> The Session ID also needs to be defined for SIM and AKA, as per Jouni's 
> comments.  That doesn't fit in with AKA' changes.

Yeah, I was thinking about that but didn’t go far enough. But you’re right. 
Maybe this needs to be a separate item for EAP-SIM.

> It may also be worth re-examining EAP-TLS.  Modern certificates are getting 
> large, and people are using longer certificate chains.  The result can be 
> that initial EAP-TLS authentication takes many packets.  This has issues not 
> just for latency, but also access point implementations.  Most 
> implementations will drop an EAP session if it hasn't finished after 40-50 
> packets.
> 
>  I've seen people run into this issue with large certificates and long 
> certificate chains.  It would be good to find a way to allow this use-case.

That’s interesting.

Do you have any suggestions on what to do about this issue, or were you 
thinking about just stating that implementations should not stop that early in 
the exchange?

Jari

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