Document URL: 
https://access.redhat.com/documentation/en-us/red_hat_satellite/6.4/html-single/provisioning_guide/

Section Number and Name: 
Probably somewhere here:
https://access.redhat.com/documentation/en-us/red_hat_satellite/6.4/html-single/provisioning_guide/#Provisioning_Bare_Metal_Hosts-Creating_New_Hosts_with_PXE-less_Provisioning

Describe the issue: 
No mention about token_duration in provisioning guide

Suggestions for improvement: 

Satellite 6 offers a security feature in accessing ISO images being loaded by pxelinux.0 binary to the booting host. For each individual host to be kick-started, Satellite generates unique token that needs to be provided in URL of the iso image to be downloaded. Generating and providing of this token is done automatically via Satellite and TFTP server.

Validity of this token is X minutes by default in Satellite 6.0 and 360 minutes from Satellite 6.1 onwards. This time out is adjustable via token_duration (Administer => Settings => Provisioning) option. Therefore, reboot of the host shall be performed within configured time frame , since creating the host in Satellite for provisioning.

The token_duration can be disabled by setting it to 0

Additional information: