Network Working Group                                           D. Fedyk
Internet-Draft                                                 E. Kinzie
Intended status: Standards Track                 LabN Consulting, L.L.C.
Expires: 15 May 2022                                    11 November 2021


      Definitions of Managed Objects for IP Traffic Flow Security
                    draft-ietf-ipsecme-mib-iptfs-01

Abstract

   This document describes managed objects for the the management of IP
   Traffic Flow Security additions to IKEv2 and IPsec.  This document
   provides a read only version of the objects defined in the YANG
   module for the same purpose.

   This is an unpublished work in progress.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on 15 May 2022.

Copyright Notice

   Copyright (c) 2021 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents (https://trustee.ietf.org/
   license-info) in effect on the date of publication of this document.
   Please review these documents carefully, as they describe your rights
   and restrictions with respect to this document.  Code Components
   extracted from this document must include Simplified BSD License text
   as described in Section 4.e of the Trust Legal Provisions and are
   provided without warranty as described in the Simplified BSD License.



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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology & Concepts  . . . . . . . . . . . . . . . . . . .   2
   3.  Overview  . . . . . . . . . . . . . . . . . . . . . . . . . .   3
   4.  Management Objects  . . . . . . . . . . . . . . . . . . . . .   3
     4.1.  MIB Tree  . . . . . . . . . . . . . . . . . . . . . . . .   3
     4.2.  SNMP  . . . . . . . . . . . . . . . . . . . . . . . . . .   4
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  19
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  19
   7.  Normative References  . . . . . . . . . . . . . . . . . . . .  19
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  20

1.  Introduction

   This document defines a Management Information Base (MIB) module for
   use with network management protocols in the Internet community.
   Traffic Flow Security (IP-TFS) extensions as defined in
   [I-D.ietf-ipsecme-iptfs].  IP-TFS provides enhancements to an IPsec
   tunnel Security Association to provide improved traffic
   confidentiality.

   For a detailed overview of the documents that describe the current
   Internet-Standard Management Framework, please refer to section 7 of
   [RFC3410].

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  MIB objects are generally
   accessed through the Simple Network Management Protocol (SNMP).
   Objects in the MIB are defined using the mechanisms defined in the
   Structure of Management Information (SMI).  This memo specifies a MIB
   module that is compliant to the SMIv2, which is described in STD 58,
   [RFC2578], STD 58, [RFC2579] and STD 58, [RFC2580].

   The objects defined here are the same as
   [I-D.ietf-ipsecme-yang-iptfs] with the exception that only
   operational data is supported.  This module uses the YANG model as a
   reference point for managed objects.  Note an IETF MIB model for
   IPsec was never standardized however the structures here could be
   adapted to existing MIB implementations.

2.  Terminology & Concepts

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in
   [RFC2119] [RFC8174] when, and only when, they appear in all capitals,
   as shown here.



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3.  Overview

   This document defines configuration and operational parameters of IP
   traffic flow security (IP-TFS).  IP-TFS, defined in
   [I-D.ietf-ipsecme-iptfs], configures a security association for
   tunnel mode IPsec with characteristics that improve traffic
   confidentiality and reduce bandwidth efficiency loss.

   This document is based on the concepts and management model defined
   in [I-D.ietf-ipsecme-yang-iptfs].  This documents assume familiarity
   with IP security concepts described in [RFC4301], IP-TFS as described
   in [I-D.ietf-ipsecme-iptfs] and the IP-TFS management model described
   in [I-D.ietf-ipsecme-yang-iptfs].

   This document specifies an extensible operational model for IP-TFS.
   It reuses the management model defined in
   [I-D.ietf-ipsecme-yang-iptfs].  It allows SNMP systems to read
   configured and operational objects of IPTFS.

4.  Management Objects

4.1.  MIB Tree

   The following is the MIB registration tree diagram for the IP-TFS
   extensions.

