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Re: Squid with ASR9001

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Ah - in Squid's wiki don't pay attention on Variant III.

This is minimalistic topology, main goal was as minimum hardware units as possible (for cost minimization).

Also VRF-variant still in progress. We can't solve DNS proxying task as required yet.

25.10.2016 0:44, Eliezer Croitoru пишет:
> Well I do agree on most of the things but it seems that CPU is missing in
> some devices and there for a simpler protocol is better but…. CPU…
> Admins in many cases do not use their own to understand the complexity but
> from what I do see in the jobs market employers expect the unexpected.
> Or if to be more accurate: They expect a mage which knows and understand
> every single protocol language and piece of hardware.
>
> Can you gather me what ever documentation on the WCCP protocol?
> I want to see how simple it would be to implement the same concepts with an
> HTTP\tcp interface.
>
> Eliezer
>
> ----
> Eliezer Croitoru <http://ngtech.co.il/lmgtfy/>
> Linux System Administrator
> Mobile: +972-5-28704261
> Email: eliezer@xxxxxxxxxxxx

>
> From: Yuri Voinov [mailto:yvoinov@xxxxxxxxx]
> Sent: Monday, October 24, 2016 21:07
> To: Eliezer Croitoru <eliezer@xxxxxxxxxxxx>; 'Garth van Sittert | BitCo'
> <garth@xxxxxxxxxxx>; squid-users@xxxxxxxxxxxxxxxxxxxxx
> Subject: Re: Squid with ASR9001
>
>
> No.
>
> 24.10.2016 23:40, Eliezer Croitoru пишет:
> > And why would you want this
>       exactly?
>
>       > The most simple thing is to use routing policy and to monitor
>       the proxy in
>
>       > a much higher level then WCCP.
> Based on my personal experience with WCCP (over 6 years). PBR is VERY
> router's CPU consumpted.
> WCCP - is not (L2, not GRE. GRE performs on CPU, L2 on control-plane and
> hardware-accelerated).
>
> However, using edge router for WCCP is not so good idea by another reason.
> It breaks good network architecture in most cases. I'm not CCA, but ever for
> me it's obvious.
>
> So, underlying aggregations switches is more appropriate target for WCCP,
> because of they can be uses L2 WCCP - which is extremely fast.
>
> > For example fetch a web page or
>       a statistics page every 10 seconds.
>
>       > It’s considered pretty right in the industry.
>
>       > For routers it’s a whole another story but for a rock solid
>       system I do not
>
>       > believe WCCP is a must.
> Depending of router. Branch router must have. Just take a look on whole
> Cisco's router's range. Just for interest.
>
> > Any juniper and Cisco + others
>       these days do not rely on WCCP since it’s
>
>       > considered a hassle to maintain.
> Cats delicious. You just do not know how to cook them :)
>
> WCCP is a very simple protocol. While there may be poorly documented. There
> is another problem - very few people well versed in networking technologies,
> few details delves into what makes. The vast majority simply copy-paste
> configs without a single thought in his head, not bothering to understand.
>
> What is there to maintain? Just configure it once and sit on the ass
> straight.
>
>
>       > Eliezer
>
>
>
>       > ----
>
>       > Eliezer Croitoru <http://ngtech.co.il/lmgtfy/>
> <http://ngtech.co.il/lmgtfy/> 
>
>       > Linux System Administrator
>
>       > Mobile: +972-5-28704261
>
>       > Email: eliezer@xxxxxxxxxxxx <mailto:eliezer@xxxxxxxxxxxx>
>
>
>
>
>
>       > From: squid-users
>       [mailto:squid-users-bounces@xxxxxxxxxxxxxxxxxxxxx] On
>
>       > Behalf Of Yuri
>
>       > Sent: Monday, October 24, 2016 14:06
>
>       > To: Garth van Sittert | BitCo <garth@xxxxxxxxxxx>
> <mailto:garth@xxxxxxxxxxx> ;
>
>       > squid-users@xxxxxxxxxxxxxxxxxxxxx
> <mailto:squid-users@xxxxxxxxxxxxxxxxxxxxx>
>
>       > Subject: Re: Squid with ASR9001
>
>
>
>       > Ha, it seems ASR9000 really does not support WCCP exactly.
>       You right.
>
>
>
>       > WCCP supported on Nexus, on ASR1000... So, your router only
>       can use PBR or
>
>       > analoquie.
>
>
>
>       > The only idea is to buy 3750 as aggregation switch, config
>       WCCP on it and
>
>       > connect to your ASR by fiber trunk.
>
>       > 24.10.2016 16:30, Garth van Sittert | BitCo пишет:
>
>
>
>       > By Cisco employee - “Correct, there is no WCCP and no plans
>       for it
>
