<p><span class="h-card" translate="no"><a href="https://mastodon.social/@whitequark" class="u-url mention">@<span>whitequark</span></a></span> <span class="h-card" translate="no"><a href="https://hachyderm.io/@unlambda" class="u-url mention">@<span>unlambda</span></a></span> Wow.</p><p>Honestly I didn't even know it was possible to get FCSes in Wireshark because NICs normally drop frames with bad FCS so they don't show up in the capture.</p><p>Any time I've needed to troubleshoot FCS stuff I've slapped scope probes down on the *MII bus or the SFP diff pair or used my SFP/RJ45 mid-span tap fixtures then decoded in ngscopeclient</p>