   # IETF-IPTFS-MIB registration tree (generated by smidump 0.4.8)

   --iptfsMIB(1.3.6.1.3.500)
     +--iptfsMIBObjects(1)
     |  +--iptfsGroup(1)
     |  |  +--iptfsConfigTable(1)
     |  |     +--iptfsConfigTableEntry(1) [iptfsConfigSaIndex]
     |  |        +-- --- Integer32     iptfsConfigSaIndex(1)
     |  |        +-- r-n TruthValue    congestionControl(2)
     |  |        +-- r-n TruthValue    usePathMtu(3)
     |  |        +-- r-n UnsignedShort outerPacketSize(4)
     |  |        +-- r-n Counter64     l2FixedRate(5)
     |  |        +-- r-n Counter64     l3FixedRate(6)
     |  |        +-- r-n TruthValue    dontFragment(7)
     |  |        +-- r-n NanoSeconds   maxAggregationTime(8)
     |  |        +-- r-n Unsigned32    windowSize(9)
     |  |        +-- r-n TruthValue    sendImmediately(10)
     |  |        +-- r-n NanoSeconds   lostPktTimerInt(11)
     |  +--ipsecStatsGroup(2)
     |  |  +--ipsecStatsTable(1)
     |  |     +--ipsecStatsTableEntry(1) [ipsecSaIndex]
     |  |        +-- --- Integer32 ipsecSaIndex(1)



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     |  |        +-- r-n Counter64 txPackets(2)
     |  |        +-- r-n Counter64 txOctets(3)
     |  |        +-- r-n Counter64 txDropPackets(4)
     |  |        +-- r-n Counter64 rxPackets(5)
     |  |        +-- r-n Counter64 rxOctets(6)
     |  |        +-- r-n Counter64 rxDropPackets(7)
     |  +--iptfsInnerStatsGroup(3)
     |  |  +--iptfsInnerStatsTable(1)
     |  |     +--iptfsInnerStatsTableEntry(1) [iptfsInnerSaIndex]
     |  |        +-- --- Integer32 iptfsInnerSaIndex(1)
     |  |        +-- r-n Counter64 txInnerPackets(2)
     |  |        +-- r-n Counter64 txInnerOctets(3)
     |  |        +-- r-n Counter64 rxInnerPackets(4)
     |  |        +-- r-n Counter64 rxInnerOctets(5)
     |  |        +-- r-n Counter64 rxIncompleteInnerPackets(6)
     |  +--iptfsOuterStatsGroup(4)
     |     +--iptfsOuterStatsTable(1)
     |        +--iptfsOuterStatsTableEntry(1) [iptfsSaIndex]
     |           +-- --- Integer32 iptfsSaIndex(1)
     |           +-- r-n Counter64 txExtraPadPackets(2)
     |           +-- r-n Counter64 txExtraPadOctets(3)
     |           +-- r-n Counter64 txAllPadPackets(4)
     |           +-- r-n Counter64 txAllPadOctets(5)
     |           +-- r-n Counter64 rxExtraPadPackets(6)
     |           +-- r-n Counter64 rxExtraPadOctets(7)
     |           +-- r-n Counter64 rxAllPadPackets(8)
     |           +-- r-n Counter64 rxAllPadOctets(9)
     |           +-- r-n Counter64 rxErroredPackets(10)
     |           +-- r-n Counter64 rxMissedPackets(11)
     +--iptfsMIBConformance(2)
        +--iptfsMIBConformances(1)
        |  +--iptfsMIBCompliance(1)
        +--iptfsMIBGroups(2)
           +--iptfsMIBConfGroup(1)
           +--ipsecStatsConfGroup(2)
           +--iptfsInnerStatsConfGroup(3)
           +--iptfsOuterStatsConfGroup(4)

4.2.  SNMP

   The following is the MIB for IP-TFS.

  -- *------------------------------------------------------------------
  -- *
  -- *------------------------------------------------------------------

  IETF-IPTFS-MIB DEFINITIONS ::= BEGIN
     IMPORTS



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          MODULE-IDENTITY, OBJECT-TYPE,
          Integer32, Unsigned32, Counter64, experimental
              FROM SNMPv2-SMI
          MODULE-COMPLIANCE, OBJECT-GROUP
              FROM SNMPv2-CONF
          TEXTUAL-CONVENTION,
          TruthValue
              FROM SNMPv2-TC;

     iptfsMIB MODULE-IDENTITY
          LAST-UPDATED "202111110000Z"
          ORGANIZATION "IETF IPsecme Working Group"
          CONTACT-INFO
                  "
                     Author: Don Fedyk
                             <mailto:dfedyk@labn.net>

                     Author: Eric Kinzie
                             <mailto:ekinzie.labn.net>"


     DESCRIPTION
        "This module defines the configuration and operational
        state for managing the IP Traffic Flow Security
        functionality [RFC XXXX].  Copyright (c) 2020 IETF
        Trust and the persons identified as authors of the
        code. All rights reserved.

