ZyXEL UAG4100 User Guide - Page 375

Chapter 31 Bandwidth Management Table 166 Configuration > BWM > Add/Edit LABEL Inbound Marking Outbound Marking DESCRIPTION Inbound refers to the traffic the UAG sends to a connection's initiator. Outbound refers to the traffic the UAG sends out from a connection's initiator. Select one of the pre-defined DSCP values to apply or select User Defined to specify another DSCP value. The "af" choices stand for Assured Forwarding. The number following the "af" identifies one of four classes and one of three drop preferences. See Section 12.4 on page 212 for more details. Select preserve to have the UAG keep the packets' original DSCP value. Bandwidth Shaping Inbound kbps Select default to have the UAG set the DSCP value of the packets to 0. 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 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). Outbound kbps 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 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). Priority 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. 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. Maximize Bandwidth Usage 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. Related Setting Log OK Cancel 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. Select whether to have the UAG generate a log (log), log and alert (log alert) or not (no) for packets that match the policy. Click OK to save your changes back to the UAG. Click Cancel to exit this screen without saving your changes. UAG Series User's Guide 375