[saml-dev] asynchronous response on SAML over SOAP over HTTP

Hi, 
I have a question about SOAP (over HTTP) Binding for SAML.
In 3.1.3 of [SAMLBind],  SAML Assertion is typically returned 
synchronously on the same HTTP connection by SAML Responder.
Is it required? I couldn't find the explicit description about this 
issue in 3.1.3 [SAML Bind].
If synchronous reply is required, does it mean SOAP (over HTTP) Binding 
haven't supported asynchronous response (for example, in conjunction 
with ebXML messaging service) yet?

Regards,
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Yuji Sakata (NTT Data Corporation)
Tel: +81-3-3523-8081
E-Mail: 
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