        Redistribution and use in source and binary forms,
        with or without modification, is permitted pursuant
        to, and subject to the license terms contained in,
        the Simplified BSD License set forth in Section 4.c
        of the IETF Trust's Legal Provisions Relating to IETF
        Documents (https://trustee.ietf.org/license-info).

        This version of this SNMP MIB module is part of RFC XXXX
        (https://tools.ietf.org/html/rfcXXXX); see the RFC
        itself for full legal notices."


      REVISION "202111110000Z"
      DESCRIPTION
              "Initial revision. Derived from the IPTFS Yang Model."
      ::= { experimental 500 }
  --
  -- Textual Conventions
  --




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  UnsignedShort ::= TEXTUAL-CONVENTION
      DISPLAY-HINT "d"
      STATUS      current
      DESCRIPTION "xs:unsignedShort"
      SYNTAX      Unsigned32 (0 .. 65535)


  NanoSeconds ::= TEXTUAL-CONVENTION
      DISPLAY-HINT "d"
      STATUS  current
      DESCRIPTION
        "Represents time unit value in nanoseconds."
      SYNTAX      Counter64


  -- Objects, Notifications & Conformances

     iptfsMIBObjects     OBJECT IDENTIFIER
                 ::= { iptfsMIB 1 }
     iptfsMIBConformance OBJECT IDENTIFIER
                 ::= { iptfsMIB 2}

  --
  -- IPTFS MIB Object Groups
  --
     iptfsGroup OBJECT IDENTIFIER
                ::= { iptfsMIBObjects 1 }

     ipsecStatsGroup OBJECT IDENTIFIER
                ::= { iptfsMIBObjects 2 }

     iptfsInnerStatsGroup OBJECT IDENTIFIER
                ::= { iptfsMIBObjects 3 }

     iptfsOuterStatsGroup OBJECT IDENTIFIER
                ::= { iptfsMIBObjects 4 }

     iptfsConfigTable OBJECT-TYPE
         SYNTAX     SEQUENCE OF IptfsConfigTableEntry
         MAX-ACCESS not-accessible
         STATUS     current
         DESCRIPTION
                 "The table containing configuration information for
                 IPTFS."
         ::= { iptfsGroup 1 }

     iptfsConfigTableEntry OBJECT-TYPE
         SYNTAX     IptfsConfigTableEntry



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         MAX-ACCESS not-accessible
         STATUS     current
         DESCRIPTION
           "An entry (conceptual row) containing the information on
           a particular IPTFS SA."
         INDEX      { iptfsConfigSaIndex }
         ::= { iptfsConfigTable 1 }

    IptfsConfigTableEntry ::= SEQUENCE {
        iptfsConfigSaIndex         Integer32,

     -- identifier information
        congestionControl          TruthValue,
        usePathMtu                 TruthValue,
        outerPacketSize            UnsignedShort,
        l2FixedRate                Counter64,
        l3FixedRate                Counter64,
        dontFragment               TruthValue,
        maxAggregationTime         NanoSeconds,
        windowSize                 Unsigned32,
        sendImmediately            TruthValue,
        lostPktTimerInt            NanoSeconds
     }

     iptfsConfigSaIndex OBJECT-TYPE
         SYNTAX      Integer32 (1..16777215)
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
           "A unique value, greater than zero, for each SA.
           It is recommended that values are assigned contiguously
           starting from 1.

