Control Messages for Generic UDP Encapsulation
draft-herbert-intarea-gue-ctrl-messages-00

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Internet-Draft                                                T. Herbert
Intended status: Standard track                               Quantonium
Expires April 4, 2019         

                                                         October 1, 2018

             Control Messages for Generic UDP Encapsulation
               draft-herbert-intarea-gue-ctrl-messages-00

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Internet Draft            GUE Control Messages           October 1, 2018

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Herbert                   Expires April, 2019                   [Page 2]
Internet Draft            GUE Control Messages           October 1, 2018

Abstract          

   This specification defines a set of basic control messages for
   Generic UDP Encapsulation (GUE). One pair of messages provides a
   means to query the GUE capabilities of a peer, another pair defines
   an echo request and response exchange for testing reachability.

Table of Contents

   1  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.1 Requirements Language  . . . . . . . . . . . . . . . . . . .  4
   2  GUE capabilities query and response messages  . . . . . . . . .  5
     2.1 Capabilities query message . . . . . . . . . . . . . . . . .  5
     2.2 Capabilities response message  . . . . . . . . . . . . . . .  6
     2.3 Capabilities TLV format  . . . . . . . . . . . . . . . . . .  7
     2.4 TLV types  . . . . . . . . . . . . . . . . . . . . . . . . .  7
       2.4.1 GUE variants . . . . . . . . . . . . . . . . . . . . . .  7
       2.4.2 Control message types  . . . . . . . . . . . . . . . . .  8
       2.4.3 GUE flags  . . . . . . . . . . . . . . . . . . . . . . .  8
       2.4.4 Payload transform types  . . . . . . . . . . . . . . . .  9
     2.5 Operation  . . . . . . . . . . . . . . . . . . . . . . . . .  9
       2.5.1 Sending a capabilities query . . . . . . . . . . . . . .  9
       2.5.2 Receiving a capabilities query . . . . . . . . . . . . .  9
       2.5.3 Validating a capabilities response message . . . . . . . 10
       2.5.4 Processing a capabilities response . . . . . . . . . . . 10
   3 Echo request and reply messages  . . . . . . . . . . . . . . . . 11
     3.1 Echo request . . . . . . . . . . . . . . . . . . . . . . . . 11
       3.1.1 Optional echo data format  . . . . . . . . . . . . . . . 12
     3.2 Echo reply . . . . . . . . . . . . . . . . . . . . . . . . . 13
     3.4 Operation  . . . . . . . . . . . . . . . . . . . . . . . . . 13
       3.4.1 Sending an echo request  . . . . . . . . . . . . . . . . 13
       3.4.2 Receiving an echo request  . . . . . . . . . . . . . . . 14
       3.4.3 Receiving an echo reply  . . . . . . . . . . . . . . . . 14
     3.5 Testing GUE capabilities . . . . . . . . . . . . . . . . . . 14
   4  Security considerations . . . . . . . . . . . . . . . . . . . . 14
   5  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 15
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