Re: OSPF over Frame-Relay - Interface-DLCI vs. Map IP/Broadcas

From: sanjay (ccienxtyear@xxxxxxxxxxx)
Date: Fri Sep 07 2001 - 18:50:28 GMT-3


   
Disagree wasn't the correct word to use (my bad). I guess it depends on the
setup of the fram switch and how many DLCI's are configured per interface on
the switch. and also if using sub-interface on the router

-Sanjay

----- Original Message -----
From: "louie kouncar" <lkouncar@UU.NET>
To: "'sanjay'" <ccienxtyear@hotmail.com>; <John.K.Feuerherd@WellsFargo.COM>;
<roger@securabyte.com>; <ccielab@groupstudy.com>
Sent: Friday, September 07, 2001 1:39 PM
Subject: RE: OSPF over Frame-Relay - Interface-DLCI vs. Map IP/Broadcas

> Sanjay,
>
> Please don't disagree because you are not Correct...
>
>
>
> Louie J. Kouncar CCIE #7994
> TCO3 Senior Data Center Engineer
> WorldCom Web Hosting (Tysons)
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> sanjay
> Sent: Friday, September 07, 2001 3:48 PM
> To: John.K.Feuerherd@WellsFargo.COM; roger@securabyte.com;
> ccielab@groupstudy.com
> Subject: Re: OSPF over Frame-Relay - Interface-DLCI vs. Map IP/Broadcas
>
>
> I disagree..the Frame Relay Switch provides the DLCI.
>
> -Sanjay
>
>
> ----- Original Message -----
> From: <John.K.Feuerherd@WellsFargo.COM>
> To: <ccienxtyear@hotmail.com>; <roger@securabyte.com>;
> <ccielab@groupstudy.com>
> Sent: Friday, September 07, 2001 12:28 PM
> Subject: RE: OSPF over Frame-Relay - Interface-DLCI vs. Map IP/Broadcas
>
>
> > For Frame-Relay Point-to-point sub interfaces you do need the
"Frame-relay
> > interface-dlci" command. Otherwise how would the DLCI get assigned to
that
> > interface.
> >
> > Here is how I understand it:
> > "Frame-Relay Interface-DLCI" assigns a DLCI to a particular interface.
> With
> > this command you are relying on INV-ARP to do the layer three to layer
two
> > mapping for you. This is the only way that you can assign a DLCI to a
> > Point-to-Point sub interface.
> >
> > "Frame-relay map" with this command you are statically mapping the layer
> > three protocol to layer two(the DLCI). You can't use this command on a
> > point-to-pont sub interface, but rather only on multipoint and the
> physical
> > frame relay interface. I recommend doing this on the lab and not
trusting
> > INV-ARP.
> >
> > As far as the "broadcast" statement after the map command, it is used
for
> > enabling the forwarding of broadcast and multicast packets. This is
needed
> > for the correct operation of some routing protocols.
> >
> > Hope that helps,
> >
> > JF
> >
> > -----Original Message-----
> > From: sanjay [mailto:ccienxtyear@hotmail.com]
> > Sent: Friday, September 07, 2001 11:44 AM
> > To: Roger Sohn; Ccielab (E-mail)
> > Subject: Re: OSPF over Frame-Relay - Interface-DLCI vs. Map IP/Broadcas
> >
> >
> > For point to point, theres no need for configuring DLCI's, MAP or
> Broadcast
> > statements.
> >
> > -Sanjay
> >
> >
> > ----- Original Message -----
> > From: "Roger Sohn" <roger@securabyte.com>
> > To: "Ccielab (E-mail)" <ccielab@groupstudy.com>
> > Sent: Friday, September 07, 2001 9:50 AM
> > Subject: OSPF over Frame-Relay - Interface-DLCI vs. Map IP/Broadcas
> >
> >
> > > I'm running OSPF over Frame-Relay in a hub and spoke
> > > configuration.(CCbootcamp labs) I've set up Router1(hub) to have
> > interface
> > > S0.1 (p2p) and interface S0.2(multipoint). For multipoint
connections,
> > it's
> > > pretty easy because I just input map ip statements.
> > >
> > > But for my p2p connection, I'm having trouble understanding when I'm
> > > supposed to use the "frame-relay interface-dlci" , "frame-relay map
ip",
> > or
> > > frame-relay map ip broadcast" statements on the hub and spokes. Can
> > anyone
> > > help shed some light on this?
> > >
> > > I've tried using a combination of all 3 types on both the hub and
spoke,
> > and
> > > every time the hub and spoke are able to ping each other without any
> > > problems.
> > >
> > > -Roger
> > > **Please read:http://www.groupstudy.com/list/posting.html
> > **Please read:http://www.groupstudy.com/list/posting.html
> **Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html



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