           The value for each entry must remain constant at least
           from one re-initialization of entity's network management
           system to the next re-initialization."
         ::= { iptfsConfigTableEntry 1 }

      congestionControl OBJECT-TYPE
          SYNTAX      TruthValue
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
            "Congestion Control With the congestion controlled
            mode, IP-TFS adapts to network congestion by lowering
            the packet send rate to accommodate the congestion, as
            well as raising the rate when congestion subsides."
          DEFVAL { false }



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          ::= { iptfsConfigTableEntry 2 }

      usePathMtu OBJECT-TYPE
          SYNTAX      TruthValue
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
            "Packet size is either auto-discovered or manually
            configured. If usePathMtu is true the system utilizes
            path-mtu to determine maximum IPTFS packet size.  If
            the packet size is explicitly configured then it will
            only be adjusted downward if use-path-mtu is set."
          ::= { iptfsConfigTableEntry 3 }

      outerPacketSize OBJECT-TYPE
          SYNTAX      UnsignedShort
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
            "The size of the outer encapsulating tunnel packet
            (i.e., the IP packet containing the ESP payload)."
          ::= { iptfsConfigTableEntry 4 }

      l2FixedRate OBJECT-TYPE
          SYNTAX      Counter64
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
            "TFS bit rate may be specified at layer 2 wire rate.
            Target bandwidth/bit rate in bps for iptfs tunnel.
            This rate is the nominal timing for the fixed size
            packet. If congestion control is enabled the rate may
            be adjusted down (or up if unset)."
          ::= { iptfsConfigTableEntry 5 }

      l3FixedRate OBJECT-TYPE
          SYNTAX      Counter64
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
            "TFS bit rate may be specified at layer 3 packet
            rate.Target bandwidth/bit rate in bps for iptfs
            tunnel.  this rate is the nominal timing for the fixed
            size packet. If congestion control is enabled the rate
            may be adjusted down (or up if unset)."
          ::= { iptfsConfigTableEntry 6 }

      dontFragment OBJECT-TYPE



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          SYNTAX      TruthValue
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
            "Disable packet fragmentation across consecutive iptfs
            tunnel packets when set to true."
          ::= { iptfsConfigTableEntry 7 }

      maxAggregationTime OBJECT-TYPE
          SYNTAX      NanoSeconds
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
            "Maximum aggregation time is the maximum length of
            time a received inner packet can be held prior to
            transmission in the iptfs tunnel. Inner packets that
            would be held longer than this time, based on the
            current tunnel configuration will be dropped rather
            than be queued for transmission."
          ::= { iptfsConfigTableEntry 8 }

      windowSize OBJECT-TYPE
          SYNTAX      Unsigned32(0..65535)
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
            "The maximum number of out-of-order packets that will be
            reordered by an iptfs receiver while performing the
            reordering operation. The value 0 disables any
            reordering."
          ::= { iptfsConfigTableEntry 9 }

      sendImmediately OBJECT-TYPE
          SYNTAX      TruthValue
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
            "Send inner packets as soon as possible, do not wait for
            lost or misordered outer packets.  Selecting this option
            reduces the inner (user) packet delay but can amplify
            out-of-order delivery of the inner packet stream in the
            presence of packet aggregation and any reordering."
          ::= { iptfsConfigTableEntry 10 }

      lostPktTimerInt OBJECT-TYPE
          SYNTAX      NanoSeconds
          MAX-ACCESS  read-only
          STATUS      current



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          DESCRIPTION
            "This interval defines the length of time an iptfs
            receiver will wait for a missing packet before
            considering it lost. Setting this value too low can
            impact reordering and reassembly. The value is
            configurable in milliseconds or fractional milliseconds
            down to 1 nanosecond."
          ::= { iptfsConfigTableEntry 11 }

     ipsecStatsTable OBJECT-TYPE
         SYNTAX     SEQUENCE OF IpsecStatsTableEntry
         MAX-ACCESS not-accessible
         STATUS     current
         DESCRIPTION
           "The table containing basic statistics on IPsec."
         ::= { ipsecStatsGroup 1 }


      ipsecStatsTableEntry OBJECT-TYPE
         SYNTAX     IpsecStatsTableEntry
         MAX-ACCESS not-accessible
         STATUS     current
         DESCRIPTION
           "An entry (conceptual row) containing the information on
           a particular IKE SA."
         INDEX      { ipsecSaIndex }
         ::= { ipsecStatsTable 1 }

       IpsecStatsTableEntry ::= SEQUENCE {
       ipsecSaIndex               Integer32,
  -- packet statistics information
       txPackets                  Counter64,
       txOctets                   Counter64,
       txDropPackets              Counter64,
       rxPackets                  Counter64,
       rxOctets                   Counter64,
       rxDropPackets              Counter64
     }

     ipsecSaIndex OBJECT-TYPE
        SYNTAX      Integer32 (1..16777215)
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
          "A unique value, greater than zero, for each SA.
          It is recommended that values are assigned contiguously
          starting from 1.




