[c-nsp] SFP/Transceiver Issue

[Justin M. Streiner]

On Tue, 8 Sep 2015, Mohammad Khalil wrote:

> I am trying to connect a link between my 6509 box and N5K box
> The link was functioning well , but now it is never up
> I have tried to change the SFP with no luck

What is the distance between the two devices?  Can you confirm the type of 
optics (they look like 10GBASE-ZR, but I want to be sure) as well?

As another poster mentioned, it looks like you are receiving a very hot 
signal on the 6509 side.  If you are using ZR optics and the distance 
between the two devices isn't long enough, you will need to do one of two 
things:

1. As the other poster mentioned, you can attenuate the signal.  Chances 
are you will need to insert attenuators in-line on the transmit side of 
both ends.

2. Replace the optics with something that's more appropriate for the link 
length you're using, such as LR or ER optics.

jms