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Re: L2VPN

  • From: "alok" <alok.dube@apara.com>
  • Date: Tue, 10 Sep 2002 18:22:58 +0530
  • Resent-Date: Tue, 10 Sep 2002 10:09:03 -0400
  • To: <mpls-ops@mplsrc.com>

...i ran this query sometime back...

has anyone seen an implementation where the 2 remote ends are of different
types..? like ATM on one end and FR on the other?

----- Original Message -----
From: alok <alok.dube@apara.com>
To: <mpls-ops@mplsrc.com>
Sent: Thursday, September 05, 2002 9:58 PM
Subject: Re: L2VPN


...as an extension, why shud the encap even be the same at all?
i cud have FR on one end and ATM on the other...?

am i misinterpreting the draft ?

-rgds
Alok
----- Original Message -----
From: alok <alok.dube@apara.com>
To: <mpls-ops@mplsrc.com>
Sent: Thursday, September 05, 2002 9:53 PM
Subject: L2VPN


Hi All,

was just reading
http://www.ietf.org/internet-drafts/draft-kompella-ppvpn-l2vpn-02.txt

does any one have any idea why the fr encap etc should be a cross connect?

why cant we simply let DLCIs change across locations...

what i mean is this:

Site -A connects to PE via some FR provider to go to Site B.. who comes into
my MPLS network.....

he gives site A a DLCI to connect him from A to B.

now the FR provider on the other end of the MPLS VPN cant use the same DLCI
number....( he has used it etc)

why cant i associate this with another DLCI and send it across....

essentially if the CE-id is the distinguisher... why can i simply "simulate"
a huge FR network??? rather than a huge FR switch?

its upto me how to associate the CE-id with the DLCI..... but why not
support "encap-fr" instead of "encap-fr-ccc"?

same for ATM...

any ideas?

-rgds
Alok












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