ZyXEL Communications UAG4100, Руководство пользователя

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Chapter 30 Bandwidth Management
UAG4100 User’s Guide
291
Bandwidth
Shaping Configure these fields to set the amount of bandwidth the matching traffic can use.
Inbound
kbps
Type how much inbound bandwidth, in kilobits per second, this policy allows the traffic to
use. Inbound refers to the traffic the UAG sends to a connection’s initiator.
If you enter 0 here, this policy does not apply bandwidth management for the matching
traffic that the UAG 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 UAG 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 UAG 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 UAG 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
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 UAG 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.
Related Setting
Log Select whether to have the UAG generate a log ( log ), log and alert ( log alert ) or not ( no )
for packets that match the policy.
OK Click OK to save your changes back to the UAG.
Cancel Click Cancel to exit this screen without saving your changes.
Table 135
Configuration > Bandwidth Management > Add/Edit
LABEL DESCRIPTION