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A 5G NSA phone never attaches to 5G: reading an EN-DC attach from a real capture
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A 5G NSA phone never attaches to 5G: reading an EN-DC attach from a real capture

#5g #networking #wireshark #telecom
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2 min read
Two retransmissions, zero losses: RLC-NR acknowledged mode in a real 5G capture
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Two retransmissions, zero losses: RLC-NR acknowledged mode in a real 5G capture

#5g #networking #wireshark #telecom
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1 min read
One 5G frame, two security contexts — reading a decrypted NR attach
eventhelix profile

One 5G frame, two security contexts — reading a decrypted NR attach

#5g #networking #wireshark #security
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2 min read
Reading an IMS voice call out of a GTP-only 5G capture
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Reading an IMS voice call out of a GTP-only 5G capture

#5g #networking #wireshark #voip
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2 min read
F1-U flow control: how a 5G base station's two halves stay in step
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F1-U flow control: how a 5G base station's two halves stay in step

#5g #networking #wireshark #telecom
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3 min read
The Xn procedure that fetches a sleeping UE from another gNB
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The Xn procedure that fetches a sleeping UE from another gNB

#networking #5g #wireshark #telecom
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2 min read
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