Bugzilla – Bug 2089
No actual check about SS state machine in SubscriberStationNetDevice::DoReceive
Last modified: 2015-04-20 11:45:13 EDT
This mistake surprises me a lot. In SubscriberStationNetDevice::DoReceive, you could find the following statement: NS_ASSERT_MSG (SS_STATE_WAITING_RNG_RSP, "SS: Error while receiving a ranging response message: SS state should be SS_STATE_WAITING_RNG_RSP"); If you're using ns-3.22, you can find it in line 920-921 and line 939-940 in ss-net-deivce.cc. It is obvious that the condition part of this assert is wrong, which makes this check always skipped. It should be corrected in this way: NS_ASSERT_MSG (GetState() == SS_STATE_WAITING_RNG_RSP, "SS: Error while receiving a ranging response message: SS state should be SS_STATE_WAITING_RNG_RSP"); However when the statement is corrected, programs in /wimax/examples, like wimax-ipv4.cc, will definitely throw this assert. There should be some problems in SS state machine elsewhere. Thanks Mr Tommaso Pecorella for supporting me opening this bug here. And here is where i posted this bug at the beginning. https://groups.google.com/forum/?hl=zh-TW#!topic/ns-3-users/8ZA7UZOpEG0 Hope this would help.
I attach changes you have purposed in the following patch: ofdm-fix-default-traces.patch
Created attachment 2025 [details] Perform actual check about SS state machine Perform actual check about SS state machine. Can be applied from the ns-3.22 home directory with patch -p2