Each profile is represented by a profile name which may contain alphanumeric and special character. As explained in earlier section, the Y.1564 SAT profile can be color aware or color blind and various layer 2 fields can be specified. This section illustrates the different components of a Y.1564 test profile. Interface TenGigE0/0/0/1.1000 l2transport Following config snippet is shown from the node PE1.(refer to logical topology in the concept section). The permitted test can be either in internal or external or both depending on the type of test we want to run. Ideally the target interface must be an L2 transport interface (physical port or sub-interface, bundle or non-bundle). The service UNI or Attachment circuit needs to be enabled to run Y.1564 tests. Following config snippet shows targeted LDP based p2p VPWS configuration between two PEs Run an Y.1564 test by attaching the profile to the interfaceĪs mentioned earlier only point-to-point L2VPN services are supported.The Y.1564 testing methodology on NCS 500/5500 routers includes the following steps. The above parameters are computed over a test duration which is configurable under the SAT profile in the range of 1 minutes to 1440 Minutes (24 Hour). Measurement of Frame Delay Variation (Jitter) is not supported. Cisco NCS 500 and NCS 5500 routers support the measurement of the following statistical parameters: These parameters help in validating the committed SLA for the provisioned service. Y.1564 defines various parameters that can be measured on the DUT, which in turn related to the performance indicators of the service like throughput and latency. The following table shows the packet size for Y.1564 SADT on the NCS platforms.
#Cisco loopback test ethernet mac#
Destination MAC address can be specified while starting an Y.1564 test. The source MAC for generated traffic flow is taken from the interface on which Y.1564 profile is attached.
In external mode traffic is sent out of the interface. In internal mode the traffic is generated at the UNI and forwarded towards the network (via the service). The direction of Traffic Generation can be internal or external. The Y.1564 implementation on NCS 500 and NCS 5500 routers implements the two-way mode. For this mode, the remote end needs to be properly configured to loopback the traffic sent towards it. Based on the return traffic this mode calculates various statistics like throughput, loss etc. Traffic is looped back on the far end after MAC swap. In this mode, traffic generation and all measurements are done locally on the DUT. This mode is not available in NCS 500 and NCS 5500 products. Here the DUT measures the traffic received on the service interface in order to verify the proper service configuration. This eliminates the need for an external probe The device under test (DUT) generates the traffic and sends it out on the interface where service has been provisioned. There are various operations as per Y.1564 viz.
This part includes concepts, supported scenarios & configuration examples to demonstrate how operators can run Y.1564 SADT on the box. We will discuss the implementation and various use-cases and their configurations & verifications.
#Cisco loopback test ethernet series#
The objective of this series of articles is to capture the Y.1564 capabilities of NCS 5500 and NCS 500 series routers. This particular functionality was introduced on Cisco NCS 500 and NCS 5500 series routers starting release IOS XR 7.1.x. This service activation acceptance testing of Ethernet-based services can be implemented as a test function inside of a network element. The ITU-T recommendation Y.1564 defines an out-of-service test methodology to confirm the proper configuration and performance of an Ethernet service prior to customer delivery and covers the case of both a point-to-point and point-to-multipoint topology. Y.1564 Service Activation Testing on NCS : Part1Ĩ minutes read Paban Sarma, Technical Marketing Engineer ( )Ĭhethan K.
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