Paul,

I would think that a laugh from enterprise datacenter operators
is definitely not a reason not to innovate or evolve the technology; and
more importantly, should not be a reason why certain protocol is not chosen
as an effective solution.  Unless there is a fundamental technical issue
with any protocol, that given protocol should be considered a viable option.

Now, in terms of protocols at hand, ie BGP and MPLS, - yes there was a time
many years ago, when IGP was sufficient to run the network, but as soon as
that network grew into N x networks = internetwork, we all moved to BGP as
the former was not suitable - and guess what - operators started reading
RFC 1771 and 2547.

Similarly, there was a time when we all run Spanning-tree and IGPs in data
centers.  But as we evolve DCs into complex networks of networks with scale
requirements of millions of VMs,  as charter states, we should reuse what's
available and innovate when needed, but certainly not based on the premise
of someone's comfort level, but actual technical requirement not
addressable with existing tools.  Protocols will evolve and operators will
read; and this is just a beginning.

Simplicity is a relative term.

--- Senad



On Thu, Apr 19, 2012 at 4:41 PM, Paul Unbehagen <[email protected]> wrote:

> I usually hear a laugh from enterprise datacenter operators when BGP and
> MPLS are mentioned as a option inside the DC.
>
> It comes down to the point of view that BGP and MPLS are too combersome to
> be worth the time and effort for their environment when there are simpler
> ways to solve the problems they've had and need just as simple ways to
> solve the new generation of problems.
>
> --
> Paul Unbehagen
> Director, PLM - Avaya Networking
> Office: 303-538-1219
> Email: [email protected]
>
> Sent from my iPhone
>
> On Apr 19, 2012, at 11:28 AM, AshwoodsmithPeter <
> [email protected]> wrote:
>
> >
> >> I am very much concerned about this. I know that this point is not
> >> shared by all, but for the DC folk I've talked to (and there are
> >> others I've talked to that say *exactly* the same thing), MPLS/BGP is
> >> simply a non-starter.
> >
> > While not a statistical sample by any means I've been on the receiving
> end of some similar comments from customers but my feeling is that they are
> not reacting to the data plane but more to a certain implementation of the
> control plane / usability. That is after all what they see and touch.
> >
> > Peter
> >
> >
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