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Spirent KB Article
Doc ID: FAQ19306
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Is DPDK available on STCv for Azure?
Spirent TestCenter Virtual
No. Currently only socket driver mode is supported.
STCv currently does not also support “Azure accelerated networking". This requires a kernel upgrade on STCv for Azure, which will be released in August. STCv would have to uses socket mode and performance is poor, max 1G at 1518 Frame Size.
More instances type support and a lot better performance will be ready in future versions (5.14 tentatively).
Product : STC Virtual