the situation with one of the wireless PtP links at work:

[grawity@social.treehouse.systems]

the situation with one of the wireless PtP links at work:

[grawity@social.treehouse.systems]

(the issue isn't RF absorption or anything, the issue is badly secured Cat5 cable that's probably not rated for outdoors, dropping down to 10Mbps whenever it snows)

[grawity@social.treehouse.systems]

also Real Networking Guys kept telling me that Ethernet devices and switches do not renegotiate link speed when the ethernet link quality is bad. I am very sure they do. it might be a nonstandard feature but it exists

(iirc Intel drivers call it "downshifting")

[ignaloidas@not.acu.lt]

@grawity@social.treehouse.systems tbh it could just be a "link died, let's try negotiating again" cycle as well

[grawity@social.treehouse.systems]

@ignaloidas yeah but it specifically avoids advertising support for the highest link rate when that happens

(and once I bounce the switch port down/up, it negotiates 100M again)

[hoffmanlabs@infosec.exchange]

@grawity I chased that attenuation / corrosion problem with Cat 5E lines through a moist area.

Just damp, too. Not even outdoors.

The third replacement for that run got burial-grade gel-filled Cat 5E.

Didn’t bend at all well, but also haven’t had a fourth reoccurrence. (Yet.)

And yeah, the old and green and crusty Cat 3 running parallel to that same run also got re-strung with burial-grade.