Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
12.1.2, 13.0.0
Fixed In:
13.1.0, 13.0.0 HF1, 12.1.2 HF1
Opened: Feb 10, 2017 Severity: 3-Major
The original tuning values for the Finisar 100G LR4 optics don't support module tuning. You might see FCS errors.
Occasional packet loss at the 100G physical layer.
FCS errors can be observed with the shipping Finisar 100G LR4 tuning values.
Use 100G SR4 optics modules on the link if possible.
FCS errors no longer occur using the latest Finisar 100G LR4 tuning values. For information on installing and using the latest f5optics package (build 48.0 or later) that contains these tuning values, see F5 Platforms: Accessories (https://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/f5-plat-accessories.html).