23 lines
1018 B
Markdown
23 lines
1018 B
Markdown
# Ethernet PAUSE frame spammer
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To debug home network problems:
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<https://lucumr.pocoo.org/2020/7/6/usb-c-network-hubs/>
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## Findings
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### TP Link TP-SG1008P switch
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TP-SG1008P is broken.
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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.
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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.
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### Netgear R6220 router
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R6220 (up to date firmware V1.1.0.114_1.0.1) is broken.
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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.
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### Netgear R6220 router
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R6220 (up to date firmware V1.1.0.114_1.0.1) is broken.
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Sending PAUSE frames from a device directly connected to this router's switch causes all devices on the home network to within about a minute.
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