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          The value for each entry must remain constant at least
          from one re-initialization of entity's network management
          system to the next re-initialization."
        ::= { ipsecStatsTableEntry 1 }


     txPackets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Outbound Packet count."
         ::= { ipsecStatsTableEntry 2 }

     txOctets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Outbound Packet bytes."
         ::= { ipsecStatsTableEntry 3 }

     txDropPackets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Outbound dropped packets count."
         ::= { ipsecStatsTableEntry 4 }

     rxPackets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Inbound Packet count."
         ::= { ipsecStatsTableEntry 5 }

     rxOctets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Inbound Packet bytes."
         ::= { ipsecStatsTableEntry 6 }

     rxDropPackets OBJECT-TYPE
         SYNTAX      Counter64



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         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Inbound Dropped packets"
         ::= { ipsecStatsTableEntry 7 }

     iptfsInnerStatsTable OBJECT-TYPE
         SYNTAX     SEQUENCE OF IptfsInnerSaEntry
         MAX-ACCESS not-accessible
         STATUS     current
         DESCRIPTION
           "The table containing information on IPTFS
           Inner Packets."
         ::= { iptfsInnerStatsGroup 1 }

     iptfsInnerStatsTableEntry OBJECT-TYPE
        SYNTAX     IptfsInnerSaEntry
        MAX-ACCESS not-accessible
        STATUS     current
        DESCRIPTION
          "An entry containing the information on
          a particular tfs SA."
        INDEX      { iptfsInnerSaIndex }
        ::= { iptfsInnerStatsTable 1 }

       IptfsInnerSaEntry ::= SEQUENCE {
       iptfsInnerSaIndex          Integer32,

       txInnerPackets             Counter64,
       txInnerOctets              Counter64,
       rxInnerPackets             Counter64,
       rxInnerOctets              Counter64,
       rxIncompleteInnerPackets   Counter64
      }

     iptfsInnerSaIndex OBJECT-TYPE
        SYNTAX      Integer32 (1..16777215)
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
          "A unique value, greater than zero, for each SA.
          It is recommended that values are assigned contiguously
          starting from 1.

          The value for each entry must remain constant at least
          from one re-initialization of entity's network management
          system to the next re-initialization."
        ::= { iptfsInnerStatsTableEntry 1 }



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     txInnerPackets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Total number of IP-TFS inner packets sent. This count
           is whole packets only.  A fragmented packet counts as
           one packet."
         ::= { iptfsInnerStatsTableEntry 2 }

     txInnerOctets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Total number of IP-TFS inner octets sent.  This is
           inner packet octets only.  Does not count padding."
         ::= { iptfsInnerStatsTableEntry 3 }

     rxInnerPackets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Total number of IP-TFS inner packets received."
         ::= { iptfsInnerStatsTableEntry 4 }

         rxInnerOctets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Total number of IP-TFS inner octets received.  Does
           not include padding or overhead."
         ::= { iptfsInnerStatsTableEntry 5 }

     rxIncompleteInnerPackets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Total number of IP-TFS inner packets that were
           incomplete.  Usually this is due to fragments not
           received. Also, this may be due to misordering or
           errors in received outer packets."
      ::= { iptfsInnerStatsTableEntry 6 }

    iptfsOuterStatsTable OBJECT-TYPE



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         SYNTAX     SEQUENCE OF IptfsOuterSaEntry
         MAX-ACCESS not-accessible
         STATUS     current
         DESCRIPTION
           "The table containing information on IPTFS."
         ::= { iptfsOuterStatsGroup 1 }

     iptfsOuterStatsTableEntry OBJECT-TYPE
        SYNTAX     IptfsOuterSaEntry
        MAX-ACCESS not-accessible
        STATUS     current
        DESCRIPTION
          "An entry containing the information on
          a particular tfs SA."
        INDEX      { iptfsSaIndex }
        ::= { iptfsOuterStatsTable 1 }

       IptfsOuterSaEntry ::= SEQUENCE {
       iptfsSaIndex               Integer32,

    -- iptfs packet statistics information
       txExtraPadPackets          Counter64,
       txExtraPadOctets           Counter64,
       txAllPadPackets            Counter64,
       txAllPadOctets             Counter64,
       rxExtraPadPackets          Counter64,
       rxExtraPadOctets           Counter64,
       rxAllPadPackets            Counter64,
       rxAllPadOctets             Counter64,
       rxErroredPackets           Counter64,
       rxMissedPackets            Counter64
      }


     iptfsSaIndex OBJECT-TYPE
        SYNTAX      Integer32 (1..16777215)
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
          "A unique value, greater than zero, for each SA.
          It is recommended that values are assigned contiguously
          starting from 1.

