Re: Another WAAS question

Thank you. I will keep you posted on my progress as I will be implimenting Waas, i'm not sure if I will try to split the optimization between CMs. :-)

---- Carlos G Mendioroz <tron_at_huapi.ba.ar> wrote:
> Indeed, even with context, the reason from there is that WAAS express
> does not do DRE encoding. That is not related to having a CM or not.
>
> Yep, the CM is the keys keeper, so if you loose CM, you better not
> restart your WAEs. But that is of course if you decide to cipher the
> DRE, which is optional if I remember well.
>
> In any case, I doubt it would be a supported scenario, but this is
> ccielab list after all, so would be fun to know if it works.
>
>
> JB Poplawski @ 03/12/2014 09:47 -0300 dixit:
> > I cited a page that has some context around it.
> >
> > /2) *You lose DRE when peering two WAAS Express devices. * Since WAAS
> > Express only does DRE decode, having WAAS Express devices on both ends
> > of the connection means you effectively limit yourself to only TFO + LZ
> > even if the policy is set for TFO DRE LZ (e.g. Full optimization). This
> > is why WAAS Express is recommended to peer with a WAAS appliance at the
> > head end./
> >
> > Meaning if you're using WAAS Express, the only option you have is TFO
> > DRE LZ. DRE won't be available without CM so you're down to TFO + LZ.
> >
> > I believe the reason is CM manages the proprietary encryption of the DRE
> > Cache on the WAE boxes. In the WAAS bootcamp I went to, I recall losing
> > the CM causes issues on being able to access the DRE cache. My
> > notes/workbook are at the office, it would take me some digging to find it.
> >
> > I would reach out to TAC to confirm this, as it's not best practice and
> > something I'm not familiar with. From my WAAS 5.0 Sizing Guide (Circa
> > 2012) The 294-4G appears to be the lowest CM box you can use. I assume
> > that can be picked up on the cheap, otherwise the Cisco WAAS VM options
> > have to go even lower.
> >
> > HTH,
> > JB
> >
> > On Wed, Dec 3, 2014 at 12:48 AM, Carlos G Mendioroz <tron_at_huapi.ba.ar
> > <mailto:tron_at_huapi.ba.ar>> wrote:
> >
> > Not really so, not according to the note you cited:
> >
> > "Since WAAS Express only does DRE decode, ..."
> >
> >
> >
> > JB Poplawski @ 02/12/2014 23:45 -0300 dixit:
> > > Same tech, just different hardware of where it runs. DRE Caching
> > won't work without the CM.
> > >
> > > Sent from my iPhone
> > >
> > >> On Dec 2, 2014, at 6:36 PM, <dls152_at_cox.net
> > <mailto:dls152_at_cox.net>> <dls152_at_cox.net <mailto:dls152_at_cox.net>> wrote:
> > >>
> > >> This mentions waas express. Is this the same as Waas wave appliance?
> > >> ---- JB Poplawski <jb.poplawski_at_gmail.com
> > <mailto:jb.poplawski_at_gmail.com>> wrote:
> > >>> Quick google search pulls this up.
> > >>>
> > >>> Lose DRE caching and reporting.
> > >>>
> > https://supportforums.cisco.com/discussion/11278381/waas-express-between-2-routers-cm-required
> > >>>
> > >>>
> > >>>> On Tue, Dec 2, 2014 at 2:37 PM, Carlos G Mendioroz
> > <tron_at_huapi.ba.ar <mailto:tron_at_huapi.ba.ar>> wrote:
> > >>>>
> > >>>> Gee, I don't know.
> > >>>> The protocol would support it, because discovery and
> > negotiation happens
> > >>>> w/o CM (central manager) involvement.
> > >>>> That would be fun, sharing the cost of the optimizationm :)
> > >>>>
> > >>>> JB Poplawski @ 02/12/2014 18:14 -0300 dixit:
> > >>>>> AFAIK you need to have both registered to the same CM for
> > policy push,
> > >>>> encryption setup, etc.
> > >>>>>
> > >>>>> You should be able to use a VM for the CM if that's any help.
> > >>>>>
> > >>>>> Sent from my iPhone
> > >>>>>
> > >>>>>> On Dec 2, 2014, at 12:28 PM, <dls152_at_cox.net
> > <mailto:dls152_at_cox.net>> <dls152_at_cox.net <mailto:dls152_at_cox.net>> wrote:
> > >>>>>>
> > >>>>>> Can you have a Wave applicance and a Central controller at site A
> > >>>> optimize WAN trafffic to site B with its own Wave appliance
> > and Central
> > >>>> controller. Or do you have to have both Wave applicances use
> > the same
> > >>>> Central controller in order to optimize a cross the WAN between
> > both sites?
> > >>>>>>
> > >>>>>>
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> > >>>> --
> > >>>> Carlos G Mendioroz <tron_at_huapi.ba.ar
> > <mailto:tron_at_huapi.ba.ar>> LW7 EQI Argentina
> > >>>>
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> > --
> > Carlos G Mendioroz <tron_at_huapi.ba.ar <mailto:tron_at_huapi.ba.ar>>
> > LW7 EQI Argentina
> >
> >
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>
> --
> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
>
>
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Received on Wed Dec 03 2014 - 10:17:08 ART