From: Jongsoo kim (bstrt2002@gmail.com)
Date: Mon Apr 04 2005 - 19:59:38 GMT-3
You may be most likely correct. (Thanks for this).
I like to find out which one are compatible with each other.
On Apr 4, 2005 5:13 PM, Roy Dempsey <roy.dempsey@gmail.com> wrote:
>
> Thanks Jongsoo,
>
> I'm not sure that aal5ciscoppp and ppp over atm using aal5snap are
> entirely compatible. At least when I practiced on a remote lab I had
> to match up both ends.
>
> Has anyone else any experience with PPP over ATM and its different
> variations. When would you use one over another?
>
> Thanks
> On Apr 4, 2005 8:56 PM, Jongsoo kim <bstrt2002@gmail.com> wrote:
> > See below
> >
> > On Apr 4, 2005 2:55 PM, Roy Dempsey <roy.dempsey@gmail.com> wrote:
> > > Hi,
> > >
> > > I've had to return to a topic which I thought I knew, but which I've
> > > become confused about. I'm no ATM expert and my access to ATM
> > > equipment is limited so I'm hoping someone can help me gain some
> > > understanding on this topic. I have the following questions:
> > >
> > > 1. I think there are 4 possible ways to configure PPP over ATM.
> > > Under the assigned PVC:
> > > A. Protocol ppp virtual-template 1
> > > B. Protocol ppp dialer & dialer pool-member
> > > C. encapsulation aal5ciscoPPP virtual-template 1
> > > D. encapsulation aal5autoppp virtual-template 1
> > >
> > > Are there any others?
> >
> > ########## I understand all of above are compatible with each others.
> >
> > > 2. For any of the above do you need to specify encapsulation ppp under
> > > the virtual-template? I think its the default but most examples show
> > > it configured. It would need to be added to the dialer interface,
> > > correct? ( Yes)
> >
> >
> >
> > > 3. Are A and B locally significant only? In other words, can you
> > > configure either when configuring PPP over ATM, and both should work
> > > regardless of the other end. I don't think the other end should care
> > > whether a virtual-template or a dialer interface are configured but
> > > I'd like to check.
> >
> > ###### yes I understand dialer / ppp enc and VT are compatible.
> >
> >
> > > 4. If you're asked to configure PPP over ATM, I would assume that you
> > > are required to do either A or B above, as aal5ciscoPPP is a Cisco
> > > variation. Dangerous assumption?
> >
> > ### As I undertand all of them are compatible, it doesn't really matter
> > which one to use.
> > someone can collect me.
> >
> > > 5. I have labbed all of the above apart from 4 up with no difficulty.
> > > However, in the lab one end would already be configured. Apart from
> > > using ilmi-pvc-discovery to find out the PVC and encapsulation
> > > information, are there any other useful debug commands.
> > For SVC,
> > "show atm ilmi-status" will show nsap address after pvc 0/16 ilmi , pvc
> 0/5
> > qsaal ans esi-address are configured.
> >
> >
> > > 6. I haven't seen any examples of aal5autoppp and when you would use
> > > it. Can someone explain it and when you would use it? Is is applicable
> > > to the R & S exam?
> >
> > aal5autoppp is needed when you run PPPoA or PPPoE
> >
> >
> > > Are there any other possible variations I should be aware of for the
> > > lab? Any other tips or potential pitfalls?
> > >
> > > Thanks
> > > Roy
> > >
> > >
> > _______________________________________________________________________
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