[j-nsp] MX960 with 3 RE's?

[Colton Conor]

Mark,

Thanks for the information.What is the smallest non-DPC 10G card you would
recommend? I am probably going to have a hard to getting away with DPC due
to the cost. A 4 port 10G DPC card can be had for under $1K on the used
market.

On Wed, Jan 13, 2016 at 11:45 PM, Mark Tinka <mark.tinka at seacom.mu> wrote:

>
>
> On 14/Jan/16 02:07, Colton Conor wrote:
>
> Well it would be RE-S-2000-4096 running the JTAC Recommended Junos
> Software Version Junos 13.3R8 plus the standard (not enhanced SCBs).
>
> I know more memory and 64 bit is usually better, but how does this help in
> Junos? From past threads, we have concluded that Junos is currently single
> thread/core in most all situations, and the RE-S-2000-4096 is faster than
> the RE in a MX80 and MX104. What does the more cores and quadruple memory
> get you in the RE-S-1800X4-16G that you can not do on a RE-S-2000-4096?
>
> The use case for this box would be full BGP tables and routing with 4+
> providers on 10G ports, plus a couple of ports to a peering exchange.
>
>
> As others running the RE-S-2000 have confirmed, you can run a recent Junos
> release on that RE today, which is great.
>
> The 64-bit RE gives you more memory to hold more routes, but if you only
> need 4x full BGP feeds today, the RE-S-2000 should be fine. Naturally, the
> newer RE will provide longer-term support for later Junos releases
> (especially with the architectural differences between Junos 15 and
> anything else before it). But in your case, the RE-S-2000 should be just
> fine.
>
> I am wondering what features the DPC's lack in this situation.
>
>
>     - Lots of QoS limitations on the DPC compared to Trio.
>     - Multicast restrictions on the DPC vs. the Trio.
>     - No support for inline jflow on the DPC.
>     - Differences in Tunnel PIC support on the DPC vs. the Trio (Trio is
> more flexible).
>     - There may also be differences in Carrier Ethernet capabilities.
>
> I think you can get away with the RE-S-2000, but if you can, stay away
> from the DPC, just for peace of mind.
>
> Mark.
>