[j-nsp] MX5-T-DC vs MX80-5G-DC-B

[Saku Ytti]

On 19 November 2011 10:21, magno <massimo.magnani at gmail.com> wrote:

> 2) the "T" versions (all the T versions, MX5, 10,40 and also MX80-T)
> supports Sync-E according with G.8261 / G.8262 standards;

All modular MX80 boxes should do SyncE. But IEEE 1588-2008 (PPT) needs
better oscillator and -T denotes this. I think the non-modular models
don't support even SyncE without -T model.

It really looks like design fault that they needed better oscillator
for the modular boxes, I'm pretty sure they planned to support PPT in
all modular boxes. Possibly original oscillator was of poorer specs
than they expected it to be? Since they're not exactly expensive
components, makes no sense to have model for SyncE and model for
SyncE+PPT.

MPCx and MPCxE difference also should be same, better oscillator for
PPT. (and supposedly 256M->512M FIB, i.e. 2M -> 4M routes or so).

-- 
  ++ytti