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RFC 4404 - Definitions of Managed Objects for Fibre Channel Over


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Network Working Group                                       R. Natarajan
Request for Comments: 4404                                   F5 Networks
Category: Standards Track                                A. Rijhsinghani
                                           Accton Technology Corporation
                                                           February 2006

  Definitions of Managed Objects for Fibre Channel Over TCP/IP (FCIP)

Status of This Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2006).

Abstract

   This memo defines a portion of the Management Information Base (MIB)
   for use with network management protocols in TCP/IP-based internets.
   In particular, it defines objects for managing  Fibre Channel Over
   TCP/IP (FCIP) entities, which are used to interconnect Fibre Channel
   (FC) fabrics with IP networks.

Table of Contents

   1. The Internet-Standard Management Framework ......................2
   2. Overview of FCIP Management Model ...............................2
   3. Relationship to Other MIBs ......................................4
   4. MIB Definitions .................................................6
   5. Security Considerations ........................................29
   6. IANA Considerations ............................................30
   7. Acknowledgements ...............................................30
   8. Normative References ...........................................30
   9. Informative References .........................................31

1.  The Internet-Standard Management Framework

   For a detailed overview of the documents that describe the current
   Internet-Standard Management Framework, please refer to section 7 of
   RFC 3410 [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,
   RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
   [RFC2580].

2.  Overview of FCIP Management Model

   Note that the Fibre Channel Over TCP/IP (FCIP) Entity is fully
   described in [RFC3821] from a functional point of view.  A collection
   of multiple instances of FCIP Entities and the corresponding FC
   Entities, described in [FCBB2], within an SNMP Context is referred to
   as an FCIP device here.  This section describes FCIP from a
   management point of view.

        +------------------------------------------+
        | FCIP Device                              |
        |                                          |
        |   +-----------+       +-----------+      |
        |   |FCIP Entity|       |FCIP Entity|      |
        |   |           |       |           |      |
        |   |           |       |           |      |
        |   +--+--+--+--+       +--+--+--+--+      |
        |      |  |  |             |  |  |         |
        |      |  |  |             |  |  |         |
        |     FCIP Links         FCIP Links        |
        |                                          |
        +------------------------------------------+

   The FCIP device provides an IP-based interconnection model for
   interconnecting FC fabric elements.  In this model, the FCIP devices
   along with the IP network on which they are running provide a new
   FCIP transport network.

   This IP-based FCIP Interconnection Model supports the following
   topology:

   o The FCIP-based transport network is formed by interconnecting the
     FCIP devices.

   o Each FCIP device has one or more FCIP Entities or Instances.

   o Peer FCIP Entities are connected by FCIP Links attached to
     VE_ports/B_Access.

   o Each FCIP Link Endpoint contains one or more Data Engines.

   o The FCIP device can work as a stand-alone box or as part of a FC
     fabric element.

   Each FCIP Entity managed by this MIB is referred to as an FCIP
   Instance.  The MIB is broken up as follows:

2.1.  FCIP Entity Instances Table

   The FCIP Entity table contains information about this entity's
   existing instances of FCIP entities.

2.2.  FCIP Link Table

   The FCIP link table contains information about this FCIP device's
   existing FCIP links.

2.3.  FCIP TCP Connection Table

   The FCIP TCP Connection table contains information about existing TCP
   connections.  Each FCIP link within an FCIP entity contains one or
   more TCP connections.  The FCIP entity employs a Data Engine for each
   TCP connection for handling FC frame encapsulation, de-encapsulation,
   and transmission of FCIP frames on the connection.

2.4.  FCIP Dynamic Route Table

   The FCIP dynamic route table contains routing information that is
   dynamically discovered by this FCIP device.  The FCIP device may use
   the SLPv2 protocol [RFC3822] in conjunction with other protocols,
   such as Fabric Shortest Path First (FSPF), to dynamically discover
   other FCIP entities and populate this table to map destination
   domains to FCIP Links.

