Using an External Data Source
The External Data Sourcing feature allows you to use devices outside of the test system to generate the bearer plane traffic used in a test, such as an Enhanced Layer 4-7 and a Reflector as shown in the example. The test system establishes the MN sessions with the SUT and waits for data packets from the Enhanced Layer 4-7 system. The packets are routed to the Reflector through the test system and the SUT, and the Reflector responds with traffic directed back toward the Enhanced Layer 4-7 system.
To use an external data source:
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Verify the test definition by first executing a verification test. Do not continue unless the verification test is successful.
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On the Data Traffic tab, select External from the Data Traffic drop-down list.
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Connect the data generator to the test server, using a different Ethernet interface than those used in the test definition.
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Configure the data generator to produce packets with the same source IP addresses used by the MN emulators.
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Add a static route that forwards response traffic addressed to MN IP addresses from the Landslide to the data generator.
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Execute the test case.
See examples of Spirent Landslide External Data Configurations and AMF-Nodal-External-Data.pdf
Example of External Data using 2 test servers:
To configure the eth port and IP address to connect an External Data source to a Nodal Test case:
- Include the ethx interface and enable the address (as in the example below - 10.204.0.1) ip pool in your port reservation, assuming it’s using eth4 :
- In the nodal test case (AMF Nodal below), include eth4 as “Extra Phys” as shown in the example below. Thus, whenever an outside device sending packet to 10.204.0.1, the AMF nodal will receive it on eth4 and auto recognize it as external data (as long as the source ip of the data falls into the data source NAT ip range in your slides which is 10.0.0.1). no need to set extra stuff in network devices tab for 10.204.0.1.
