Alternative to SQM for gaming: set your ethernet port to 100mbps

Installing and Using OpenWrt
1

I discovered this because of my faulty cable. That always went down to 100mbits. But I tried bufferbloat test when this happened, so i had 5ms-0-0 in waveform. Is there a way to sometimes set a particular lan port's speed to 100mbits? Like when needed?

2

You can do it on the client and the network switch / router side?
I'm assuming you can just use ethtool to do it on a DSA switch just like anything else? Never tested it on an openwrt device =P

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3

Maybe a strange idea, but what about simply replacing the broken cable?

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Yes, 100BASE-T only uses 4 conductors in your cable, while 1000BASE-T and above needs all 8 to work, but reducing the linkspeed to 100BASE-T doesn't really fix anything - but you have a 50:50 chance of it to 'work' by chance… The linkspeed reduction is not exactly beneficial to gaming latency either.

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4

I WD40'd it, it works fine! No need to replace lol :laughing:

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5

Mm. Reterminating anything less than cat6 is relatively straightforward so as long as you don't have a break in like the middle of the cable it should be relatively straightforward to fix.

Plus preterminated ethernet cables don't cost that much anyway. (As long as short)

DMM + terminating tool + connectors are also quite inexpensive.

6

I suck at reinserting those cables to that damn rj45 sockets. Its very hard! Even with the pressing tool thing. I once failed 10 times repeatedly. I swore to never do that again.
Btw the cable is inside the concrete. Cant do anything even if I want to.

7

I'd agree if you need to do cat6/cat6a terminations.

cat5/cat5a terminations at least to me are relatively straightforward. But I have at least hundreds under my belt and as a beginner I sucked =P

Plus if you forsake any kind of standard of workmanship, gigabit ethernet is very forgiving in terms of a large amount of straight, untwisted cable into the connector =P.

I've sometimes been game to use the old cable to pull new cable. And then I've snapped it inside. Then just had to pull the out the old cable and use wire rope or plastic cable feeder....

Or pull fibre as it's thinner..... But yeah that's unfortunate if it's literally concreted in. IMO flat conduit and weird meandering cable runs to the rescue =P.