[j-nsp] Difference MX DPC-R / DPCE-R

[Keegan Holley]

Many thanks.  It's been a while since I had to research them.  I guess my
memory isn't what I thought it was.

2011/12/12 Jonas Frey (Probe Networks) <jf at probe-networks.de>

> Keegan,
>
> all of the DPC- cards are EOL since long time (05/31/2009).
> Some of the DPCE- cards are also EOL already. For details here is a list
> (public):
> http://www.juniper.net/support/eol/mseries_hw.html
>
> Of course juniper wants to move customers to MPC hardware so more and
> more of the remaining DPCE- cards will go EOL soon.
>
> You probably also mixed up DPC-S and DPCE-X, which is the layer2 card.
>
> Best regards,
> Jonas
>
>
> Am Montag, den 12.12.2011, 11:42 -0500 schrieb Keegan Holley:
> > You can find the details on the juniper website.  Off the top of my head
> I
> > know there are fewer queues and you can't do layer-2 and layer-3 services
> > on the same blade.  There's a DPC-S that is layer 2 only.  In general you
> > should consider the non-e legacy.  I believe they might even be end of
> life
> > by now.  The DPC-E's are eventually going to be superseded by the MPC
> > because of the trio chipsets, but there will be several years before they
> > are dropped, if ever.
> >
> > 2011/12/12 Nicolaj Kamensek <nsp at accelerated.de>
> >
> > > Hello list,
> > >
> > > can anyone name the major differences between those modules? DPC are
> > > becoming available in the used market for small money and I am
> wondering if
> > > a DPC non-E is good enough for a classical access router environment
> with
> > > 30.000+ ARP entries and a growing number of IPv6 neighbours but nothing
> > > fancy overall.
> > > Since it's hard to find any facts about this:
> > >
> > > - does it matter memory-wise if the requirements above are applied to
> just
> > > one routed port or to multiple switched/routed ports?
> > > - do bundled links still double the amount of memory required?
> > >
> > >
> > > Thanks!
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