ZyXEL Communications ZyWALL 1100 User Manual page 421

Table 168
LABEL
Bandwidth Shaping
Inbound kbps
Outbound kbps
Priority
Maximize
Bandwidth Usage
Related Setting
Log
OK
Cancel
25.2.1.1 Adding Objects for the BWM Policy
Objects are parameters to which the Policy rules are built upon. There are three kinds of objects
you can add/edit for the BWM policy, they are User, Schedule and Address objects. Click
Configuration > BWM > Add > Create New Object > Add User to see the following screen.
Chapter 25 BWM (Bandwidth Management)
Configuration > Bandwidth Management
DESCRIPTION
Configure these fields to set the amount of bandwidth the matching traffic can use.
Type how much inbound bandwidth, in kilobits per second, this policy allows the traffic
to use. Inbound refers to the traffic the ZyWALL/USG 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/USG 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.
Type how much outbound bandwidth, in kilobits per second, this policy allows the
traffic to use. Outbound refers to the traffic the ZyWALL/USG 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/USG 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.
This field displays when the inbound or outbound bandwidth management is not set to
0. 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/USG 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.
This field displays when the inbound or outbound bandwidth management is not set to
0. 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/USG 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.
Select whether to have the ZyWALL/USG generate a log (log), log and alert (log
alert) or neither (no) when any traffic matches this policy.
Click OK to save your changes back to the ZyWALL/USG.
Click Cancel to exit this screen without saving your changes.
ZyWALL/USG Series User's Guide
421