The following errata report has been verified for RFC9568, "Virtual Router Redundancy Protocol (VRRP) Version 3 for IPv4 and IPv6".
-------------------------------------- You may review the report below and at: https://www.rfc-editor.org/errata/eid8301 -------------------------------------- Status: Verified Type: Technical Reported by: Quentin Armitage <quen...@armitage.org.uk> Date Reported: 2025-02-17 Verified by: Jim Guichard (IESG) Section: 6.1 Original Text ------------- Advertisement_Interval Time interval between VRRP Advertisements (centiseconds) sent by this Virtual Router. Default is 100 centiseconds (1 second). and section 7.1 says: * It MUST verify that the VRID is configured on the receiving interface and the local router is not the IPvX address owner (Priority = 255 (decimal)). If any one of the above checks fails, the receiver MUST discard the packet, SHOULD log the event (subject to rate-limiting), and MAY indicate via network management that an error occurred. Corrected Text -------------- Advertisement_Interval Time interval between VRRP Advertisements (centiseconds) sent by this Virtual Router. Configurable value in the range 1-4095 (centiseconds). Default is 100 centiseconds (1 second). and section 7.1 should say: * It MUST verify that the VRID is configured on the receiving interface and the local router is not the IPvX address owner (Priority = 255 (decimal)). * It MUST verify that the Max Advertise Interval is non zero. If any one of the above checks fails, the receiver MUST discard the packet, SHOULD log the event (subject to rate-limiting), and MAY indicate via network management that an error occurred. Notes ----- The Skew_Time and Active_Down_Time are calculated by multiplying by Active_Adver_Interval which is the Advertisement_Interval of the current active virtual router. A value of 0 for the Active_Adver_Interval will result in Skew_Time and Active_Down_Interval being 0 (centiseconds). The consequence of this is that all backup routers will immediately time out the Active_Down_Interval and transition to Active state. All but the lowest priority virtual router will send an advert, all virtual routes will keep timing out and sending VRRP adverts and the LAN will be flooded with VRRP packets. It causes mayhem (I have tried it)! -------------------------------------- RFC9568 (draft-ietf-rtgwg-vrrp-rfc5798bis-18) -------------------------------------- Title : Virtual Router Redundancy Protocol (VRRP) Version 3 for IPv4 and IPv6 Publication Date : April 2024 Author(s) : A. Lindem, A. Dogra Category : PROPOSED STANDARD Source : Routing Area Working Group Stream : IETF Verifying Party : IESG _______________________________________________ rtgwg mailing list -- rtgwg@ietf.org To unsubscribe send an email to rtgwg-le...@ietf.org
