nanog mailing list archives

Re: MPLS VPNs or not?


From: Yakov Rekhter <yakov () juniper net>
Date: Wed, 08 Aug 2001 02:04:23 -0700


Vadim,


Yakov, that was not nice.

If you look at the "opposition" side you'll see quite a lot of people who
had to run real backbones; and who have a feeling of impact featurism has
on reliability of code.  For what it worth, nothing makes you appreciate
simplicity and quality as getting dragged out of bed in the middle of the
night to fix backbone falling down in flames because of yet anothing
interesting glitch caused by the flaky but feature-rich software.

My position was always consistent - if you can do something (like VPN) at
the edge boxes w/o inroducing complexity into core transport, this is the
way to do that.  

Then to be consistent with your own position, you certainly should agree 
that 2547 is "the way to do" VPNs, as with 2547 all the VPN-related 
information is confined to the PEs (where "PE" stands for provider *edge*),
and none of the P (core) routers maintain any VPN-related information.

Yakov.


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