[c-nsp] Slightly OT: Core routers used by American (and EMEA) SP's

Tom Zingale (tomz) tomz at cisco.com
Fri Jan 13 09:03:29 EST 2006


 Cisco certainly C7600 and C12K can do full non-sampled NetFlow. Not too
sure about Juniper.  So your statement about nonsampled is suspect. 

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net 
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Gert Doering
> Sent: Wednesday, January 11, 2006 1:18 AM
> To: Jason Chambers
> Cc: Nick Shah; cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] Slightly OT: Core routers used by 
> American (and EMEA) SP's
> 
> Hi,
> 
> On Wed, Jan 11, 2006 at 12:47:57AM -0800, Jason Chambers wrote:
> > On Jan 8, 2006, at 21:50, Nick Shah wrote:
> > > Juniper has made some 'interesting' comments in one of 
> their sales 
> > > pitches (to us). One of the most intriguing one was along 
> the lines 
> > > of
> > > '9 out of 10 largest SP's in US use Juniper routers in 
> their Core'.
> > >
> > > I want to find out how true or untrue this comment is.
> > >
> > > Ps. I know the statement is vague, but I want to get a 
> general feel 
> > > of Juniper's market in the US (and EMEA).
> > 
> > My understanding, based on brief discussions with a few network 
> > operators, is that Juniper has a better flow accounting 
> implementation 
> > than Cisco's NetFlow, so for that reason Junipers are used on ISP 
> > transit links.
> 
> Well, as far as I understand, they have a Really Nice netflow 
> PIC, that can do full unsampled netflow for just about any 
> amount of traffic.
> 
> The downside is that it will of course cost Really Large 
> amounts of money.  
> 
> But then, if you depend on unsampled netflow, and the amount 
> of traffic overwhelms what a Sup720 (or GSR line card) can 
> handle, there is nothing from Cisco you can buy that will 
> give you "more netflow power".
> 
> [..]
> > The Juniper tunnel PIC's are also attractive and cheaper (I 
> believe) 
> > than dedicating a Cisco linecard as a tunnel server card.
> 
> I don't see the fundamental difference.  "You need a J line card" vs.
> "you need a C line card" to get hardware assisted tunneling...
> 
> A slight difference is that *all* cisco platforms can do 
> low-pps tunneling without extra hardware - like "sending 
> multicast PIM registers", which is a MUST for IPv4 multicast 
> networks with local sources - and some of the C platforms can 
> do IP tunneling in hardware right out of the box, without any 
> extra costs (or loss of module slots).
> 
> So in that respect, Cisco seems to be the clear winner :-) - 
> unless you listen to J marketing too long, in which case all 
> that comes from C is just "old crap".
> 
> gert
> --
> USENET is *not* the non-clickable part of WWW!
>                                                            
> //www.muc.de/~gert/
> Gert Doering - Munich, Germany                             
> gert at greenie.muc.de
> fax: +49-89-35655025                        
> gert at net.informatik.tu-muenchen.de
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