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

[John Neiberger]

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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