[c-nsp] OSPF point-to-point vs dr/bdr
Rodney Dunn
rodunn at cisco.com
Wed Aug 20 16:22:59 EDT 2008
Not sure. I didn't write it. ;)
>From a quick glance it seems to imply that type of behavior but
I'm not aware it was ever really done.
On Wed, Aug 20, 2008 at 07:42:13PM +0100, Paul Cosgrove wrote:
> I'm not sure I understand you there. Do you mean that the intention
> behind the draft RFC was for some form of point-to-point configuration
> command on the interface, which would apply to all link state routing
> protocols?
>
> Paul.
>
> Rodney Dunn wrote:
> > There was a point to point configuration on the link itself and it
> > caused a bunch of platform forwarding problems once.
> >
> > I wouldn't use that one.
> >
> > Note I'm not talking about the OSPF point to point control plane
> > configuration.
> >
> > Rodney
> >
> > On Wed, Aug 20, 2008 at 07:43:51PM +0200, sthaug at nethelp.no wrote:
> >>>> These are all good points, and makes me wonder - if it's *known* that an
> >>>> Ethernet link will be used as a point to point link between two routers,
> >>>> why doesn't everybody configure it explicitly as a point to point link?
> >>>> I know we always do...
> >>> The benefit/cost ratio is low. You aren't saving much be eliminating DR/BDR
> >>> election, and it's just one more unnecessary tweak to keep track of. IMHO.
> >> Funny, we look at it exactly the opposite way. We're a service provider,
> >> and a large majority of the Ethernet links where we run an IGP are point
> >> to point links. So we have the point to point configuration as part of
> >> our standard config template, nothing extra to keep track of.
> >>
> >> Steinar Haug, Nethelp consulting, sthaug at nethelp.no
> >>
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