ZyXEL ZyWALL ATP700 User Guide - Page 478

Chapter 22 BWM (Bandwidth Management) Table 185 Configuration > Bandwidth Management > Add/Edit LABEL DESCRIPTION Inbound kbps Type how much inbound bandwidth, in kilobits per second, this policy allows the traffic to use. Inbound refers to the traffic the Zyxel Device sends to a connection's initiator. If you enter 0 here, this policy does not apply bandwidth management for the matching traffic that the Zyxel Device 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 Zyxel Device 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 Zyxel Device 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. 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 Zyxel Device 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 and the BWM Type is set to Shared. Enable maximize bandwidth usage to let the traffic matching this policy "borrow" all unused bandwidth on the out-going interface. Maximum 802.1P Marking Priority Code Interface Related Setting Log OK Cancel After each application or type of traffic gets its configured bandwidth rate, the Zyxel Device uses the fairness-based scheduler to divide any unused bandwidth on the outgoing interface among applications and traffic types that need more bandwidth and have maximize bandwidth usage enabled. If you did not enable Maximize Bandwidth Usage, then type the maximum unused bandwidth that traffic matching this policy is allowed to "borrow" on the out-going interface (in Kbps), here. Use 802.1P to prioritize outgoing traffic from a VLAN interface. This is a 3-bit field within a 802.1Q VLAN tag that's used to prioritize associated outgoing VLAN traffic. "0" is the lowest priority level and "7" is the highest. See Table 184 on page 474. The setting configured here overwrites existing priority settings. Choose a VLAN interface to which to apply the priority level for matching frames. Select whether to have the Zyxel Device 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 Zyxel Device. Click Cancel to exit this screen without saving your changes. ZyWALL ATP Series User's Guide 478