Subject: Question on duplicate prune warning

From: [email-masked] (Sangeeta Mukherjee)
Date: Wed, 8 Jan 1997 15:32:33 -0800

What causes the following warning?

Jan  8 13:13:19 jurassic mrouted[25546]: warning - duplicate prune received on vif 8 from 129.146.86.129 for (129.146.55.0 224.146.200.31)/496 old timer: 23 cur gm: 0

Both Jurassic and the prune sender- encryption (129.146.86.129) are 
running mrouted3.8. Encryption has a single interface le0 as vif 1 
and a tunnel (with nobody at the other end) as the second vif. 
Even though encryption has no downstream interfaces to forwardmc packtes to, 
it sends a prune to jurassic every time it adds a (S,G) table entry - since
none of its vifs are subscribing to group G. My question is
what causes Jurassic to get duplicate prunes?

Sangeeta