2.5.  FCIP Static Route Table

   The FCIP static route table contains routing information that is
   statically configured into this FCIP device by the Network Admin.  In
   the absence of dynamic discovery of remote FCIP entities, the Network
   Manager can configure remote domains and FCIP Entities that are
   reachable by this device into this table.

   At any point in time, both the static and dynamic routing tables can
   be active.  If a DID is present in both tables, information in the
   static route table will take precedence over the entry in the dynamic
   route table for the same DID.

2.6.  FCIP Discovery Domain Table

   The FCIP Discovery Domain Table maps this device's FCIP Entities into
   FCIP Discovery Domains.

2.7.  FCIP Link Error Table

   The FCIP Link Errors Table contains counters that indicate error
   conditions on an FCIP Link.

3.  Relationship to Other MIBs

   Objects accessible from other MIB modules applicable to FCIP devices
   have not been included in this MIB module.  The following subsections
   list all applicable MIB modules that should be present with FCIP-
   MGMT-MIB.

3.1.  Relationship to the 'TCP' Group

   This group is mandatory for all systems that implement TCP.  Objects
   relevant to TCP must be obtained from this group [RFC4022].

3.2.  Relationship to the 'interfaces' MIB

   The 'interfaces' group is defined as being mandatory for all systems
   and contains information on an entity's interfaces.  Each
   logical/virtual interface created as an FCIP Link should be
   represented as a row in the ifTable with a unique ifIndex value and a
   value of ifType 'fcipLink' (224) for each such interface.  For a
   complete list of interface types, refer to the IANA registry at
   "http://www.iana.org/assignments/smi-numbers".  These are the only
   ifIndex values of relevance to an FCIP Entity because FCIP runs on
   top of TCP/IP.

   FCIP runs over TCP.  Thus, by definition, there is no ifTable
   interface directly beneath it, and so ifStackLowerLayer is always 0.
   For any protocol using FCIP (i.e., above FCIP), FCIP appears to be a
   regular FC interface.  As stated in [RFC4044], a regular "FC
   interface will typically have no other ifTable rows stacked on top of
   it", and thus, ifStackHigherLayer is typically zero.

3.3.  Relationship to the Fibre Channel Management MIB

   The Fibre Channel Management MIB [RFC4044] is assumed for FC
   functionality managed objects.

3.4.  Specific Interface Group MIB Objects

   The following table provides specific implementation guidelines for
   applying the objects defined in the Interfaces Group MIB to FCIP
   Links.  For those objects not listed here, refer to their generic
   definitions in [RFC2863].

    Object                   Guidelines

   ifType                   'fcipLink' (224)

   ifSpeed                  The ifSpeed for the physical interface(s)
                            over which the FCIP Link runs.

   ifPhysAddress            There is no physical address corresponding
                            to an FCIP Link (only World Wide Name, WWN).
                            Reported as 0.

   ifAdminStatus            Write access is not required, and support
                            for 'testing' is not required.

   ifOperStatus             Support for 'testing' is not required.
                            The value 'dormant' has no meaning for
                            FCIP Links.

   ifInOctets               The number of octets of FCIP information
   ifHCInOctets             contained in received frames in TCP
                            streams, starting with FCIP header.

   ifInUcastPkts            The number of FCIP frames received
   ifHCInUcastPkts          on this FCIP Link.

   ifOutOctets              The number of octets of FCIP information
   ifHCOutOctets            contained in transmitted frames in TCP
                            streams, starting with FCIP header.

   ifOutUcastPkts           The number of FCIP frames transmitted
   ifHCOutUcastPkts         on this FCIP Link.

   ifInMulticastPkts        These counters are not incremented.
   ifInBroadcastPkts
   ifOutMulticastPkts
   ifOutBroadcastPkts
   ifHCInMulticastPkts
   ifHCInBroadcastPkts
   ifHCOutMulticastPkts
   ifHCOutBroadcastPkts

   ifLinkUpDownTrapEnable   Default is 'disabled'.

   ifPromiscuousMode        This will be 'false'.

   ifConnectorPresent       This will be 'false'.

