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Spirent KB Article
Doc ID: FAQ14475
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Spirent TestCenter: Does Spirent controller push flows one by one or all together?
Spirent sends flows on apply or add flows command with all modified flows or specified flows in a block. So,
if there are multiple flows added, on apply those flow definitions will be sent in a single packet.
TCP/IP buffering may result in several OF flow messages in a single packet.
if there is a single flow added, on apply a single flow definition will be sent
Product : Routing,Spirent TestCenter