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

Vincent Bernat bernat at luffy.cx
Wed Jul 30 09:12:44 UTC 2014


 ❦ 30 juillet 2014 09:53 +0200, Mark Tinka <mark.tinka at seacom.mu> :

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

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)?
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