My fiber optical modem broadcasts a poem via ethernet frame 0x8300
Ah, this is used for loop detection by Huawei CPE.<p>Configuration reference:
<a href="http://huawei.communicationsmuseum.org.uk/MA5616/clireference/MA5616%20V800R312C00%20Command%20Reference%2011.chm/cmd/ring_check_private-ethtype.html" rel="nofollow">http://huawei.communicationsmuseum.org.uk/MA5616/clireferenc...</a>