RFC Errata


Errata Search

 
Source of RFC  
Summary Table Full Records

RFC 3973, "Protocol Independent Multicast - Dense Mode (PIM-DM): Protocol Specification (Revised)", January 2005

Source of RFC: pim (rtg)
See Also: RFC 3973w/ inline errata

Errata ID: 3271
Status: Verified
Type: Technical
Publication Format(s) : TEXT

Reported By: Joseph Weinstein
Date Reported: 2012-06-28
Verifier Name: Adrian Farrel
Date Verified: 2012-08-22

Section 4.5.1 says:

if StateRefreshCapable(I) == TRUE
         set PT(S,G) to largest active holdtime read from a Prune
         message accepted on I;

It should say:

if StateRefreshCapable(I) == TRUE
         set PT(S,G,I) to the Holdtime from an active Prune received on
         interface I. The Holdtime used SHOULD be the largest active one
         but MAY be the most recently received active Prune Holdtime.

Notes:

It is not clear what is meant by the "largest active holdtime", and in any event sec. 4.4.2.3 specifies a slightly different rule:

Send State Refresh(S,G) out interface I
The router has refreshed the Prune(S,G) state on interface I.
The router MUST reset the Prune Timer (PT(S,G,I)) to the Holdtime
from an active Prune received on interface I. The Holdtime used
SHOULD be the largest active one but MAY be the most recently
received active Prune Holdtime.

Additionally...
No macro PT(S,G) is defined anywhere in the RFC; the reference appears to be to P(S,G,I).

The concept of an "active Prune" is not defined in this RFC, but simply means those prunes which have not expired.

Report New Errata