From: Erick B. (erickbe@xxxxxxxxx)
Date: Fri Feb 22 2002 - 01:25:27 GMT-3
Having the interface-dlci command on a multipoint
subinterface is not mis-configuration, its perfectly
valid config and no magic is involved.
On a sub, interface-dlci without any frame maps will
simply tells the router to use DLCI whatever on the
sub-interface instead of the physical. It still gets
the remote address via Inverse ARP.
You can use frame map on a multipoint as well, with
frame interface-dlci command. This doesn't use inverse
ARP and staticly assigns a remote protocol address to
a DLCI. The interface-dlci part lets you config QoS
stuff for individual DLCIs on that
interface/subinterface.
Erick
--- MADMAN <dmadlan@qwest.com> wrote:
> Yes but I think it's a misconfiguration that
> happens to usually work.
>
> Dave
>
> > RSiddappa@NECBNS.com wrote:
> >
> > U can use Intf-dlci for Multi-point subinterfaces
> also.
> >
> > R.
> >
> > -----Original Message-----
> > From: MADMAN [mailto:dmadlan@qwest.com]
> > Sent: Thursday, February 21, 2002 4:23 PM
> > To: Siddappa, Rajeev
> > Cc: neiby@ureach.com; jim.phillipo@guardent.com;
> > ccielab@groupstudy.com
> > Subject: Re: Frame map vs intfc DLCI
> >
> > Not sure what your saying exactly but the
> physical interface is
> > multipoint period. Subinterfaces are what you
> configure them to be.
> > multipoint use maps, p-p use frame-relay
> interface-dlci or automgic
> > for
> > either though I don;t recommend automagic.
> >
> > Dave
> >
> > > RSiddappa@NECBNS.com wrote:
> > >
> > > What I ment was for a Multi-point subinterface.
> ( that is u r
> > logical
> > > interface).
> > > Think that u have configured couple of
> miltipoint subintefaces on
> > one
> > > serail interface.
> > >
> > > R.
> > >
> > > -----Original Message-----
> > > From: MADMAN [mailto:dmadlan@qwest.com]
> > > Sent: Thursday, February 21, 2002 4:10 PM
> > > To: Siddappa, Rajeev
> > > Cc: neiby@ureach.com; jim.phillipo@guardent.com;
> > > ccielab@groupstudy.com
> > > Subject: Re: Frame map vs intfc DLCI
> > >
> > > It will happen automagically. If a sh frame
> map tells you the
> > DLCI
> > > is
> > > dynamic it was learned via inverse arp
> > >
> > > Dave
> > >
> > > RSiddappa@NECBNS.com wrote:
> > > >
> > > > What do u do when they ask in the lab, do not
> use fram-relay map
> > > statement.
> > > > How ill u configure a DLCi for Multipoint
> interface. ( Do not need
> >
> > > to worry
> > > > about physical, since DLCI will be assigned
> directly to the
> > physical
> > >
> > > > interface)
> > > >
> > > > My 2 cents..
> > > >
> > > > R.
> > > >
> > > > -----Original Message-----
> > > > From: John Neiberger [mailto:neiby@ureach.com]
> > > > Sent: Thursday, February 21, 2002 11:59 AM
> > > > To: jim.phillipo@guardent.com;
> ccielab@groupstudy.com
> > > > Subject: Re: Frame map vs intfc DLCI
> > > >
> > > > It's very interesting that you mention this
> today. I'd never,
> > > > ever, seen anyone use the frame-relay
> interface-dlci command on
> > > > multipoint interfaces until last night when
> another list member
> > > > who shall remain nameless (Tim Ouellette)
> called me about this
> > > > exact issue.
> > > >
> > > > We had a hub router configured with a
> multipoint subinterface
> > > > using two frame-relay interface-dlci commands
> instead of frame
> > > > maps. At first I thought this wouldn't work
> at all but it did,
> > > > somewhat. The command reference says appears
> to say that it
> > > > ought to work in conjunction with inverse ARP.
> > > >
> > > > However, it didn't seem to be stable and
> behaved erratically.
> > > > When we removed those two statements and
> replaced them with two
> > > > frame maps things settled down quite nicely.
> > > >
> > > > Specifically, we were having issues with
> EIGRP. It seemed to
> > > > work, but the output of show ip eigrp
> neighbors indicated that
> > > > things might not be working as they ought to
> be. Sorry, I
> > > > don't have that info available here at work
> but if Tim reads
> > > > this might be able to post the exact results.
> > > >
> > > > I've always been under the impression that we
> only used the
> > > > frame-relay interface-dlci command on
> point-to-point
> > > > subinterfaces so I've always used frame maps
> in all other cases.
> > > >
> > > > What do you all think about this issue? Is
> there a time to use
> > > > one or the other on multipoint interfaces?
> Any gotchas we need
> > > > to look out for?
> > > >
> > > > Thanks,
> > > > John
> > > >
> > > >
This archive was generated by hypermail 2.1.4 : Thu Jun 20 2002 - 13:46:30 GMT-3