4.  MIB Definitions

   The following MIB module has IMPORTS from [RFC2578], [RFC2579],
   [RFC4001], [RFC4044], [RFC2863], [RFC2580], and [RFC3411].  In
   REFERENCE clauses, it refers to [FC-SW-3], [RFC3821], [RFC2883],
   [RFC1323], [RFC2474] and [RFC3822].

   FCIP-MGMT-MIB DEFINITIONS ::= BEGIN

   IMPORTS
       OBJECT-TYPE,
       MODULE-IDENTITY,
       Unsigned32,
       Counter32,
       mib-2               FROM SNMPv2-SMI
       TEXTUAL-CONVENTION,
       TruthValue, RowStatus, TimeStamp  FROM SNMPv2-TC
       InetAddressType,
       InetAddress,
       InetPortNumber FROM INET-ADDRESS-MIB
       FcNameIdOrZero FROM FC-MGMT-MIB
       InterfaceIndex FROM IF-MIB
       MODULE-COMPLIANCE,
       OBJECT-GROUP FROM SNMPv2-CONF
       SnmpAdminString FROM SNMP-FRAMEWORK-MIB;

   fcipMIB MODULE-IDENTITY
       LAST-UPDATED "200602060000Z"
       ORGANIZATION "IETF IPFC Working Group"
       CONTACT-INFO "Anil Rijhsinghani
                     Accton Technology Corporation
                     5 Mount Royal Ave
                     Marlboro, MA 01752 USA.

                     Ravi Natarajan
                     F5 Networks
                     2460 North First Street, Suite 100
                     San Jose, CA 95131 USA."
       DESCRIPTION
           "The module defines management information specific to
            FCIP devices.

            Copyright(C) The Internet Society (2006).  This version
            of this MIB module is part of RFC 4404; see the RFC
            itself for full legal notices."
       REVISION        "200602060000Z"
       DESCRIPTION
           "Initial version of this module, published as RFC 4404."
       ::= { mib-2 224 }

   fcipObjects       OBJECT IDENTIFIER ::= { fcipMIB 1 }
   fcipConformance   OBJECT IDENTIFIER ::= { fcipMIB 2 }
   fcipConfig        OBJECT IDENTIFIER ::= { fcipObjects 1 }

   -- ******************************************************************
   -- Textual conventions
   --

   FcipDomainIdInOctetForm ::= TEXTUAL-CONVENTION
       STATUS    current
       DESCRIPTION
           "The Domain ID of a FC entity in octet form
            to support the concatenation(000000h||Domain_ID)
            format defined in the FSPF routing protocol."
       REFERENCE
           "FC-SW-3 section 4.8"
       SYNTAX    OCTET STRING (SIZE(1))

   FcipEntityMode ::= TEXTUAL-CONVENTION
       STATUS current
       DESCRIPTION
           "The type of port mode provided by an FCIP Entity
            for an FCIP Link.  An FCIP Entity can be an E-Port
            mode for one of its FCIP Link Endpoints or a B-Port
            mode for another of its FCIP Link Endpoints."
       REFERENCE
           "FC-BB, rev 4.7, 2 May 1997, section 3."
       SYNTAX INTEGER {
                   ePortMode(1),
                   bPortMode(2)
                      }

   FcipEntityId  ::= TEXTUAL-CONVENTION
       STATUS current
       DESCRIPTION
           "The FCIP entity identifier as defined in RFC 3821."
       REFERENCE
           "RFC 3821, Section 7.1, FCIP Special Frame Format"
       SYNTAX OCTET STRING (SIZE(8))

