than the
actual transmission speed, lower priority traffic may not be sent if higher priority
traffic uses all of the actual bandwidth.
Outbound
kbps Type how much outbound bandwidth, in kilobits per second, this policy allows the
traffic to use. Outbound refers to the traffic the ZyWALL sends out from a
connection’s initiator.
If you enter
0 here, this policy does not apply bandwidth management for the
matching traffic that the ZyWALL sends out from the initiator. Traffic with bandwidth
management disabled (inbound and outbound are both set to 0) is automatically
treated as the lowest priority (7).
If the sum of the bandwidths for routes using the same next hop is higher than the
actual transmission speed, lower priority traffic may not be sent if higher priority
traffic uses all of the actual bandwidth.
Priority Enter a number between 1 and 7 to set the priority for traffic that matches this
policy. The smaller the number, the higher the priority.
Traffic with a higher priority is given bandwidth before traffic with a lower priority.
The ZyWALL uses a fairness-based (round-robin) scheduler to divide bandwidth
between traffic flows with the same priority.
The number in this field is ignored if the incoming and outgoing limits are both set to
0. In this case the traffic is automatically treated as being set to the lowest priority
(7) regardless of this field’s configuration.
Maximize
Bandwidth
Usage Enable maximize bandwidth usage to let the traffic matching this policy “borrow”
any unused bandwidth on the out-going interface.
After each application or type of traffic gets its configured bandwidth rate, the
ZyWALL uses the fairness- based scheduler to divide any unused bandwidth on
the out-going interface amongst applications and traffic types that need more
bandwidth and have maximize bandwidth usage enabled.
Log This field controls what kind of record the ZyWALL creates when traffic matches
this policy. Please see
Chapter 38 on page 563 for more information.
no - the ZyWALL does not record anything
log - the ZyWALL creates a record in the log
log alert - the ZyWALL creates an alert
Table 144 AppPatrol/BWM > Other > Edit (continued)
LABEL DESCRIPTION