Does Wireshark support L4S protocol

asked 2021-11-12 13:02:54 +0000

X4000
1 ●1

Does Wireshark support analysis on the new Explicit Congestion Notification (ECN) Protocol for Very Low Queuing Delay (L4S)

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answered 2021-11-12 13:17:06 +0000

grahamb

flag of United Kingdom of Great Britain and Northern Ireland

23790 ●4 ●951 ●227 https://www.wireshark.org

updated 2021-11-13 13:31:35 +0000

Wireshark dissects and displays the ECN values including ECT(1) and CE but doesn't indicate that they mean that L4S is in use, nor is there any analysis with the TCP stream of L4S actions.

edit, fixed typo, ECN(1) -> ECT(1)

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L4S technology is enabled by the carrier, if the carrier advise L4S is enabled I assume that the ECN values are true.

Note: A sender that wishes a packet to receive L4S treatment as it is forwarded, MUST set the ECN field in the IP header (v4 or v6) to the ECT(1) codepoint.

X4000 ( 2021-11-12 17:20:50 +0000 )edit

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Does Wireshark support L4S protocol

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Does Wireshark support L4S protocol