[j-nsp] juniper router reccomendations

sthaug at nethelp.no sthaug at nethelp.no
Thu Jul 28 12:35:10 EDT 2016


> Some folks helpfully suggested using strategies to to decrease the 
> required size of the FIB, potentially meaning a lower box could do that 
> job. That has some merit, as the OP was right in that for this job I 
> don't really care about timbuktu more as whats 'close' to my two ip 
> transit providers. I know nothing of juniper and I'm just wondering if 
> MX80 is enough box for this or if I need to go higher up in the food 
> chain. The one iptransit provider at my 'A' location appears to 
> originate about 20 networks from various netblocks and this would be 
> easy to statically enter into config while accepting defaults from both, 
> achieving the same net result.

20 prefixes is such a small number that it's almost irrelevant. The
relevant question is more likely to be: Will you be taking full 
routes in FIB? RIB? Both?

If you're considering MX80 I would seriously look at MX104 instead.
Same total bps/pps capacity but more expandability, 4 GB RE memory
instead of 2 GB, and possibility of dual RE.

If you're going to have full routes in RIB, the 2 GB RE memory of
MX80 will be a limitation soon.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no


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