{"id":7473,"date":"2021-02-08T22:20:02","date_gmt":"2021-02-09T03:20:02","guid":{"rendered":"https:\/\/www.rushworth.us\/lisa\/?p=7473"},"modified":"2021-02-26T10:26:49","modified_gmt":"2021-02-26T15:26:49","slug":"fedora-why-were-my-packets-dropped","status":"publish","type":"post","link":"https:\/\/www.rushworth.us\/lisa\/?p=7473","title":{"rendered":"Fedora &#8211; Why were my packets dropped?"},"content":{"rendered":"<p>We&#8217;ve been seeing dropped packets on one of our servers &#8212; that <em>usually<\/em> means more data is coming in than can be processed, but it&#8217;s nice to confirm rather than guess. The command &#8220;netstat -s&#8221; displays summary statistics that are nicely grouped into causes:<\/p>\n<pre>TcpExt:\r\n16 invalid SYN cookies received\r\n88 resets received for embryonic SYN_RECV sockets\r\n18 packets pruned from receive queue because of socket buffer overrun\r\n2321 ICMP packets dropped because they were out-of-window\r\n838512 TCP sockets finished time wait in fast timer<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>We&#8217;ve been seeing dropped packets on one of our servers &#8212; that usually means more data is coming in than can be processed, but it&#8217;s nice to confirm rather than guess. The command &#8220;netstat -s&#8221; displays summary statistics that are nicely grouped into causes: TcpExt: 16 invalid SYN cookies received 88 resets received for embryonic &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[47,294,1296,1294,1295],"class_list":["post-7473","post","type-post","status-publish","format-standard","hentry","category-system-administration","tag-fedora","tag-linux","tag-network-troubleshooting","tag-networking","tag-packet-loss"],"_links":{"self":[{"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=\/wp\/v2\/posts\/7473","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7473"}],"version-history":[{"count":1,"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=\/wp\/v2\/posts\/7473\/revisions"}],"predecessor-version":[{"id":7474,"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=\/wp\/v2\/posts\/7473\/revisions\/7474"}],"wp:attachment":[{"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7473"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rushworth.us\/lisa\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}