One Flow has one VLAN priority value associated, that VLAN priority value will be written in the outer most VLAN tag of the Ethernet frame before the Ethernet frame is forwarded to the aggregation network. Traffic within the policed bandwidth is forwarded to the aggregation network while traffic exceeding the policed bandwidth is either dropped or remarked with another VLAN priority. The ufcExceedingTrafficFlow parameter is used to configure whether traffic exceeding the policed bandwidth should be dropped or remarked with another VLAN priority before forwarding the packet to the aggregation network. Remarking of traffic is done by redirecting traffic exceeding the policed bandwidth of the current flow to another flow as illustrated below. IP DSLAM _______________________________________________________________ | _________________ | | ( ) | | /< | / (_________________) \ | | / | \ | | / | Remark / redirect \ | | / | exceeding traffic \ | | / | \ | | / __V______________ _\____________ | Aggregation |/ ( ) ( Initial ) | Network < |\ (_________________) (___selection__) | | \ | / | | \ | Remark / redirect / | | \ | exceeding traffic / | | \ | / | | \ __V______________ / | | \ ( ) / | | \< | (_________________) | | | | | | | | X Discard exceeding traffic | |_______________________________________________________________| Set ufcExceedingTrafficFlow to zero to drop traffic exceeding the policed bandwidth rate for the flow. Set ufcExceedingTrafficFlow to a value in the range 1..8 to redirect excess traffic to another flow. The value written to ufcExceedingTrafficFlow is the flowIndex of the flow where traffic must be redirected to. ufcExceedingTrafficFlow can not be set to the same value as the flowIndex of the current flow. Note: Care must be taken to not configure an infinite redirect loop. Valid from: EDA 2.2 R3A