Huawei OSN 550 Fiber Optical Network Transmission STM-4 SDH
Short Description:
| Ingress node | |
| Ingress direction of the UNI port | VUNI ingress policies: traffic classification and committed access rate (CAR) |
| PW ingress | CAR for PWs, the VLAN Pri field being mapped to the LSP EXP field |
| Egress direction of the NNI port | Weighted random early detection (WRED) congestion management, SP+WRR scheduling (SP is short for strict priority and WRR for weighted round robin.) |
| Transit node | |
| Ingress direction of the NNI port | Services being transmitted to different priority queues based on their LSP EXP fields |
| Egress direction of the NNI port | WRED congestion management, SP+WRR or SP+WFQ scheduling (WFQ is short for weighted fair queuing.) |
| Egress node | |
| Ingress direction of the NNI port | Services being transmitted to different priority queues based on their LSP EXP fields |
| Egress direction of the UNI port | WRED, SP+WRR or SP+WFQ scheduling, the LSP EXP field being mapped to the VLAN Pri field |
| Ingress direction of the UNI port | VUNI ingress policies: traffic classification and CAR |
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