How to change Session Timeout Period in IFD Enabled Dynamics CRM 2011

By using Windows Power Shell, you can change the TokenLifetime property for the relying party objects :
Steps : 

1.     Open a Windows PowerShell prompt.

2.     Add the ADFS2.0 Windows PowerShell snap-in:
           PS > Add-PSSnapin Microsoft.Adfs.PowerShell

3.     Configure the relying party token lifetime:
   PS > Get-ADFSRelyingPartyTrust -Name:"relying_party_name"
   Output Like :
   AutoUpdateEnabled     : True
   DelegationAuthorizationRules   :
   EncryptionCertificateRevocationCheck : None
   <snip/>
   TokenLifetime      : 0
         Note : You can get the relying_party_name from here : 
   Go to ADFS Managment -> Expend Trust Relationships --> Select Relying Party Trusts
   Then you will get the added relying party entries into the right pane.

4. PS >Set-ADFSRelyingPartyTrust  -TargetName "relying_party" -TokenLifetime 480
       Here i am setting up TokenLifetime to 480 minutes , that means the session will expire after 480 min (8 hrs).