Bug 2655

Summary:	A-MPDU simulation using TCP sometimes fails with message "Packet has no Traffic ID"
Product:	ns-3	Reporter:	sebastien.deronne
Component:	wifi	Assignee:	sebastien.deronne
Status:	RESOLVED FIXED
Severity:	major	CC:	ns-bugs
Priority:	P3
Version:	ns-3-dev
Hardware:	All
OS:	All
Attachments:	Forbid to send ACK using A-MPDU

Description sebastien.deronne 2017-02-10 06:51:23 UTC

I will provide simulation script a bit later, but I encounter quite often this failure when I run A-MPDU examples with TCP traffic:

msg="Packet has no Traffic ID", file=../src/wifi/model/qos-utils.cc, line=163
terminate called without an active exception

I am not sure whether this is a really wifi issue or not (not seen with UDP), I will investigate and re-assign if needed.

Comment 1 sebastien.deronne 2017-02-11 09:50:46 UTC

Created attachment 2782 [details]
Forbid to send ACK using A-MPDU

This is well a wifi bug, caused in different simulation scenarios using TCP (but maybe some UDP cases as well), and occurs when it tries to send an ACK using ... A-MPDU! 
Fix is in attachment.

Comment 2 sebastien.deronne 2017-02-11 09:51:06 UTC

Should be delivered to the mainstream ASAP

Comment 3 sebastien.deronne 2017-02-11 15:14:23 UTC

Fixed in changeset 12679:b60b7708bd2c