[j-nsp] Fwd: Re: Juniper m320 to alcatel 7670 oc-48 ATM issu

[DARREN HARKINS, BLOOMBERG/ LONDON OF]

power outputs from both sides are -4dBm - have added 7dBm attenuaters to both 
legs - take the heat down a little (just in case it IS too hot).  no difference 
seen :-( Short fibres - both kit in same room - <<-1dBm across fibre 

concatenated - both ends :-)

Checked both ends ARE set to sonet  - luckily they are - or I would be sneaking 
away VERY shame faced at this time :-)

section and line errors appear non existant - so any advice on knobs I can turn 
will be gratefully rx'd to get rid of pesky rdi-p

Cheers - D

----- Original Message -----
From: Daniel Martin  <dmartin6 at us.ibm.com>
At:  3/17 16:30

first, make sure that both sides are the right "heat", meaning optical
power.  the fact that you are seeing sonet framing is a good indicator the
power budgets are ok.  if both are short reach optics then that is another
indicator, assuming they are in the same room, that you are ok.  if your
patch cable is really short, you might be borderline, blah blah.

next, are they both non concatenated interfaces?  oc48s i think usually
are.

now, if one is sdh and the other is sonet, that would explain some sonet
defect because sdh is pretty close.

next, i think there are a few sonet level knobs to turn.  and it looks,
from your letter the issue is a sonet level one.

prove to yourself its not any lower level stuff and then we'll talk about
the sonet stuff.  my buddy james cariello works for bloomberg and if by
helping you i'm helping him, i feel good.