[j-nsp] Logical systems on an M7i

[Doug Hanks]

15.  Should be fine for personal use.  It really just spawns another
instance of rpd.

Thank you,

-- 
Doug Hanks - JNCIE-ENT #213,  JNCIE-SP #875
Sr. Systems Engineer
Juniper Networks



On 2/29/12 9:51 AM, "Tom Storey" <tom at snnap.net> wrote:

>Hi everyone.
>
>Can anyone provide any pointers for the maximum number of logical
>systems one could expect to run on an M7i?
>
>As I understand it, each logical system has its own batch of processes
>running on the RE, so I am assuming the number is going to be some
>function of how much RAM you have on it.
>
>I am looking at using an M7i or two in a lab, with not very large
>tables (basically just the topology of the lab itself), but want to
>maximise the number of logical routers I can run to allow for
>vast/complex topologies. Ideally I would be able to run 20 logical
>systems.
>
>There are quite a few M7i's floating around on ebay with RE-400-768's,
>or even RE-400-256's (though RAM should be quite easy to upgrade.) The
>maximum number of logical systems per box is supposed to be 15, but
>with a RE-400-768, that gives roughly 50mb of RAM to each one,
>excluding the overhead for the system itself. How much RAM is required
>to run one? Can an RE-400 expand past 768mb?
>
>RE-850-1536 would give about double the RAM for each logical system
>and Im sure a decent boost in responsiveness due to faster CPU, but
>are about as rare as hens teeth with a price to match.
>
>Price is a big constraint since this will be for personal use, so
>while I know the MX80 is a nice box, it is out of my reach
>financially. :-)
>
>Thanks,
>Tom
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