Hi, I'm having difficulties in connecting such SFP module to a PTT device - at&t canoga perkins 9145 - at 100Mbps speed. Found documentation that such fiber module does not support 100Mbps but only 1000Mbps... not sure however if there's a config mistake, as follows:
You are correct, an optical SFP will not negotiate its speed parameter. Their speed is fixed.
You didn't mention which Cisco switch you were operating. If your switch is compatible (compatibility document link below) with SFP part number GLC-GE-100FX, then this SFP module will allow you to operate a 100Mbps link when installed in your switches GE SFP slot.
Thanks Tom. Actually I've a CS3845 router. As per the compatibility info link you've shared with me, this 100FX module isn't compatible. I'm afraid that with this setup - telco device with a MM fiber connection at 100Mbps trying to establish with my 3845 optical SFP - I wont be able to achieve unless I change it to a SFP copper on both sides, change the 'media-type' interface parameter and then adjust the speed. Does it make sense or do you have any other tip ?
If I understand your situation, the distance between your 3845 and the telco device is short enough to use UTP? If so, then connecting the two devices using FE over copper would seem most practical and sound.
If you need to use fiber for the reach, then you could use media converters to convert from copper to fiber. You would still have to change the 3845 SFP to copper (config'd for FE). The downside to this is its another piece of hardware that can fail.
3845/Copper SFP FE ----> FE Copper/Media Converter/FE Fiber ----------> FE fiber/Telco device
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.