   -- ******************************************************************
   -- The FCIP group
   --
   -- This group defines the global scalar objects applicable to FCIP
   -- devices only
   --

   fcipDynIpConfType   OBJECT-TYPE
       SYNTAX INTEGER {
                   slpv2(1),
                   none(2)
       }
       MAX-ACCESS read-write
       STATUS current
       DESCRIPTION
           "The type of discovery protocol used to discover remote
            FCIP entities.  The value of this object is persistent
            across system restarts."
       ::= { fcipConfig 1 }

   fcipDeviceWWN   OBJECT-TYPE
       SYNTAX FcNameIdOrZero
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
           "The World Wide Name of this FCIP device."
       ::= { fcipConfig 2 }

   fcipEntitySACKOption   OBJECT-TYPE
       SYNTAX INTEGER {
                   enabled(1),
                   disabled(2)
       }
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
           "Indication of whether the TCP Selective Acknowledgement
            Option is enabled at this FCIP device to let the receiver
            acknowledge multiple lost packets in a single ACK for faster

            recovery."
       REFERENCE
           "The Selective Ack option is defined in RFC 2883."
       ::= { fcipConfig 3 }

   -- ******************************************************************
   -- The FCIP Entity Table
   --

   fcipEntityInstanceTable OBJECT-TYPE
       SYNTAX SEQUENCE OF FcipEntityInstanceEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "Information about this FCIP device's existing instances of
            FCIP entities."
       REFERENCE
           "RFC 3821, Section 5.4, FCIP Entity"
       ::= { fcipConfig 4 }

   fcipEntityInstanceEntry OBJECT-TYPE
       SYNTAX FcipEntityInstanceEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "A conceptual row of the FCIP entity table with information
            about a particular FCIP entity.  Once a row has been
            created, it is non-volatile across agent restarts until it
            is deleted."
       INDEX { fcipEntityId }
       ::= { fcipEntityInstanceTable 1 }

   FcipEntityInstanceEntry ::=
       SEQUENCE {
                   fcipEntityId                  FcipEntityId,
                   fcipEntityName                SnmpAdminString,
                   fcipEntityAddressType         InetAddressType,
                   fcipEntityAddress             InetAddress,
                   fcipEntityTcpConnPort         InetPortNumber,
                   fcipEntitySeqNumWrap          TruthValue,
                   fcipEntityPHBSupport          TruthValue,
                   fcipEntityStatus              RowStatus
              }

   fcipEntityId   OBJECT-TYPE
       SYNTAX FcipEntityId
       MAX-ACCESS not-accessible

       STATUS current
       DESCRIPTION
           "The FCIP entity identifier."
       REFERENCE
           "RFC 3821, Section 7.1, FCIP Special Frame Format"
       ::= { fcipEntityInstanceEntry 1 }

   fcipEntityName   OBJECT-TYPE
       SYNTAX SnmpAdminString (SIZE (0..32))
       MAX-ACCESS read-create
       STATUS current
       DESCRIPTION
           "An administratively-assigned name for this FCIP entity."
       ::= { fcipEntityInstanceEntry 2 }

   fcipEntityAddressType   OBJECT-TYPE
       SYNTAX InetAddressType
       MAX-ACCESS read-create
       STATUS current
       DESCRIPTION
           "The type of Internet address by which the entity is
            reachable.  Only address types IPv4 and IPv6 are supported."
       ::= { fcipEntityInstanceEntry 3 }

   fcipEntityAddress   OBJECT-TYPE
       SYNTAX InetAddress
       MAX-ACCESS read-create
       STATUS current
       DESCRIPTION
           "The Internet address for the entity, if configured.  The
            format of this address is determined by the value of the
            fcipEntityAddressType object."
       ::= { fcipEntityInstanceEntry 4 }

   fcipEntityTcpConnPort   OBJECT-TYPE
       SYNTAX InetPortNumber
       MAX-ACCESS read-create
       STATUS current
       DESCRIPTION
           "A TCP port other than the FCIP Well-Known port on which the
            FCIP entity listens for new TCP connection requests.  It
            contains the value zero(0) if the FCIP Entity only listens
            on the Well-Known port."
       DEFVAL  { 0 }
       ::= { fcipEntityInstanceEntry 5 }

   fcipEntitySeqNumWrap   OBJECT-TYPE
       SYNTAX TruthValue

       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
           "An indication of whether the FCIP Entity supports protection
            against sequence number wrap."
       REFERENCE
           "The PAWS option is defined in RFC 1323."
       ::= { fcipEntityInstanceEntry 6 }

