You cannot set the output power for these SFPs via software. The published operating range takes into account the manufacturing variabilities as well as output power over its operating temperature range. If you have too much power at the receive end of the link, you will need to install an optical attenuator to bring it within the receiver's operating input range.
Unfortunately, I don't have the manufacturer's testing reports to look at the actual output ranges being seen across the module's production. I would suspect the operating ranges are much tighter than the quoted specifications. However, manufacturer's also must meet the published IEEE minimum standards, which specify the optical parameters; which makes deploying the technology more consistent, interoperable and cost effective.
The other option for your application is to upgrade to a longer reach optical module. This will provide you with additional optical margin, but with an added cost for the link.
I agree with baileyshbr. One cannot generally control the SFP output (or sensitivity) via software. Optical platforms (e.g. ONS series) allow this, but that's one of the (many) reasons why they cost so much more than LAN switches.
If field measurements indicate you are outside of accepatable operating ranges, you either need to attenuate (using readily available optical atenuation patch cables) or increase launch power (using an optical amplifier or different launching optics).
You are correct that a given module's launch power should not have a 6 dB variability. It should actually vary within a much smaller range, due primarily to temperature of the components. So get some actual measurements of the ones) you install and then adjust accordingly if necessary.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
Im studying the 100-105 book by Odom and am currently on the topic of Port security. I purchased a used 2960 and I'm trying to follow a...
While deploying a number of 18xx/2802/3802 model access points (APs), which run AP-COS as their operating platform. It can be observed on some occasions that while many of their access points were able to join the fabric WLC withou...
I am going to design and build an LAN network under a tunnel underground with long distance between the switches.
I will have 2 Catalyst switches and 8 Industrial IE3000, and they will be connected with fiber.
For now I am planning on use Layer-2 s...