{"id":452,"date":"2010-03-01T22:35:40","date_gmt":"2010-03-01T21:35:40","guid":{"rendered":"http:\/\/ccievoice.ksiazek.be\/?p=452"},"modified":"2025-01-11T18:28:04","modified_gmt":"2025-01-11T17:28:04","slug":"efficiency-bandwidth-tools","status":"publish","type":"post","link":"https:\/\/collaboration.ksiazek.be\/?p=452","title":{"rendered":"Efficiency Bandwidth Tools"},"content":{"rendered":"<p>To make more efficient the use of your bandwidth on slow-speed links, we can use 2 types of compression.<\/p>\n<blockquote>\n<ul>\n<li>Payload compression : Reduces the payload size, using approaches such as STAC, predictor or MPPC<\/li>\n<li>Header compression : Reduces the size of the TCP and RTP headers<\/li>\n<\/ul>\n<\/blockquote>\n<p>The goal of compressions technologies is to increase the throughput over a WAN link while we are reducing the delay.<\/p>\n<p>However , especially with payload compression approaches , the time that is required by lower-end routers to run the compression algorithm can increase the overall delay so in order to avoid this , you still can equip your router with a compression module like the CAIM.<\/p>\n<p>With header compression , a header typically is reduced from approximately 40 bytes to 3 up to 5 bytes for TCP header compression or 2 up to 4 bytes for RTP header compression.<\/p>\n<p>However, the routers technically are not doing real compression. Rather, these routers cache information that does not change during a conversation, such as source and destination IP address and TCP\/UDP port numbers. The compressed header then carries such information as UDP checksums and a session context ID (CID) which identifies which flow the packet is a part of.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>To make more efficient the use of your bandwidth on slow-speed links, we can use 2 types of compression. Payload compression : Reduces the payload size, using approaches such as STAC, predictor or MPPC Header compression : Reduces the size of the TCP and RTP headers The goal of compressions technologies is to increase the [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[30,1,80,33],"tags":[59,140,81],"class_list":["post-452","post","type-post","status-publish","format-standard","hentry","category-ios","category-non-classe","category-qos","category-written-theory","tag-ccie-voice-written","tag-header-compression","tag-qos"],"_links":{"self":[{"href":"https:\/\/collaboration.ksiazek.be\/index.php?rest_route=\/wp\/v2\/posts\/452","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/collaboration.ksiazek.be\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/collaboration.ksiazek.be\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/collaboration.ksiazek.be\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/collaboration.ksiazek.be\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=452"}],"version-history":[{"count":1,"href":"https:\/\/collaboration.ksiazek.be\/index.php?rest_route=\/wp\/v2\/posts\/452\/revisions"}],"predecessor-version":[{"id":4452,"href":"https:\/\/collaboration.ksiazek.be\/index.php?rest_route=\/wp\/v2\/posts\/452\/revisions\/4452"}],"wp:attachment":[{"href":"https:\/\/collaboration.ksiazek.be\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=452"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/collaboration.ksiazek.be\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=452"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/collaboration.ksiazek.be\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=452"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}