   fcipEntityPHBSupport   OBJECT-TYPE
       SYNTAX TruthValue
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
           "An indication of whether the FCIP Entity supports PHB IP
            quality of service (QoS)."
       REFERENCE
           "Per hop behavior is defined in RFC 2474, definition of the
            Differentiated Services Field."
       ::= { fcipEntityInstanceEntry 7 }

   fcipEntityStatus   OBJECT-TYPE
       SYNTAX RowStatus
       MAX-ACCESS   read-create
       STATUS   current
       DESCRIPTION
           "This object specifies the operational status of the row.

            When a management station sets the status to active(1), then
            the values for the objects fcipEntityName,
            fcipEntityAddressType, and fcipEntityAddress should be
            supplied as part of the set request.  The values of the
            objects fcipEntityName, fcipEntityAddressType, and
            fcipEntityAddress can be changed if the row status is in
            active state.  The object fcipEntityTcpConnPort takes the
            default value zero(0), if no value is supplied at the time
            of row creation.

            Setting the status to destroy(6) deletes the specified FCIP
            entity instance row from the table.  It also deletes all the
            rows corresponding to the specified FCIP entity from the
            fcipLinkTable and fcipTcpConnTable tables."
       ::= { fcipEntityInstanceEntry 8 }

   -- ******************************************************************
   -- The FCIP Link Table
   --

   fcipLinkTable OBJECT-TYPE
       SYNTAX SEQUENCE OF FcipLinkEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "Information about FCIP links that exist on this device."
       ::= { fcipConfig 5 }

   fcipLinkEntry OBJECT-TYPE
       SYNTAX FcipLinkEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "A conceptual row of the FCIP link table containing
            information about a particular FCIP link.  The values of the
            read-create objects in this table are persistent across
            system restarts."
       INDEX { fcipEntityId, fcipLinkIndex }
       ::= { fcipLinkTable 1 }

   FcipLinkEntry ::=
       SEQUENCE {
                   fcipLinkIndex                       Unsigned32,
                   fcipLinkIfIndex                     InterfaceIndex,
                   fcipLinkCost                        Unsigned32,
                   fcipLinkLocalFcipEntityMode         FcipEntityMode,
                   fcipLinkLocalFcipEntityAddressType  InetAddressType,
                   fcipLinkLocalFcipEntityAddress      InetAddress,
                   fcipLinkRemFcipEntityWWN            FcNameIdOrZero,
                   fcipLinkRemFcipEntityId             FcipEntityId,
                   fcipLinkRemFcipEntityAddressType    InetAddressType,
                   fcipLinkRemFcipEntityAddress        InetAddress,
                   fcipLinkStatus                      RowStatus,
                   fcipLinkCreateTime                  TimeStamp
   }

   fcipLinkIndex     OBJECT-TYPE
       SYNTAX Unsigned32 (1..4294967295)
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "An arbitrary integer that uniquely identifies one FCIP link
            within an FCIP entity."
       ::= { fcipLinkEntry 1 }

   fcipLinkIfIndex     OBJECT-TYPE
       SYNTAX InterfaceIndex
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
           "The ifIndex value of the virtual interface corresponding to
            the FCIP Link running over TCP/IP."
       ::= { fcipLinkEntry 2 }

   fcipLinkCost     OBJECT-TYPE
       SYNTAX Unsigned32
       MAX-ACCESS read-create
       STATUS current
       DESCRIPTION
           "The FSPF cost associated with this FCIP Link."
       DEFVAL  { 0 }
       ::= { fcipLinkEntry 3 }

   fcipLinkLocalFcipEntityMode   OBJECT-TYPE
       SYNTAX FcipEntityMode
       MAX-ACCESS   read-only
       STATUS   current
       DESCRIPTION
           "The mode of the local end of the FCIP link."
       ::= { fcipLinkEntry 4 }

