Juniper has a "This Week" book freely available that discussess, in detail, the path of a packet through an MX. It's quite an informative read.
http://www.juniper.net/us/en/training/jnbooks/day-one/networking-technologies-series/packet-walkthrough-mx-series/ This Week: An Expert Packet Walkthrough on the MX Series 3D provides the curious engineer with a global view of the short life (a few milliseconds) of packets inside the Juniper Networks MX Series of 3D routers. Cisco had a CEF book that was pretty decent too. --chip On Tue, Mar 29, 2016 at 7:58 AM, Mark Tees <markt...@gmail.com> wrote: > I watched a video the other day describing the manufacturing process Cisco > used for the UADP ASIC does that count? ;) > > I think it's actually a missing part of the puzzle in most training > material but possibly because previously it has been something vendors > don't talk about much? > > On Tuesday, 29 March 2016, Adam Vitkovsky <adam.vitkov...@gamma.co.uk> > wrote: > > > > Saku Ytti [mailto:s...@ytti.fi <javascript:;>] > > > Sent: Monday, March 28, 2016 12:24 PM > > > > > > On 28 March 2016 at 13:32, Adam Vitkovsky > > > <adam.vitkov...@gamma.co.uk <javascript:;>> wrote: > > > > > > > Public means exposed to whims of the wild Internet, that is in both > > data > > > rates (DDoS) and updates (Malformed BGP updates) something you can't > > > control. > > > > Private means very good control over traffic rates and control plane > > > > (number of updates,...) > > > > > > QoS should guarantee that Internet DDoS does not hurt L3 MPLS VPN. And > > > BGP free core should guarantee that core does not core(SIC) on random > BGP > > > UPDATE. > > > > > Hey Saku, > > > > Yes please, with BGP free core one usually relies on RRs and my point is > > that it's a good practice to run separate BGP process/RR (or at least > > sessions) for public control plane so malformed update that would god > > forbid cause iBGP session reset won't affect private control-plane > sessions. > > > > With regards to QOS, > > In my opinion QOS is just a small piece in the puzzle (as a meter of fact > > it's not even the first thing that matters when a packet hits the box) > and > > I think that one has to be well versed with how an ideal data-plane > > architecture looks like in order to be able to assess the HW capabilities > > and all the chokepoints across the chassis at hand correctly. Only then > one > > can tell whether a particular HW fits the design requirements. There are > > cases were one doesn't need to bother but designing a converged network > is > > not one of them. > > > > That said, I'd like to encourage all folks on the list to get educated in > > how routers work, it's fun trust me. I find it striking how much we know > > about how control-plane works (SR, BGP, ISIS ...) but so little about a > > life of a packet through the data-plane, even though a great deal of info > > is available online (though don't expect any fancy certificates for > knowing > > this stuff). Every time I ask a data-plane question on the list I get > > little relevant info and Saku is basically the only one whom I may > discuss > > these topics with except the vendor folks. > > > > adam > > > > > > > > > > > > > > > > > > > > > > > > Adam Vitkovsky > > IP Engineer > > > > T: 0333 006 5936 > > E: adam.vitkov...@gamma.co.uk <javascript:;> > > W: www.gamma.co.uk > > > > This is an email from Gamma Telecom Ltd, trading as “Gamma”. The contents > > of this email are confidential to the ordinary user of the email address > to > > which it was addressed. This email is not intended to create any legal > > relationship. No one else may place any reliance upon it, or copy or > > forward all or any of it in any form (unless otherwise notified). If you > > receive this email in error, please accept our apologies, we would be > > obliged if you would telephone our postmaster on +44 (0) 808 178 9652 or > > email postmas...@gamma.co.uk <javascript:;> > > > > Gamma Telecom Limited, a company incorporated in England and Wales, with > > limited liability, with registered number 04340834, and whose registered > > office is at 5 Fleet Place London EC4M 7RD and whose principal place of > > business is at Kings House, Kings Road West, Newbury, Berkshire, RG14 > 5BY. > > > > > > _______________________________________________ > > juniper-nsp mailing list juniper-nsp@puck.nether.net <javascript:;> > > https://puck.nether.net/mailman/listinfo/juniper-nsp > > > > -- > Regards, > > Mark L. Tees > _______________________________________________ > juniper-nsp mailing list juniper-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/juniper-nsp > -- Just my $.02, your mileage may vary, batteries not included, etc.... _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp