[j-nsp] System board memory expansion on M7i

[Rubens Kuhl Jr.]

Chris,

I always intended to fill-up RE memory with 768MB or more. My question
was about CFEB memory, not RE memory... I stated that it can be
ordered with 256 MB or 512 MB, but it's actually 128 MB or 256 MB. The
MEM-FEB-256-S is an upgrade to 256 MB, not a 256MB increase.


Rubens



On 11/1/07, Chris Kawchuk <ckawchuk at juniper.net> wrote:
> Hi Rubens,
>
> JunOS 9.0+ will require > 256MB of RAM on the routing engines to load
> properly. JunOS 9.0 is expected to be released in Q1 2008.
>
> Notes from the Juniper PSN:
> ---
> PSN Issue: The RE-400-256 Routing Engine contains only 256MB of main
> memory. Beginning with JUNOS release 9.0, this is insufficient to run
> JUNOS software; the minimum supported main memory configuration for
> JUNOS 9.0 and above is 768MB.
>
> Solution 1: The RE-400-256 Routing Engine is replaced with the
> RE-400-768. This new Routing Engine model includes 768MB of main memory,
> which meets the new minimum requirement.
>
> Solution 2: Implementation Customers with RE-400-256 Routing Engines are
> strongly urged to upgrade those Routing Engines to RE-400-768 before
> installing JUNOS release 9.0 or higher. This upgrade is accomplished by
> installing two MEM-RE-256-S memory upgrade modules.
> ---
>
> Hence, you will need to upgrade your RE-400's to 768 Mb of RAM on a
> go-forward basis in order to load the newer JunOS images starting in
> 2008. On a side note, I *always* suggest loading any router with the
> maximum amount of memory, since the Global Internet routing table isn't
> getting any smaller.... =)
>
> - Chris.
>
> ____________________________________
> Chris Kawchuk (ckawchuk at juniper.net)
> Systems Engineering, Service Providers
> Juniper Networks Inc., Canada
> local:     +1 (403) 470-8174
> toll-free: +1 (866) 470-8174
>
>
> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net
> [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Rubens Kuhl
> Jr.
> Sent: Thursday, November 01, 2007 9:27 AM
> To: juniper-nsp at puck.nether.net
> Subject: [j-nsp] System board memory expansion on M7i
>
> Hi.
>
> M7i routers can be ordered with 256 or 512 MB RAM system board memory;
> any guidelines on what usage scenarios would make 512MB desirable or
> even mandatory ?
>
> Our need is a Internet router with 3 full-routing transit feeds and a
> bunch of peering connections that made us specify more memory for the
> routing engine, but that may or may not impact forwarding engine
> requirements. AS and J-Flow are already included in the RFP.
>
>
> Rubens
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