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tcp-fast-open

date_range 20-Nov-23

Syntax

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tcp-fast-open  {
    disabled;
    drop;
}

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[edit services service-set service-set-name service-set-options]

Specify how TCP Fast Open (TFO) enabled packets are to be handled.

By default, all TFO packets are forwarded by the service PIC.

`disabled`	Any TCP packet with the TFO option present has the TFO option stripped from the TCP header of the packet, and the rest of the packet is forwarded as is. The benefit of stripping the header over dropping the packet is that the client does not have to wait for the retransmission timer to go off and then retransmit the SYN packet without the TFO option.
`drop`	Any TCP packet with the TFO option present is dropped.

system—To view this statement in the configuration.

system-control—To add this statement to the configuration.

Statement introduced in Junos OS Release 17.2.

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