what is the difference between SREJ and REJ

[Iven Xu]

Hi all,

    I try to understand "Handshake Process"  between client and server recently. I am confused about what is the difference between SREJ and REJ. 

      

        const QuicTag kREJ  = TAG('R', 'E', 'J', '\0');  // Reject

        const QuicTag kSREJ = TAG('S', 'R', 'E', 'J');   // Stateless reject

    I test with Chrome(60.0.3112.90), and when server receive CHLO, DoesPeerSupportStatelessRejects always return false. In this situation, server always send REJ to client. I wonder which client can support Stateless Rejects?

Could anyone tell me what is the difference with REJ and SREJ?

    Thank you.

[Ryan Hamilton]

When a client receives an SREJ message, it closes the connection and creates a new connection to send the next CHLO on. This allows the server to avoid keeping any state about the rejected handshake.

Cheers,

Ryan

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