          The value for each entry must remain constant at least
          from one re-initialization of entity's network management
          system to the next re-initialization."
        ::= { iptfsOuterStatsTableEntry 1 }




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     txExtraPadPackets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Total number of transmitted outer IP-TFS packets that
           included some padding."
         ::= { iptfsOuterStatsTableEntry 2 }

     txExtraPadOctets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Total number of transmitted octets of padding added to
           outer IP-TFS packets with data."
         ::= { iptfsOuterStatsTableEntry 3 }

     txAllPadPackets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Total number of transmitted IP-TFS packets that were
           all padding with no inner packet data."
         ::= { iptfsOuterStatsTableEntry 4 }

     txAllPadOctets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Total number transmitted octets of padding added to
           IP-TFS packets with no inner packet data."
         ::= { iptfsOuterStatsTableEntry 5 }

     rxExtraPadPackets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Total number of received outer IP-TFS packets that
           included some padding."
         ::= { iptfsOuterStatsTableEntry 6 }

     rxExtraPadOctets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only



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         STATUS      current
         DESCRIPTION
           "Total number of received octets of padding added to
           outer IP-TFS packets with data."
         ::= { iptfsOuterStatsTableEntry 7 }

     rxAllPadPackets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Total number of received IP-TFS packets that were all
           padding with no inner paccket data."
         ::= { iptfsOuterStatsTableEntry 8 }

     rxAllPadOctets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Total number received octets of padding added to
           IP-TFS packets with no inner packet data."
         ::= { iptfsOuterStatsTableEntry 9 }

     rxErroredPackets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Total number of IP-TFS outer packets dropped due to
           errors."
         ::= { iptfsOuterStatsTableEntry 10 }

     rxMissedPackets OBJECT-TYPE
         SYNTAX      Counter64
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
           "Total number of IP-TFS outer packets missing indicated
           by missing sequence number."
         ::= { iptfsOuterStatsTableEntry 11 }

  --
  -- Iptfs Module Compliance
  --

  iptfsMIBConformances OBJECT IDENTIFIER
                      ::= { iptfsMIBConformance 1 }



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  iptfsMIBGroups OBJECT IDENTIFIER
                      ::= { iptfsMIBConformance 2 }

  iptfsMIBCompliance MODULE-COMPLIANCE
          STATUS  current
          DESCRIPTION
                  "The compliance statement for entities which implement
                  the IPTFS MIB"
          MODULE  -- this module
                  MANDATORY-GROUPS {
                   iptfsMIBConfGroup,
                   ipsecStatsConfGroup,
                   iptfsInnerStatsConfGroup,
                   iptfsOuterStatsConfGroup
                  }

          ::= { iptfsMIBConformances 1 }

  --
  -- MIB Groups (Units of Conformance)
  --

  iptfsMIBConfGroup OBJECT-GROUP
          OBJECTS {
                  congestionControl,
                  usePathMtu,
                  outerPacketSize ,
                  l2FixedRate ,
                  l3FixedRate ,
                  dontFragment,
                  maxAggregationTime,
                  windowSize,
                  sendImmediately,
                  lostPktTimerInt
          }
          STATUS  current
          DESCRIPTION
                  "A collection of objects providing per SA IPTFS
                  Configuration."
          ::= { iptfsMIBGroups 1 }

  ipsecStatsConfGroup OBJECT-GROUP
          OBJECTS {
                  txPackets,
                  txOctets,
                  txDropPackets,
                  rxPackets,
                  rxOctets,



