The MPLS WG Archive

["abhay" <abhay@multitech.co.in>]

Hi Tricci,

            Let the routing module know about mpls interfaces

            Got the catch ?

            Regards,

            Abhay

 

 

----- Original Message -----

From: Tricci So <tso@caspiannetworks.com>

Cc: <mpls@UU.NET>

Sent: Monday, January 14, 2002 7:52 AM

Subject: Re: regarding how to ethernet identifies mpls packet.?

> As far as I know, the only way to 
encapsulate Ethernet over MPLS is to refer to the
> Martini draft (see 
draft-martini-l2circuit-encap-mpls-xx.txt).  There is no such
> thing 
as  protocol type in MPLS to identify the encapsulated packet is 
Ethernet.
> You need to configure or to signal the info for the associated 
MPLS i/f.
> 
> Tricci
> 
> mvsjetti@hss.hns.com wrote:
> 
> > hi,
> >  i am working on MPLS over ethernet 
.
> > i had gone through the draft    
"draft-jagd-mpls-mcast-eth-00.txt"  .
> >
> > i was able 
to get the information on how ethernet identifies mpls packet  when
> 
> it
> > receives a packet form layers below it .(physical 
layer)
> > (i.e from the standard ethernet type values for MPLS 
mulicast and
> > unicast values 0x8847 & ox8848 in ethernet 
header)
> >
> > But when ethernet receives a packet from upper 
layer(i.e MPLS layer) how can
> > it know that it had received from 
MPLS layer? is there any standard method?
> > For example in BSD when 
ethernet receives a packet form IP it compares the
> > address family 
of destination with AF_INET and determines whether it received
> > 
packet from
> > IP or not ?  Similarly is there any address 
family  AF_MPLS defined for MPLS? if
> > not defined
> > 
then how can ethernet identify that it had recived packet from MPLS?
> 
>
> > can anyone  help me out in this issue?
> 
>
> > thanks in advance
> >
> > mahesh
> 
>
> > Hughes Software Systems