802.11eの動作がちょっとおかしいではないかと思いますので，質問させていただきます．

802.11eのAC[0]を使ってシミュレーションを行っていましたが，
（*.appファイルでのPRECEDENCEを全部“0”と設定しています）
結果のqualnet.statファイルを見てみますと，AC[3]のqueueにもパケットが入っていて，処理されているみたいです．これはなぜなのでしょうか．
私のシナリオファイルを添付させていただきます．
使っているqualnetのバージョンは5.1です．

grep AC[\[]3[]] qualnet.statの表示結果は以下のようになります．
1, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 496
1, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 496
2, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 32
2, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 32
3, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 32
3, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 32
4, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
4, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
5, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
5, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
6, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 32
6, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 32
7, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
7, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
8, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 32
8, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 32
9, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
9, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
10, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
10, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
11, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
11, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
12, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
12, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
13, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 32
13, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 32
14, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
14, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
15, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
15, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
16, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
16, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
17, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 32
17, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 32
18, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
18, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
19, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 32
19, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 32
20, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
20, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
21, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
21, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
22, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
22, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
23, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 32
23, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 32
24, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
24, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
25, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
25, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
26, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
26, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
27, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
27, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
28, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
28, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
29, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
29, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
30, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
30, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33
31, , [0], MAC, 802.11eMAC,AC[3] Total Frame Queued = 33
31, , [0], MAC, 802.11eMAC,AC[3] Total Frame de-Queued = 33

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