Security Consideration for Session

[Mahzad Zahedi <mahzad.zahedi@gmail.com>]

Hi

we are using SP initiated SSO profile and HTTP Post Binding.

 Is it necessary to maintain session when SP wants to use another service after authenticate to Idp?

what about when we have corrupt in network ? Is it necessary to reauthenticate after authenticate to idp?

Can I use Session Token Profile with SSO Profile for session management?

Thanks