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Asger Juul Brunshøj 2024-09-28 21:43:48 +02:00
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To debug home network problems:
<https://lucumr.pocoo.org/2020/7/6/usb-c-network-hubs/>
## Findings
### TP Link TP-SG1008P switch
TP-SG1008P is broken.
Spamming PAUSE frames from a device behind this switch causes the entire network (or at least everything connected through this switch) to go down within about a minute.
Maybe the switch has a single buffer and as it can't send to our device (PAUSE), it also can't send to any other device (head-of-line blocking essentially) and so everything breaks down.
### TP Link TL-SG105 switch
TL-SG105 is broken.
Spamming PAUSE frames from a device behind this switch causes the entire network (including stuff connected upstream from this switch) to go down within about a minute.
### Netgear R6220 router
R6220 (up to date firmware V1.1.0.114_1.0.1) is broken.
Spamming PAUSE frames from a device directly connected to this router's switch causes connectivity on all devices on the home network to fail within about a minute.
### Deco M5
In access point mode, (firmware 1.7.6).
Works without issue.
Spamming PAUSE frames from a device directly connected to the Deco's switch does not produce any problems.