[RLC-LTE] Sequence analysis problem? [closed]

asked 2024-05-23 18:55:41 +0000

DrMom
1 ●2

updated 2024-05-24 06:33:28 +0000

Hi, Could you please help to get the root cause of the following issue: UE has successfully finished the attach procedure. After some time UE goes to IDLE state, we can see RRCConnectionRelease in DL_DCCH. PCAP is OK. After Paging message, UE goes to CONNECTED state:

RRCConnectioRequest in UL_CCCH
RRCConnectionSetup in DL_CCCH

But starting from RRCConnectionSetupComplete all LTE RRC DL/UL_DCCH/NAS-EPS packets has rlc-lte.sequence-analysis.ok = False in RLC-LTE.

UE sends first packet with sn=0 for the new SRB (but it seems wireshark can't detect it), so expectedSequenceNumber != sequenceNumber. Does it work as expected?

Screen

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Closed for the following reason the question is answered, right answer was accepted by DrMom
close date 2024-07-02 15:07:55.429254

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Will be fixed in new release.

DrMom ( 2024-07-02 15:07:23 +0000 )edit

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Thanks for your answer. Will the fix be included to a new version of wireshark for Windows and tshark for Linux? Is it possible to send pcap via direct message or e-mail?

DrMom ( 2024-05-27 10:52:36 +0000 )edit

If/when fixed, it would be available in wireshark/tshark for all platforms. For sending the pcap, I don't really want to add my email address here - maybe best idea is to join Discord server and message me (Martin Mathieson) there?

MartinM ( 2024-05-28 13:49:15 +0000 )edit

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[RLC-LTE] Sequence analysis problem? [closed]

Closed for the following reason the question is answered, right answer was accepted by DrMom
close date 2024-07-02 15:07:55.429254

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[RLC-LTE] Sequence analysis problem? [closed] edit

Closed for the following reason the question is answered, right answer was accepted by DrMom close date 2024-07-02 15:07:55.429254

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1 Answer

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[RLC-LTE] Sequence analysis problem? [closed]

Closed for the following reason the question is answered, right answer was accepted by DrMom
close date 2024-07-02 15:07:55.429254