[j-nsp] Juniper MPC2E-3D-NG-R-B vs MPC2E-3D-R-B

[Pavel Lunin]

Hi,

If memory serves, MPC2-NG is much like MPC3-NG: one MPC5-like PFE inside. A
good question is what is the difference between the MPC2-NG and MPC3-NG...
I'll let the astute readers figure it out on their own.

Old MPC2 non-NG is the "first generation Trio"-based card: two PFE, one per
MIC. There is no much sens in buying it today, it's a 10-years old thing.

E vs. non-E - Saku is (as always) right, the non-E was the very very first
generation of MPC cards, which had a kind of broken oscillator (only
matters for SyncE applications). So we normally omit the E in every day
language today, as all MPC cards are E since many many years.

And yeah, "HQoS" (aka -Q/EQ version of cards) has nothing to do with the
NG/non-NG story. Most cards have a -Q version to support "HQoS". Shortly
speaking, it's for those folks who don't know what to do with their
employer's money.

--
Pavel

сб, 20 окт. 2018 г., 10:37 Saku Ytti <saku at ytti.fi>:

> Hey Rolf,
>
> No that's not it, that's difference between Q and non Q card. All
> three generations had HQoS support:
>
> 1) MPC   (Trio 1.0)
> 2) MPCE
> 3) MPCE--NG
>
> I'm not sure about difference, MPCE I believe got better oscillator
> for timing and I think more linecard cpu dram for higher subscriber
> scale. I don't know what NG got.
>
> I wouldn't be surprised if they were also respins with newer Trio, as
> cost reduction (E==1.5? NG==2.0?).
>
> I'd also love to have definitive answer of changelog between each
> generation.
> On Fri, 19 Oct 2018 at 22:34, "Rolf Hanßen" <nsp at rhanssen.de> wrote:
> >
> > Hello,
> >
> > as far as I see the feature difference is HQoS:
> >
> https://www.juniper.net/documentation/en_US/release-independent/junos/topics/reference/general/mpc-mx-series-mpc2e-features.html
> >
> > regards
> > Rolf
> >
> > > Hi list,
> > >
> > > Can anyone tell me the differences in scaling or features of the
> > > MPC2E-3D-NG-R-B vs MPC2E-3D-R-B.   I know the NG requires an SBCE2.
> > >
> > > Thanks,
> > >
> > > Kevin
> > > _______________________________________________
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>
> --
>   ++ytti
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