You can verify the maximum rate of frame transmission with no frame loss. The Ethernet data plane loopback feature provides a means for remotely testing the throughput of an Ethernet port. Egress ACL is not supported on the EFP.Egress span on the port and internal loopback on an EFP on the same port cannot be configured at the same time.Only one Ethernet loopback (terminal or facility) session can be active on an EFP at any instance.Internal and external loopbacks cannot be configured under EFP with encapsulation default or encapsulation untagged.Ethernet loopback is not supported on a range of dot1q tags.Port shaper on the ingress port in both external and internal loopback cannot be bypassed.The egress port shaper cannot be bypassed. Etype, src-mac, or llc-oui based loopback traffic filtering is not supported.Data plane loopback on routed port infrastructure is not supported.Restrictions for Ethernet Data Plane Loopback Internal loopback sessions configured must be within the 1 GB reserved bandwidth.However, loopback sessions can be configured using dot1q/QinQ, even if the underlying EFP has the dot1q/QinQ range configured. Dot1q tags must be configured while configuring Ethernet loopback sessions on EFPs.Ethernet loopback sessions are supported only of EFPs (service instances, Ethernet flow points, EVCs).Prerequisites for Ethernet Data Plane Loopback QoS Support for Ethernet Data Plane Loopback Information on Ethernet Data Plane Loopback This feature provides a means for remotely testing the throughput of an Ethernet port on the Cisco ASR 903 router. How to Configure Ethernet Data Plane Loopback. Information on Ethernet Data Plane Loopback.Restrictions for Ethernet Data Plane Loopback.Prerequisites for Ethernet Data Plane Loopback.Ethernet data plane loopback provides a means for remotely testing the throughput of an Ethernet port.
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