{"id":1377,"date":"2016-09-15T14:44:17","date_gmt":"2016-09-15T14:44:17","guid":{"rendered":"http:\/\/www.mtin.net\/blog\/?p=1377"},"modified":"2016-09-15T14:44:17","modified_gmt":"2016-09-15T14:44:17","slug":"soft-reconfiguration-inbound","status":"publish","type":"post","link":"http:\/\/www.mtin.net\/blog\/soft-reconfiguration-inbound\/","title":{"rendered":"Soft Reconfiguration inbound"},"content":{"rendered":"<p>Several people have been asking what soft Reconfiguration Inbound is on a BGP peer.<\/p>\n<p>In the dark days of BGP you had to tear down the BGP session and do a full reestablishment in order to bring it up. \u00a0What soft reconfiguration does is copies of all routes received (this is why it is called inbound) are stored separately from the regular BGP table. \u00a0 When a change is made the new change is applied to the stored copy of the BGP routes.<\/p>\n<p>Disadvantage? This takes up memory because you have two files basically.<\/p>\n<p>So how is this different than route refresh described in <a href=\"https:\/\/tools.ietf.org\/html\/rfc2918\">RFC 2918<\/a>? This is a standard, with an RFC unlike Soft Reconfiguration inbound, which is a Cisco thing. Route refresh\u00a0asks the peer to resend all its routes.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Several people have been asking what soft Reconfiguration Inbound is on a BGP peer. In the dark days of BGP you had to tear down the BGP session and do a full reestablishment in order to bring it up. \u00a0What soft reconfiguration does is copies of all routes received (this is why it is called [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[212,17],"tags":[13,362,360,361,363],"jetpack_publicize_connections":[],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p6VLMf-md","jetpack-related-posts":[{"id":452,"url":"http:\/\/www.mtin.net\/blog\/rfcs-you-need-to-know-rfc-2796-bgp-route-reflection\/","url_meta":{"origin":1377,"position":0},"title":"RFC&#8217;s you need to know: RFC 2796 BGP Route Reflection","author":"j2sw","date":"November 29, 2015","format":false,"excerpt":"https:\/\/tools.ietf.org\/html\/rfc2796 Currently in the Internet, BGP deployments are configured such that all BGP speakers within a single AS must be fully meshed and any external routing information must be re-distributed to all other routers within that AS. For n BGP speakers within an AS that requires to maintain n*(n-1)\/2 unique\u2026","rel":"","context":"In &quot;BGP&quot;","block_context":{"text":"BGP","link":"http:\/\/www.mtin.net\/blog\/category\/networking\/bgp\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":284,"url":"http:\/\/www.mtin.net\/blog\/helpful-mikrotik-bgp-route-print\/","url_meta":{"origin":1377,"position":1},"title":"Helpful Mikrotik BGP route print","author":"j2sw","date":"May 2, 2015","format":false,"excerpt":"\/ip route print where received-from=<PEERNAME> Replace <PEERNAME> with the name of one of your peers to show the routes received from that particular BGP peer.","rel":"","context":"In \"advertisments\"","block_context":{"text":"advertisments","link":"http:\/\/www.mtin.net\/blog\/tag\/advertisments\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2670,"url":"http:\/\/www.mtin.net\/blog\/bgp-monitoring-rfc-7854\/","url_meta":{"origin":1377,"position":2},"title":"BGP Monitoring RFC 7854","author":"j2sw","date":"December 4, 2018","format":false,"excerpt":"https:\/\/tools.ietf.org\/html\/rfc7854 This document defines the BGP Monitoring Protocol (BMP), which can be used to monitor BGP sessions. BMP is intended to provide a convenient interface for obtaining route views. Prior to the introduction of BMP, screen scraping was the most commonly used approach to obtaining such views. The design goals\u2026","rel":"","context":"In &quot;BGP&quot;","block_context":{"text":"BGP","link":"http:\/\/www.mtin.net\/blog\/category\/networking\/bgp\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.mtin.net\/blog\/wp-content\/uploads\/2018\/05\/atasco.jpg?fit=1122%2C711&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.mtin.net\/blog\/wp-content\/uploads\/2018\/05\/atasco.jpg?fit=1122%2C711&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.mtin.net\/blog\/wp-content\/uploads\/2018\/05\/atasco.jpg?fit=1122%2C711&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.mtin.net\/blog\/wp-content\/uploads\/2018\/05\/atasco.jpg?fit=1122%2C711&resize=1050%2C600 3x"},"classes":[]},{"id":443,"url":"http:\/\/www.mtin.net\/blog\/how-does-bgp-select-which-route\/","url_meta":{"origin":1377,"position":3},"title":"How does BGP select which route?","author":"j2sw","date":"November 26, 2015","format":false,"excerpt":"BGP can be a complex and almost mystical protocol. For those of you who are trying to determine how BGP selects which route here is your guide. Before we get into it a couple of things to keep in mind. First, BGP is not a multipath routing protocol. This is\u2026","rel":"","context":"In &quot;BGP&quot;","block_context":{"text":"BGP","link":"http:\/\/www.mtin.net\/blog\/category\/networking\/bgp\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1497,"url":"http:\/\/www.mtin.net\/blog\/bgp-local-pref-and-you\/","url_meta":{"origin":1377,"position":4},"title":"BGP local Pref and you","author":"j2sw","date":"January 7, 2017","format":false,"excerpt":"One of the bgp topics that comes up from time to time is what does \"bgp local-pref\" do for me? The short answer is it allows you to prefer which direction a traffic will flow to a given destination. How can this help you? Well before we start, remember the\u2026","rel":"","context":"In &quot;BGP&quot;","block_context":{"text":"BGP","link":"http:\/\/www.mtin.net\/blog\/category\/networking\/bgp\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1309,"url":"http:\/\/www.mtin.net\/blog\/how-i-learned-to-love-bgp-communities-and-so-can-you\/","url_meta":{"origin":1377,"position":5},"title":"How I learned to love BGP communities, and so can you","author":"j2sw","date":"July 6, 2016","format":false,"excerpt":"BGP communities can be a powerful, but almost mystical thing. \u00a0If you aren't familiar with communities start here at Wikipedia. \u00a0For the purpose of part one of this article we will talk about communities and how they can be utilized for traffic coming into your network.\u00a0Part two of this article\u2026","rel":"","context":"In &quot;BGP&quot;","block_context":{"text":"BGP","link":"http:\/\/www.mtin.net\/blog\/category\/networking\/bgp\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"http:\/\/www.mtin.net\/blog\/wp-json\/wp\/v2\/posts\/1377"}],"collection":[{"href":"http:\/\/www.mtin.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.mtin.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.mtin.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.mtin.net\/blog\/wp-json\/wp\/v2\/comments?post=1377"}],"version-history":[{"count":1,"href":"http:\/\/www.mtin.net\/blog\/wp-json\/wp\/v2\/posts\/1377\/revisions"}],"predecessor-version":[{"id":1378,"href":"http:\/\/www.mtin.net\/blog\/wp-json\/wp\/v2\/posts\/1377\/revisions\/1378"}],"wp:attachment":[{"href":"http:\/\/www.mtin.net\/blog\/wp-json\/wp\/v2\/media?parent=1377"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.mtin.net\/blog\/wp-json\/wp\/v2\/categories?post=1377"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.mtin.net\/blog\/wp-json\/wp\/v2\/tags?post=1377"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}