{"id":1177,"date":"2009-12-03T01:17:45","date_gmt":"2009-12-03T07:17:45","guid":{"rendered":"http:\/\/gregsowell.com\/?p=1177"},"modified":"2009-12-03T10:27:55","modified_gmt":"2009-12-03T16:27:55","slug":"mikrotik-newsletter-22","status":"publish","type":"post","link":"https:\/\/gregsowell.com\/?p=1177","title":{"rendered":"Mikrotik Newsletter 22"},"content":{"rendered":"<p><a href=\"http:\/\/www.mikrotik.com\/pdf\/newsletter22.pdf\">Here <\/a>is the letter in PDF format.<\/p>\n<p>They talk about the:<\/p>\n<li>750G and the 800, which I&#8217;ve already posted.\n<li>Foreign MUMs&#8230;videos should be up soon.\n<li>Spectrum analyzer, which we have spoken about.\n\t<\/li>\n<p>There is a new command that allows you to kill jobs other admins have left running:<\/p>\n<pre class=\"gs-code\"><code class=\"language-plaintext\">\/System script job print\r\n\/System script job remove numbers=1<\/code><\/pre>\n<p>There is also the addition of BFD:<\/p>\n<blockquote><p>\nBFD protocol for routing<br \/>\nStarting from RouterOS version v4.4, BFD is<br \/>\nsupported.<br \/>\nBFD is a protocol intended to detect faults in the<br \/>\nbidirectional path between two forwarding engines,<br \/>\nincluding physical interfaces, subinterfaces, data<br \/>\nlink(s), and to the extent possible the forwarding<br \/>\nengines themselves, with potentially very low latency.<br \/>\nIt operates independently of media, data protocols,<br \/>\nand routing protocols.<br \/>\nBidirectional Forwarding Detection (BFD):<br \/>\n* hello protocol for checking bidirectional neighbor<br \/>\nreachability;<br \/>\n* provides sub-second link failure detection support;<br \/>\n* not routing protocol specific, unlike protocol hello<br \/>\ntimers or such<br \/>\nFeatures supported:<br \/>\n* asynchronous mode (draft-ietf-bfd-base-09.txt)<br \/>\n* BFD timer and detection multiplier configuration per<br \/>\ninterface;<br \/>\n* enabling BFD for OSPF interfaces<br \/>\n* enabling BFD for BGP peers<br \/>\n* single hop IPv4 and IPv6 transport (draft-ietf-bfdv4v6-<br \/>\n1hop-10.txt)<br \/>\n* multihop IPv4 and IPv6 transport (draft-ietf-bfdmultihop-<br \/>\n08.txt)<br \/>\nUsing it:<br \/>\nOSPF:<br \/>\n\/routing ospf interface add interface=all use-bfd=yes<br \/>\nBGP:<br \/>\n\/routing bgp peer add remote-address=x.x.x.x remoteas=<br \/>\nxxxxx use-bfd=yes<br \/>\nBFD timer configuration:<br \/>\n\/routing bfd interface<br \/>\nBFD neighbor status:<br \/>\n\/routing bfd neighbor\n<\/p><\/blockquote>\n<p>Wikipedia has more on it <a href=\"http:\/\/en.wikipedia.org\/wiki\/Bidirectional_Forwarding_Detection\">here<\/a>.<br \/>\nIt appears to be a standalone mechanism that establishes a connection after a 3way handshake.  So, if you have two pieces of gear connected, this little protocol will connect between the gear and ensure the link is still up.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Here is the letter in PDF format. They talk about the: 750G and the 800, which I&#8217;ve already posted. Foreign MUMs&#8230;videos should be up\u2026<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1177","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/gregsowell.com\/index.php?rest_route=\/wp\/v2\/posts\/1177","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gregsowell.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gregsowell.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gregsowell.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/gregsowell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1177"}],"version-history":[{"count":6,"href":"https:\/\/gregsowell.com\/index.php?rest_route=\/wp\/v2\/posts\/1177\/revisions"}],"predecessor-version":[{"id":1190,"href":"https:\/\/gregsowell.com\/index.php?rest_route=\/wp\/v2\/posts\/1177\/revisions\/1190"}],"wp:attachment":[{"href":"https:\/\/gregsowell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1177"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gregsowell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1177"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gregsowell.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1177"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}