换了一台交换机，突然出现这个错误

cpx2004

[305919.872612] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305919.883446] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305919.893958] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305919.904256] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305919.914519] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305919.924812] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305919.935500] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305919.946265] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305919.956663] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305919.966956] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305924.874846] net_ratelimit: 1766 callbacks suppressed
[305924.874862] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305924.890772] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305924.901133] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305924.911700] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305924.921991] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305924.932313] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305924.942567] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305924.952859] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305924.963121] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305924.973360] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305929.880610] net_ratelimit: 2549 callbacks suppressed
[305929.880620] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305929.896460] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305929.906831] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305929.917228] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305929.927534] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305929.937872] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305929.948266] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305929.958623] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305929.969177] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[305929.980590] br-lan: received packet on eth0 with own address as source address (addr:00:a0:c9:29:86:dd, vlan:0)
[604837.789375] 8021q: adding VLAN 0 to HW filter on device eth2
[604837.881686] 8021q: adding VLAN 0 to HW filter on device eth2
[604840.705135] igb 0000:03:00.0 eth2: igb: eth2 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[604840.933074] IPv6: ADDRCONF(NETDEV_CHANGE): eth2: link becomes ready
[604846.076886] pppoe-wan: renamed from ppp0

换了一台POE交换机，openwrt里面出现这个错误，网络设备都没换，就换了交换机，难道交换机也有MAC地址？