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When source port is reused toward a TCP virtual server with CMP disabled or in single-CPU mode, a RST might be returned with a cause 'No flow found for ACK'.
Unexpected RST events occur on the client side.
-- TCP virtual server with CMP disabled, or in single-CPU mode. (For example, configuring an iRule that uses global variables is one way to put the system into single-CPU mode.) -- The client connection reuses the same TCP port as it used for a recently closed connection.
You can use either of the following workarounds: -- Enable CMP. -- Modify the iRule (e.g., use a static namespace instead) to make it CMP capable.
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