On Dec 12, 2013, at 8:11 PM, Keith <kwo...@citywest.ca> wrote: > Hi. > > We are doing a fiber link between us and another SP using CWDM. > > There is traffic flowing just fine at the 1310 wave, and have recently added a > 1471 wave. > > On the 1471 wave there are some problems with it. From our perspective, and we > have packet captured this, we are transmitting data to them, but they say they > are not seeing anything. We are receiving from them, and while we show that > packets are leaving our interface to them, they are getting nothing at all. > > There are good light levels between the two locations and do not understand > why they are not seeing traffic from us even though we are sending it. Our > packet > counters show we are transmitting to them and receiving from them. > > Is it possible to have RX and TX light and things appear to be ok, but have > the > RX on their side fubar in some way that it is not operating correctly in that > our > traffic is not reaching them?
Are you using fixed optics or tunables? Are transponders involved for the CWDM side then you have “client optics” at 850nm or 1310? Is there a filter involved? Do you have a light meter? What do the optics show for the various light levels and frequencies involved? - Jared
