nanog mailing list archives

Re: Enterprise network as an ISP with a single huge customer


From: Christopher Morrow <morrowc.lists () gmail com>
Date: Fri, 12 Jun 2015 22:23:53 -0400

On Fri, Jun 12, 2015 at 10:04 PM, Randy Bush <randy () psg com> wrote:
it's nice to have the tools to segregate traffic/users/things...
mpls/etc is one method to do that... I don't know that many
enterprises pursue this path though :( which is sad (I think).

i have seen a lot of this done with firewall devices and vlans.  with
vlans or mpls, you can make spaghetti without wires, one wheat and one
semolina.

oh absolutely. you can use many tools to lop off your fingers, my
point was that things like mpls (or vlans) provide a nice other tool
to use along with your firewalls and such.

of course you ought not willy-nilly go crazy with this, but... imagine
if the 'hr department' were in one contiguous 'VRF' which had a
defined set of 2-3 exit points to control access through... while
those willy 'engineers' could be stuck in their own ghetto/VRF and
have a different set of 2-3 exit points to control.

Expand your network over many locations and in large buildings and ...
it can be attractive to run a 2547 network that the company is a
'customer' of, or so I was thinking :)


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