{"id":388,"date":"2016-12-14T18:30:19","date_gmt":"2016-12-14T18:30:19","guid":{"rendered":"https:\/\/www.fastinternetblog.uk\/?p=388"},"modified":"2016-12-14T18:30:19","modified_gmt":"2016-12-14T18:30:19","slug":"sure-guernsey-some-unusual-latency-packet-loss","status":"publish","type":"post","link":"https:\/\/www.fastinternetblog.uk\/?p=388","title":{"rendered":"Sure Guernsey – Some unusual latency & packet loss"},"content":{"rendered":"

I’ve been getting some unusual readings on my latency monitoring graphs these past 2 days.<\/p>\n

I was getting this on Tuesday:<\/p>\n

\"BQM-1\"<\/a><\/p>\n

And then I was getting this today:<\/p>\n

\"BQM-2\"<\/a><\/p>\n

It’s a mixture of increased latency and, in some cases, moderate packet loss!<\/p>\n

I’ve restarted the router and it doesn’t seem to have helped. Looking at the DSL stats, there have been only a small number of FEC events (which is expected – the error correction is simply doing what it’s meant to), and no other stats to indicate line instability (SNR margin sitting at a comfortable 16dB).<\/p>\n

So this leads me to a few potential conclusions: There is some upstream issue with Sure’s network; perhaps some sort of DDoS attack against my ip address(?); or perhaps a fault with my router?<\/p>\n

I don’t think it’s traffic at my end, since that would involve saturating the connection for long periods of time (I mean, 4 hours at 50Mbps continuously is a 90GB download!). Also the shape of the graph, particularly the top one, makes me quite suspicious (it’s a curve, rather than a distinct block).<\/p>\n","protected":false},"excerpt":{"rendered":"

I’ve been getting some unusual readings on my latency monitoring graphs these past 2 days. I was getting this on Tuesday: And then I was getting this today: It’s a mixture of increased latency and, in some cases, moderate packet … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[6,11,12,26,25,27],"class_list":["post-388","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-broadband","tag-guernsey","tag-internet","tag-superfast-broadband","tag-sure","tag-vdsl"],"_links":{"self":[{"href":"https:\/\/www.fastinternetblog.uk\/index.php?rest_route=\/wp\/v2\/posts\/388","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fastinternetblog.uk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fastinternetblog.uk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fastinternetblog.uk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fastinternetblog.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=388"}],"version-history":[{"count":1,"href":"https:\/\/www.fastinternetblog.uk\/index.php?rest_route=\/wp\/v2\/posts\/388\/revisions"}],"predecessor-version":[{"id":391,"href":"https:\/\/www.fastinternetblog.uk\/index.php?rest_route=\/wp\/v2\/posts\/388\/revisions\/391"}],"wp:attachment":[{"href":"https:\/\/www.fastinternetblog.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fastinternetblog.uk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=388"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fastinternetblog.uk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=388"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}