[157540] in North American Network Operators' Group
Re: IOS architecture
daemon@ATHENA.MIT.EDU (Lukasz Bromirski)
Sun Oct 28 09:42:45 2012
From: Lukasz Bromirski <lukasz@bromirski.net>
In-Reply-To: <CAB0xJrNro2Pq4AWRURpepC2Pp+2nB8UJDgMRE818TGEc-ufdMw@mail.gmail.com>
Date: Sun, 28 Oct 2012 14:41:46 +0100
To: Nanog <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Oct 27, 2012, at 11:00 PM, Pete Lumbis <alumbis@gmail.com> wrote:
> You might want to take a look at the CEF book, which expands on this
> http://www.amazon.com/Cisco-Express-Forwarding-ebook/dp/B0015V9DQU/
>=20
> both of these are still very accurate on how IOS operates today. The
> only major changes with IOS-XE is that IOS is now a process and packet
> forwarding is handled in hardware instead of software.
On the IOS-XE it's no longer single process, when you're running in the
modular version. It's getting complicated.
> For NX-OS and IOS-XR the software/operating system is wildly different
> and I think there is a definite gap in literature out there.
For now, there's Cisco Live and techtorials about architecture and
inner works. There will be a book, or two :)
--=20
"There's no sense in being precise when | =C5=81ukasz =
Bromirski
you don't know what you're talking | jid:lbromirski@jabber.org
about." John von Neumann | http://lukasz.bromirski.net=
