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The ovs is connected to ryu.\r\n\r\nWhen the UE is trying to attach it generates an LLC message (Supervisory frame). In this frame the padding bits (5-8) are set to 1. The IEEE 802.2 (https://standards.ieee.org/getieee802/download/802.2-1998.pdf page 46) describes that it should be set to 0.\r\n\r\nI understand that the IEEE specification is the \"law\", but every first time I connect those devices ryu is causing an exception.\r\n\r\niOS device:\r\n![llc_pull_request_1](https://cloud.githubusercontent.com/assets/3919401/7229852/a32cbabc-e768-11e4-98e9-f5c7c306cd76.png)\r\nAndroid 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