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 2 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. RFC2745 - RSVP Diagnostic Messages
Read more about this topic: Resource Reservation Protocol
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