[c-nsp] Forcing "point-to-point" PIM operation over Ethernet

[Keegan Holley]

"no snmp-server enable traps pim neighbor-change" should disable the
messages.  You could also suppress them in your NMS.



On Thu, Oct 7, 2010 at 12:19 AM, John Neiberger <jneiberger at gmail.com>wrote:

> Ah, that explains it. I guess I need to brush up on PIM.  lol  That's
> scary, since I deal with it every day.  heh heh...  I guess I had OSPF
> on the brain.  I have a TAC case open with an NMS engineer right now.
> This is a really frustrating issue for us. It creates all sorts of
> false positives. We don't want to disable traps entirely because then
> we'll miss all the important ones, but it sure is a pain to deal with
> all the false alerts.
>
> My suspicion is that PIM DR elections usually only occur when a link
> changes status, so maybe that part of IOS assumes that if a DR change
> occurred, a link status change must have occurred, so send a trap! I'm
> hoping we'll figure out a solution.
>
> As always, thanks!
> John
>
> On Wed, Oct 6, 2010 at 10:14 PM, Benjamin Lovell <belovell at cisco.com>
> wrote:
> > Can't speak to the traps as I am not an NMS/SNMP guy but PIM does not
> have a P2P network designation. DR is elected for all PIM neighbor
> associations.
> >
> > -Ben
> >
> >
> > On Oct 6, 2010, at 5:42 PM, John Neiberger wrote:
> >
> >> We have a bunch of multicast devices connected to dozens of gigabit
> >> ethernet interfaces. Because it is Ethernet, a PIM DR is elected.
> >> These devices occasionally go in and out of service at an
> >> administrative level. When the device becomes administratively active
> >> again, a PIM DR election occurs again. For some reason, and Cisco TAC
> >> doesn't have an answer for this, this causes a link up/down trap for
> >> that interface to be sent to our NMS, which pages our on-call people.
> >> Very annoying. I'd like to find a way to have these Ethernet links
> >> treated as point-to-point links, but I see no such command.
> >>
> >> Can anyone here think of a way to do this? I'd really like to stop the
> >> whole DR election since we can't figure out how to stop the traps.
> >>
> >> Any thoughts?
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