Editing Resource Reservation Protocol (section)

==Other features==
;Integrity
:RSVP messages are appended with a message digest created by combining the message contents and a shared key using a message digest algorithm (commonly [[MD5]]). The key can be distributed and confirmed using two message types: ''integrity challenge request''  and ''integrity challenge response''.
;Error reporting
:When a node detects an error, an error message is generated with an error code and is propagated upstream on the reverse path to the sender.
;Information on RSVP flow
:Two types of diagnostic messages allow a network operator to request the RSVP state information on a specific flow.
;Diagnostic facility
:An extension to the standard which allows a user to collect information about the RSVP state along a path.<ref>{{cite IETF |rfc=2745 |title=RSVP Diagnostic Messages}}</ref>

===RFCs===
* {{IETF RFC|2205|link=no}}
* {{IETF RFC|2210|link=no}}
* {{IETF RFC|2211|link=no}}
* {{IETF RFC|2212|link=no}}