Optics and Optical Networking

Cisco Optics-to-Device Compatibility Matrix says that GLC-SX-MMD is compatible with C8200-1N-4T from IOS XE 17.5.1 https://tmgmatrix.cisco.com/?tpid=201&npid=4582 But in my case it is not. C8200#sh verCisco IOS XE Software, Version 17.06.03a C8200#sh...

Hola Comunidad Cisco. Alguien sabrá por qué un C9200L podría no detectar las interfaces SFP.Coloco los mismos SFP (GLC_LH-SMD) en un 2960 y los ve inmediatamente. Atento a sus feedback, muchas gracias.

I am looking for functioning GPON/XGSPON SFP ONT sticks with MAC for Cisco routers. Unfortunately, Cisco itself does not offer such modules yet, and my attempts with third-party modules have not been very successful so far (despite "service unsupport...

Hello Colleagues,I have some question from the deep past. We have such situation where we need to relocate couple old 4506-E switches with Sup6L-E onboard. Today we have in use twingig convertors and regulars GLC-SX-MMD for MM but in the new place w...

hii have fibers with cisco transeiver 1000base-sx 30-1299-3 850nm. they works well when they are plugged in nexus-3548 switch.i try to use the same fibers plugged in a new cbs220-24P-4X switch, but now it does not workdo you know why ?thanks

Hi All, we have around 8 ports on the C9500 that have the copper 1gb SFP's plugged in, when connecting copper cables solid green light is shown and no activity even for internet in, lights are on but no one is home. Is there any specific config neede...

I've gotten all the other ports (10g and 100g) to correctly turn green when an sfp or qsfp is plugged in and doing "show controllers optics x/x/x/x" shows that the laser state is on so i know that its linking. For the 25g ports the led stays yellow w...

What does the term ''channel'' mean with SFP+ mean?  channelling them like ether channel?just to give an idea, SFP+ plus gives 40G with in single channel. 

OLTS looks like cheap device to measure optical attenuation. Is it worth buying it and using it at work with SM cables?

 SFP ZX modules with high optical power and may be hazardous to the eyes if you accidentally look at them.If you are using it in Production, do you have special protection rules ? like always do shutdown interface before disconnect or connect patch c...

I have the following issue.There's a splitter connected on a CGP-OLT-8T on port 0/1, after which there are ONT devices. The ONT devices are registered manually with profiles. The issue is, that it doesn't show more than 50 ONT's. #sh ont brief interf...

Good day,I have a Cisco 9300L-24T-4X switch. It has 4 x10G uplinks. I wanted to link it to a host with a 10G baseT gbic transceiver. I purchased a Cisco SFP10G-T-X transceiver. But the switch gives an error of "The inserted SFP module with interface ...

I'm looking for compatibility information on this part number.  It's not listed under Cisco TMG.  Thank you.