All inbound RSVP messages on an interface must contain a RSVP integrity object for authentication and acceptance by RSVP.
RSVP message authentication using MD5 as described in RFC 2747 is implemented on Extreme devices to prevent spoofing of RSVP messages. Inbound RSVP messages with no Integrity object, or an incorrect integrity object, is dropped by RSVP. All outbound RSVP messages on an interface contain a RSVP integrity object.