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Description of problem: Duplicate copies of frames with VID 0 when running tcpdump. Version-Release number of selected component (if applicable): kernel-2.6.18-287.el6 How reproducible: 100% Steps to Reproduce: 1.Connect host A (ethX) to host B (ethY) back to back. 2. Configure a static ARP configuration for ethY on host A: run on host A: arp -s <IP of ethY> <MAC of ethY> tcpreplay -i ethX 8021q.pcap 3.run on host B tcpdump -i ethY Actual results: Receive duplicate copies of frames with VID 0 [root@hp-dl580g7-01 ~]# tcpdump -i eth1 -ne tcpdump: WARNING: eth1: no IPv4 address assigned tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth1, link-type EN10MB (Ethernet), capture size 96 bytes 04:14:06.042731 00:10:18:58:d0:4a > 00:10:18:58:d0:4a, ethertype 802.1Q (0x8100), length 102: vlan 0, p 4, ethertype IPv4, 192.168.0.2 > 192.168.0.1: ICMP echo request, id 32613, seq 1, length 64 04:14:06.042914 00:10:18:58:d0:4a > 00:10:18:58:d0:4a, ethertype 802.1Q (0x8100), length 102: vlan 0, p 4, ethertype IPv4, 192.168.0.2 > 192.168.0.1: ICMP echo request, id 32613, seq 1, length 64 Expected results: No duplicate frames. Additional info: the pcap file is in the attachement.
QE NOTE: There is no issue on kernel 2.6.18-254.el5 we think it is Bug 654878 indroduce the regression.
Created attachment 527910 [details] vlan0 tagged frame
Is this hw related?
(In reply to comment #5) > Is this hw related? I'm not sure about it.But I can reproduce it on the other system.So I think it may not hw related.