[173644] in North American Network Operators' Group

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Re: Upgrade Path Options from 6500 SUP720-3BXL for Edge Routing

daemon@ATHENA.MIT.EDU (Vincent Bernat)
Wed Jul 30 05:12:55 2014

X-Original-To: nanog@nanog.org
From: Vincent Bernat <bernat@luffy.cx>
To: Mark Tinka <mark.tinka@seacom.mu>
Date: Wed, 30 Jul 2014 11:12:44 +0200
In-Reply-To: <201407300953.27538.mark.tinka@seacom.mu> (Mark Tinka's message
 of "Wed, 30 Jul 2014 09:53:23 +0200")
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org

 =E2=9D=A6 30 juillet 2014 09:53 +0200, Mark Tinka <mark.tinka@seacom.mu>=
=C2=A0:

> IOS XR on the CRS and ASR9000 is based on QNX, which suffers=20
> from being only a 32-bit kernel. So even if the hardware=20
> will ship with >4GB of RAM, the OS will only see 4GB (I have=20
> 12GB in my CRS's and 8GB on my ASR9001's).=20

What's the point of shipping more memory then? Maybe the OS can only
address 4GB per process but is able to use up to 64GB in total (PAE)?
--=20
Use self-identifying input.  Allow defaults.  Echo both on output.
            - The Elements of Programming Style (Kernighan & Plauger)

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