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                  rxDropPackets
          }
          STATUS  current
          DESCRIPTION
            "A collection of objects providing per SA Basic
            Stats."
          ::= { iptfsMIBGroups 2 }

  iptfsInnerStatsConfGroup OBJECT-GROUP
          OBJECTS {
                  txInnerPackets,
                  txInnerOctets,
                  rxInnerPackets,
                  rxInnerOctets,
                  rxIncompleteInnerPackets
          }
          STATUS  current
          DESCRIPTION
            "A collection of objects providing per SA IPTFS
            Inner Packet Statistics."
          ::= { iptfsMIBGroups 3 }


  iptfsOuterStatsConfGroup OBJECT-GROUP
          OBJECTS {
                  txExtraPadPackets,
                  txExtraPadOctets,
                  txAllPadPackets,
                  txAllPadOctets,
                  rxExtraPadPackets,
                  rxExtraPadOctets,
                  rxAllPadPackets,
                  rxAllPadOctets,
                  rxErroredPackets,
                  rxMissedPackets
          }
          STATUS  current
          DESCRIPTION
            "A collection of objects providing per SA IPTFS
            Outer Packet Statistics."
          ::= { iptfsMIBGroups 4 }

  END








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5.  Security Considerations

   The MIB specified in this document can read the operational and
   configured the behavior of IP traffic flow security, for the
   implications regarding write configuration consult the
   [I-D.ietf-ipsecme-iptfs] which defines the functionality.

6.  Acknowledgements

   The authors would like to thank Chris Hopps for his help and feedback
   on the MIB model.

7.  Normative References

   [I-D.ietf-ipsecme-iptfs]
              Hopps, C., "IP-TFS: Aggregation and Fragmentation Mode for
              ESP and its Use for IP Traffic Flow Security", Work in
              Progress, Internet-Draft, draft-ietf-ipsecme-iptfs-12, 8
              November 2021, <https://www.ietf.org/archive/id/draft-
              ietf-ipsecme-iptfs-12.txt>.

   [I-D.ietf-ipsecme-yang-iptfs]
              Fedyk, D. and C. Hopps, "A YANG Data Model for IP Traffic
              Flow Security", Work in Progress, Internet-Draft, draft-
              ietf-ipsecme-yang-iptfs-03, 11 November 2021,
              <https://www.ietf.org/archive/id/draft-ietf-ipsecme-yang-
              iptfs-03.txt>.

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119,
              DOI 10.17487/RFC2119, March 1997,
              <https://www.rfc-editor.org/info/rfc2119>.

   [RFC2578]  McCloghrie, K., Ed., Perkins, D., Ed., and J.
              Schoenwaelder, Ed., "Structure of Management Information
              Version 2 (SMIv2)", STD 58, RFC 2578,
              DOI 10.17487/RFC2578, April 1999,
              <https://www.rfc-editor.org/info/rfc2578>.

   [RFC2579]  McCloghrie, K., Ed., Perkins, D., Ed., and J.
              Schoenwaelder, Ed., "Textual Conventions for SMIv2",
              STD 58, RFC 2579, DOI 10.17487/RFC2579, April 1999,
              <https://www.rfc-editor.org/info/rfc2579>.

   [RFC2580]  McCloghrie, K., Ed., Perkins, D., Ed., and J.
              Schoenwaelder, Ed., "Conformance Statements for SMIv2",
              STD 58, RFC 2580, DOI 10.17487/RFC2580, April 1999,
              <https://www.rfc-editor.org/info/rfc2580>.



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   [RFC3410]  Case, J., Mundy, R., Partain, D., and B. Stewart,
              "Introduction and Applicability Statements for Internet-
              Standard Management Framework", RFC 3410,
              DOI 10.17487/RFC3410, December 2002,
              <https://www.rfc-editor.org/info/rfc3410>.

   [RFC4301]  Kent, S. and K. Seo, "Security Architecture for the
              Internet Protocol", RFC 4301, DOI 10.17487/RFC4301,
              December 2005, <https://www.rfc-editor.org/info/rfc4301>.

   [RFC8174]  Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
              2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
              May 2017, <https://www.rfc-editor.org/info/rfc8174>.

Authors' Addresses

   Don Fedyk
   LabN Consulting, L.L.C.

   Email: dfedyk@labn.net


   Eric Kinzie
   LabN Consulting, L.L.C.

   Email: ekinzie@labn.net

























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