From: Barney Gaumer (bagaumer@yahoo.com)
Date: Thu Sep 18 2003 - 14:49:39 GMT-3
That was a great explanation!
I have a LMI related question that kind of dove-tails
with this.
when I "debug frame-relay lmi" on one of my prod
routers at work, I see all of the PVC info for
"interface x" with status and bandwidth etc..
When I do it at home I get bandwidth of 0. What LMI
type do I need to get the bandwidth to show up? or is
there something else I need to do on my frame switch??
Thanks,
Barney
--- Brian McGahan <bmcgahan@internetworkexpert.com>
wrote:
> Ken,
>
> The 'frame-relay interface-dlci' command isn't used
> for protocol
> mappings, it's simply used to assign the VC to the
> interface. By
> default, all Frame-Relay VCs are assigned to the
> main interface.
> Therefore, the 'frame-relay interface-dlci' command
> on the interface is
> not used to assign the VC, but instead to apply
> attributes such as FRTS
> or VoFR on a per PVC basis.
>
> On a point-to-point or multipoint interface, the
> command still
> accomplishes the same thing, to assign the VC to the
> interface. On
> point-to-point interfaces, layer 2 to layer 3
> protocol resolution is not
> necessary, so assigning the VC is the only step.
> For multipoint sub
> interfaces, frame-relay inverse-arp is enabled by
> default. Therefore,
> if you use the frame-relay interface-dlci command on
> a multipoint
> subinterface, you will automatically send inarp
> requests on the VC for
> whatever protocols you are running on the interface.
> If you use the
> 'frame-relay map' command, you are disabling
> inverse-arp for that
> protocol for that VC. If you use the 'no
> frame-relay inverse-arp', you
> are disabling inverse-arp for all protocols for all
> VCs on that
> interface.
>
> HTH,
>
> Brian McGahan, CCIE #8593
> bmcgahan@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987
> Direct: 708-362-1418 (Outside the US and Canada)
>
>
> > -----Original Message-----
> > From: nobody@groupstudy.com
> [mailto:nobody@groupstudy.com] On Behalf
> Of
> > Ken.Farrington@barclayscapital.com
> > Sent: Thursday, September 18, 2003 11:53 AM
> > To: ccielab@groupstudy.com
> > Subject: RE: Frame-Relay HELP with static mappings
> :(
> >
> > One thing to add, is that on the major interface
> when I use the frame-
> > relay
> > interface dlci command, it does not show up as a
> static entry and i
> get a
> > dynamic entry
> >
> > ie,
> >
> > !
> > interface Serial0
> > ip address 10.10.10.4 255.255.255.0
> > encapsulation frame-relay
> > frame-relay interface-dlci 401
> > !
> >
> > R4>sh frame map
> > Serial0 (up): ip 10.10.10.2 dlci
> 401(0x191,0x6410), dynamic,
> > broadcast,, status defined, active
> >
> >
> > So even though you can put the command in, it does
> not seem to setup a
> > static entry on the router and gets the mapping
> dynamically :))
> >
> >
> > Thx
> >
> > -----Original Message-----
> > From: Farrington, Ken: IT (LDN)
> > Sent: 18 September 2003 17:49
> > To: ccielab@groupstudy.com
> > Subject: RE: Frame-Relay HELP with static mappings
> :(
> >
> >
> > thx dave. it's just working out all the
> combinations now so I am
> > confident
> > for my lab.
> >
> > and the combinations can be many correct?
> >
> > Is there a default guide to what is correct or not
> from a Cisco
> > standpoint.
> > I know real life may be different :))
> >
> > many thx for the quick reply.
> > Ken
> >
> > -----Original Message-----
> > From: MADMAN [mailto:dmadlan@qwest.com]
> > Sent: 18 September 2003 17:44
> > To: Ken.Farrington@barclayscapital.com
> > Cc: ccielab@groupstudy.com
> > Subject: Re: Frame-Relay HELP with static mappings
> :(
> >
> >
> >
> >
> > Ken.Farrington@barclayscapital.com wrote:
> >
> > > Please could you guys help me on this and
> confirm what I am saying
> is
> > 100%
> > > correct?
> > >
> > > Major Interface (multipoint by nature)
> > > Only frame-relay map or Inverse ARP - Can enter
> interface-dlci but
> it
> > will
> > > not work.
> >
> > Yes physical interface is multipoint though the
> interface dlci
> comand
> > will work, more by accident than design as I think
> inverse arp is what
> > allows this misconfiguration to work.
> > >
> > > point-to-point Sub Interface
> > > frame-relay interface-dlci ONLY
> > >
> > > multipoint Sub Interface
> > > Only frame-relay map or Inverse ARP (cant use
> interface-dlci *see
> > below*)
> > >
> > > R2(config)#int s0/0.1 multipoint
> > > R2(config-subif)#frame map ip 10.10.10.4 104 bro
> > > FRAME-RELAY INTERFACE-DLCI command should be
> used on point-to-point
> > > interfaces
> > > R2(config-subif)#frame-relay interface-dlci 104
> > > R2(config-fr-dlci)#^Z
> > > R2#
> > >
> > > MY POINT ......
> > >
> > > So if I have a point-to-point PVC between two
> routers, one is a
> > > point-to-point sub int and the other end is a
> Major interface. I
> HAVE TO
> > USE
> > > "-frame interface-dlci" on the point-to-point
> sub int and
> frame-relay
> > map
> > ip
> > > on the otherside of the PVC which is a major
> interface.
> > >
> > > (p-2-p sub-int) (major-int)
> > > rtr2-------------------------------rtr4
> > >
> > > Please could someone confirm this and let me
> know if there is any
> good
> > > documentation to clear this up.
> >
> > Yes what you describe above is the correct
> config. Fun for the
> lab,
> > don't do it in the real world;)
> >
> > Dave
> > >
> > > Many thx
> > >
> > >
> > >
>
------------------------------------------------------------------------
> > > For more information about Barclays Capital,
> please
>
=== message truncated ===
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