Cisco Systems A9014CFD manual Configuring Y.1564 to Generate Ethernet Traffic, 10-56

Chapter 10 Configuring Ethernet OAM

Understanding Ethernet Loopback

Configuring Y.1564 to Generate Ethernet Traffic

Y.1564 is an Ethernet service activation or performance test methodology for turning up, installing, and troubleshooting Ethernet-based services. This test methodology allows for complete validation of Ethernet service-level agreements (SLAs) in a single test. Using traffic generator performance profile, you can create the traffic based on your requirements. The network performance like throughput, loss, and availability are analyzed using Layer 2 traffic with various bandwidth profiles. Availability is inversely proportional to frame loss ratio.

Figure 10-2shows the Traffic Generator topology over bridge domain describing the traffic flow in the external and internal modes. The traffic is generated at the wire-side of network to network interface (NNI) and is transmitted to the responder through the same interface for the external mode. The traffic is generated at the user to network interface (UNI) and transmitted to the responder through NNI respectively for the internal mode. External mode is used to measure the throughput and loss at the NNI port where as internal mode is used to measure the throughput and loss at the UNI port. During traffic generation, traffic at other ports is not impacted by the generated traffic and can continue to switch network traffic.

Figure 10-2 Traffic Generator Topology over Bridge Domain

Effective with Cisco IOS release 15.4.(01)S, traffic can be generated over cross connect interface. Figure 10-3shows the Traffic Generator topology over cross connect describing the traffic flow in the external and internal modes.

	Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
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