Re: [mpls] validating incoming frames at an Ethernet interface of an LSR

[mngpl at singnet.com.sg]

Read RFC 3031 MPLS Architecture
--- Mitchell Erblich <erblichs at earthlink.net> wrote:

> Anoop Ghanwani,
> 
> 	On the non-RFC front I would suggest
> 
> 	"MPLS Technology and Applications"
> 	by Davie and Rekhter
> 
> 	Mitchell Erblich
> 	===========
> 
> On Jun 23, 2009, at 5:49 PM, Anoop Ghanwani wrote:
> 
> >
> > Let's say I have 3 routers R1, R2 & R3 connected
> > by a layer 2 switch.
> >
> > Let's say R1 advertises a label, say L1, for a
> > certain FEC to R2.  Let's assume R1 has a global
> > LIB (i.e. assigns different labels each time one
> > is requested).
> >
> > Now, if R3 sends a frame with L1 addressed to
> > R1's MAC address, would R1 just pick the frame
> > up and forward it, or would it actually notice
> > the problem and drop the frame?
> >
> > I know we're getting into implementation here,
> > but would appreciate if someone can point me to
> > an RFC/draft that discusses this issue.
> >
> > Thanks,
> > Anoop
> > _______________________________________________
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> > mpls at ietf.org
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> 
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