Re: Cisco One Article

Hi Marc,

I agree with what you say and I think we need to think about the boundary
of the SDN network - OSPF and BGP (maybe RIP or EIGRP) are probably going
to be used on the edge of SDN networks to interwork with "legacy" network
systems in your environment or to other peer with other networks even if
they use SDN themselves.

SDN will be another tool for the toolbox I'm sure, but lets face it, the
CCIE R&S blueprint still has Frame Relay :)

Cheers,
Adam

On Thu, Jun 14, 2012 at 3:23 PM, marc edwards <renorider_at_gmail.com> wrote:

> I still think things will fall back on traditional protocols. What happens
> when there is a failure on controller? The practices taken to to
> traffic prioritization, path modification, dynamic discovery won't
> evaporate. You can't ignore the potential and yes a network engineer's role
> will change but it cout have a positive spin...
>
> On Wed, Jun 13, 2012 at 10:16 PM, sameer khan <khanzadap_at_hotmail.com>
> wrote:
>
> > It seems cisco is jumping the bandwagon of SDN. But What the future hold
> > for
> > CCIE candidates ? Is it time to think about moving to software side ?
> >
> >
> >
> > Thanks
> >
> >
> > > Date: Wed, 13 Jun 2012 21:40:49 -0700
> > > From: bdennis_at_ine.com
> > > To: ccielab_at_groupstudy.com
> > > Subject: Re: Cisco One Article
> > >
> > > Quote: "Cisco also unveiled proof-of-concept controller software and
> > > proof-of-concept OpenFlow v1.0 agent for its Catalyst 3750-X and 3560-X
> > > switches for SDN research"
> > >
> > > But who uses 3750 and 3560's as a data center switch? They should have
> > > started with something from the Nexus line. I guess it's at least a
> > start.
> > >
> > > --
> > > Brian Dennis, CCIEx5 #2210 (R&S/ISP-Dial/Security/SP/Voice)
> > > bdennis_at_ine.com
> > >
> > > Internetwork Expert, Inc.
> > > http://www.INE.com
> > >
> > > On 06/13/2012 12:24 PM, Tony Singh wrote:
> > > >
> >
> http://www.networkworld.com/news/2012/061312-cisco-sdn-260138.html?hpg1=bn
> > > >
> > > > Some interesting ideas inc vxlan and software defined 3750x and 3560x
> > for
> > r&d, wish I was there
> > > >
> > > >
> > > > --
> > > > BR
> > > >
> > > > Tony
> > > >
> > > > Sent from my iPad
> > > >
> > > > On 2 Jun 2012, at 16:38, WorkerBee<ciscobee_at_gmail.com> wrote:
> > > >
> > > >> Yes, there are customers in AU/NZ running QFabric in production.
> > > >>
> > > >>
> > > >> On Sat, Jun 2, 2012 at 7:45 PM, Radioactive Frog<
> pbhatkoti_at_gmail.com>
> > wrote:
> > > >>> Both vendor still won't support a third party SFP! what a insane.
> > > >>> Is there anyone who've deployed Qfabric yet in production?
> > > >>>
> > > >>> On Sat, Jun 2, 2012 at 7:07 PM, Joseph L. Brunner
> > > >>> <joe_at_affirmedsystems.com>wrote:
> > > >>>
> > > >>>> Ok ok ok - juniper boys settle down - we hear ya -
> > > >>>>
> > > >>>> Here is a breath of sanity on qfabric I found
> > > >>>>
> > > >>>> http://www.mentby.com/chris-evans-2/qfabric.html
> > > >>>>
> > > >>>>
> > > >>>>
> > > >>>> -----Original Message-----
> > > >>>> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On
> > Behalf
> > Of
> > > >>>> Karim Jamali
> > > >>>> Sent: Saturday, June 02, 2012 4:39 AM
> > > >>>> To: Alexander Halim; Cisco certification
> > > >>>> Subject: Re: Article on Juniper QFabric
> > > >>>>
> > > >>>> Hi Alexander,
> > > >>>>
> > > >>>> I would say it is a much better architecture for various reasons.
> > > >>>>
> > > >>>> 1. With Nexus FEX, the N2K act as line cards& all traffic has to
> be
> > sent
> > > >>>> to the parent N5K whereas the QFnodes have a routing engine to
> > decide
> > where
> > > >>>> to send the packet.
> > > >>>> 2. There is only a single lookup across the whole system. There
> is a
> > > >>>> Fabric Header that is added by the QFnodes to determine which
> QFnode
> > the
> > > >>>> packet should be sent to .
> > > >>>> 3. The system can scale up to 6,144 10GE ports and still managed
> as
> > a
> > > >>>> single switch.
> > > >>>> 4. Fully converged I/O in terms of connecting the SAN switches to
> > the
> > > >>>> QFnodes.
> > > >>>>
> > > >>>>
> > > >>>>
> >
> >
> http://juniper.mwnewsroom.com/press-releases/deutsche-boerse-group-selects-ju
> > niper-networks-to--nyse-jnpr-0816396
> > > >>>>
> > > >>>>
> >
> >
> http://newsroom.juniper.net/press-releases/bell-canada-selects-juniper-networ
> > ks-single-tier--nyse-jnpr-0811293
> > > >>>>
> > > >>>>
> > > >>>> Thank You
> > > >>>>
> > > >>>> On Sat, Jun 2, 2012 at 10:54 AM, Alexander
> > Halim<cisco.alexand_at_gmail.com
> > > >>>>> wrote:
> > > >>>>
> > > >>>>> It seems similar to Nexus FEX but with much higher port density.
> > But
> > > >>>>> has anyone deployed QFabric in production?
> > > >>>>>
> > > >>>>> Regards,
> > > >>>>> Alexander Lim
> > > >>>>>
> > > >>>>> On Jun 2, 2012, at 4:48 AM, Sukhjit Hayre
> > > >>>>> <sukhjit.hayre_at_googlemail.com>
> > > >>>>> wrote:
> > > >>>>>
> > > >>>>>>
> > > >>>>>
> > http://m.zimbio.com/Cisco+Systems+Inc./articles/k8ulf-PRjAg/Juniper+QF
> > > >>>>> abric+smashed+Cisco+dreams
> > > >>>>>>
> > > >>>>>> --
> > > >>>>>> BR
> > > >>>>>>
> > > >>>>>> Tony CCNP CCNA R&S JNCIS-SEC MCSE
> > > >>>>>>
> > > >>>>>> Sent from my iPhone on 3
> > > >>>>>>
> > > >>>>>>
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> > > >>>>>>
> > > >>>>>>
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> > > >>>>>
> > > >>>>>
> > > >>>>>
> > > >>>>>
> > > >>>>>
> > > >>>>
> > > >>>>
> > > >>>> --
> > > >>>> KJ
> > > >>>>
> > > >>>>
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Received on Thu Jun 14 2012 - 15:56:52 ART