MAKE 100m Full DUPLEX the DEFAULT OPTION, not half duplex
RFC3261:
Quote from: SteveInWA on March 31, 2019, 09:15:34 am
The current models are 100Mbps full-duplex by default.
I believe that the currently models use 802.3 clause 28 auto-negotiation (previously known as N-Way), so with the rare exception of 100/half switches/hubs (yes, I did actually have one), that will typically result in 100/Full. And all switches that support 1Gb/s are required to support auto-negotiation (even though 1G/half is extremely rare), and negotiation at higher speeds (2.5Gb/s to 40Gb/s) are full duplex only. Note there are exceptions for specific commercial (usually long-haul) transport gear (but anyone who has a 64 wavelength DWDM node in their residence should really fully understand what they are doing).
geeksalive:
Quote from: SteveInWA on March 31, 2019, 09:15:34 am
...you are posting in a five-year-old discussion that is no longer relevant, as it was about the now-discontinued 100 series. The current models are 100Mbps full-duplex by default.
This thread doesn't mention any model numbers, but the referenced thread mentions Obi100, Obi110 and Obi202. Though about seven years old, the Obi202 is still a current product.
I found this thread because I have a situation where I suspect that I'm getting only a 10 mbps ethernet connection, most likely due to a problem with my TP-Link router. But, frustratingly, neither the modem, the router, nor the Obi will tell me what speed they're actually running on their Ethernet ports. (My Obi is a 202.)
The Arris SB6121 modem comes closest. It shows a blue status light for 1 Gbps speed, or amber for 10 Mbps or 100 Mbps. The light is amber, but that doesn't tell me whether it's at 10 or 100. (Tellingly, if I connect the router directly to the modem, with no Obi202 between, the light is still amber, and it should be blue, because both the modem and the router are supposed to have 10/100/1000 mbps ethernet ports.)
Nothing should be running half-duplex anymore, but it occurred to me that if my router is negotiating the wrong speed for its ethernet ports, then it might also negotiate the wrong duplex. (Or maybe not -- I'm not an expert on this.)
SteveInWA:
I can't make it any simpler: this is a non-issue. The OBi 200, 202, 300 and 302 all run at 100Mpbs, full duplex. There are no settings that can alter that behavior.
What is the actual problem you are trying to solve, vs. just speculating on the Ethernet interface?
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