>       > either... :(”
>
>
>       https://supportforums.cisco.com/discussion/12227051/ios-xr-and-wccp
>
>
>
>       > WCCP supported platforms –
>
>
>
>
> https://supportforums.cisco.com/document/133201/wccp-platform-support-overv
> i
>
>       > ew
>
>
>
>       > Our ASR9001 has no commands that support wccp anywhere…
>
>
>
>
>
>
>
>
>
>
>
>       > Garth van Sittert | Chief Executive Officer     
>
>       > (BSC Physics & Computer Science)
>
>       > Tel: 087 135 0000 Ext: 201
>
>       > garth@xxxxxxxxxxx <mailto:garth@xxxxxxxxxxx>
> <mailto:garth@xxxxxxxxxxx> <mailto:garth@xxxxxxxxxxx>  
>
>       > bitco.co.za <http://www.bitco.co.za/> <http://www.bitco.co.za/>
>
>
>
>
>       > From: Yuri [mailto:yvoinov@xxxxxxxxx]
>
>       > Sent: Monday, 24 October 2016 12:12 PM
>
>       > To: Garth van Sittert | BitCo <garth@xxxxxxxxxxx>
> <mailto:garth@xxxxxxxxxxx>
>
>       > <mailto:garth@xxxxxxxxxxx> <mailto:garth@xxxxxxxxxxx>  ;
>       squid-users@xxxxxxxxxxxxxxxxxxxxx
> <mailto:squid-users@xxxxxxxxxxxxxxxxxxxxx>
>
>       > <mailto:squid-users@xxxxxxxxxxxxxxxxxxxxx>
> <mailto:squid-users@xxxxxxxxxxxxxxxxxxxxx> 
>
>       > Subject: Re: Squid with ASR9001
>
>
>
>
>
>
>
>       > 24.10.2016 13:16, Garth van Sittert | BitCo пишет:
>
>       > Yes, it looks like all of the ASR9000 range which makes use
>       of IOS XR no
>
>       > longer supports WCCP.
>
>       > Please, provide prooflink from Cisco.
>
>
>
>
>
>
>
>       > Policy Based Routing has been replaced by ACL Based
>       Forwarding or ABF.
>
>       > So? This is therminology difference, if any.
>
>
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>
>
>
>
>
>       > From: squid-users
>       [mailto:squid-users-bounces@xxxxxxxxxxxxxxxxxxxxx] On
>
>       > Behalf Of Yuri Voinov
>
>       > Sent: Sunday, 23 October 2016 9:35 PM
>
>       > To: squid-users@xxxxxxxxxxxxxxxxxxxxx
> <mailto:squid-users@xxxxxxxxxxxxxxxxxxxxx>
>
>       > <mailto:squid-users@xxxxxxxxxxxxxxxxxxxxx>
> <mailto:squid-users@xxxxxxxxxxxxxxxxxxxxx> 
>
>       > Subject: Re: Squid with ASR9001
>
>
>
>
>
>
>
>
>
>       > 23.10.2016 23:16, Garth van Sittert | BitCo пишет:
>
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>       >       > Good day all
>
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>       >       > Has anyone had any experience setting up Squid
>       with any IOS
>
>       >       XR Cisco routers?  The Cisco ASR9000 range doesn’t
>       support WCCP
>
>       >       and I cannot find any examples online.
>
>
>
>
>
>
>
>
>
>       > Seriously, the entire range?
>
>
>
>       > Who said that it does not support WCCP? It is obligation to
>       support, if
>
>       > only because it is not a home dish soap. That's when Cisco
>       write the
>
>       > documentation that does not support - and then we cry.
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>       >       > I have also found quotes regarding PBR on the
>       ASR9000… “With
>
>       >       IOS XR traditional policy-based routing (PBR) is
>       history”
>
>
>
>
>
>
>
>
>
>       > It's crazy city a forum talking about? PBR - is a fundamental
>       functionality
>
>       > for the router. Especially for the router at this level. I
>       somehow difficult
>
>       > to imagine a company that completely cuts down the business
>       by releasing
>
>       > incompatible with what device. This is only possible in the
>       OpenSource. But
>
>       > not in huge IT-business company. AFAIK.
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>       >       > I plan to use this on our 10Gbps ISP traffic to
>       improve
>
>       >       customer experience…
>
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>
>
>
>
>
>       > There is no examples because the solutions of such a level
>       rarely use
>
>       > Squid. Personally, I do not have a machine to play and write
>       an example to
>
>       > Squid's wiki. As you know, Christmas is not the wife of a
>       router is present
>
>       > as trinkets.
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>       >       > Garth
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>       >       > BitCo Email Footer
>
>
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- --
Cats - delicious. You just do not know how to cook them.
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