   fcipLinkLocalFcipEntityAddressType   OBJECT-TYPE
       SYNTAX InetAddressType
       MAX-ACCESS read-create
       STATUS current
       DESCRIPTION
           "The type of Internet address contained in the corresponding
            instance of fcipLinkLocalFcipEntityAddress.  Only address
            types IPv4 and IPv6 are supported."
       ::= { fcipLinkEntry 5 }

   fcipLinkLocalFcipEntityAddress   OBJECT-TYPE
       SYNTAX InetAddress
       MAX-ACCESS read-create
       STATUS current
       DESCRIPTION
           "The Internet address for the local end of this FCIP Link.
            The format of this object is determined by the value of the
            fcipLinkLocalFcipEntityAddressType object."
       ::= { fcipLinkEntry 6 }

   fcipLinkRemFcipEntityWWN   OBJECT-TYPE
       SYNTAX FcNameIdOrZero

       MAX-ACCESS read-create
       STATUS current
       DESCRIPTION
           "The World Wide Name of the remote FC Fabric Entity."
       REFERENCE
           "RFC 3821, Section 7.1, FCIP Special Frame Format"
       ::= { fcipLinkEntry 7 }

   fcipLinkRemFcipEntityId   OBJECT-TYPE
       SYNTAX FcipEntityId
       MAX-ACCESS read-create
       STATUS current
       DESCRIPTION
           "The remote FCIP entity's identifier."
       REFERENCE
           "RFC 3821, Section 7.1, FCIP Special Frame Format"
       ::= { fcipLinkEntry 8 }

   fcipLinkRemFcipEntityAddressType   OBJECT-TYPE
       SYNTAX InetAddressType
       MAX-ACCESS read-create
       STATUS current
       DESCRIPTION
           "The type of Internet address contained in the corresponding
            instance of fcipLinkRemFcipEntityAddress.  Only address
            types IPv4 and IPv6 are supported."
       ::= { fcipLinkEntry 9 }

   fcipLinkRemFcipEntityAddress   OBJECT-TYPE
       SYNTAX InetAddress
       MAX-ACCESS read-create
       STATUS current
       DESCRIPTION
           "The Internet address for the remote end of this FCIP Link.
            The format of this object is determined by the value of the
            fcipLinkRemFcipEntityAddressType object."
       ::= { fcipLinkEntry 10 }

   fcipLinkStatus   OBJECT-TYPE
       SYNTAX RowStatus
       MAX-ACCESS   read-create
       STATUS   current
       DESCRIPTION
           "This object specifies the operational status of the row.

            The values of objects fcipLinkLocalFcipEntityAddressType,
            fcipLinkLocalFcipEntityAddress, fcipLinkRemFcipEntityWWN,
            fcipLinkRemFcipEntityId, fcipLinkRemFcipEntityAddressType,

            and fcipLinkRemFcipEntityAddress can be changed if the row
            is in active(1) state.  The object fcipLinkCost is set to
            the value zero(0) if no value is supplied at the time of row
            creation.

            Setting the status to destroy(6) deletes the specified FCIP
            link from the table.  It also deletes all rows corresponding
            to the specified FCIP link from the fcipTcpConnTable table."
       ::= { fcipLinkEntry 11 }

   fcipLinkCreateTime OBJECT-TYPE
       SYNTAX      TimeStamp
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The value of sysUpTime when this entry was last created."
       ::= { fcipLinkEntry 12 }

   -- ******************************************************************
   -- The TCP Connection Table
   --

   fcipTcpConnTable OBJECT-TYPE
       SYNTAX SEQUENCE OF FcipTcpConnEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "Information about existing TCP connections.  Each FCIP link
            within an FCIP entity manages one or more TCP connections.
            The FCIP entity employs a Data Engine for each TCP
            connection for handling FC frame encapsulation,
            de-encapsulation, and transmission of FCIP frames on the
            connection."
       ::= { fcipConfig 6 }

   fcipTcpConnEntry OBJECT-TYPE
       SYNTAX FcipTcpConnEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "A conceptual row of the FCIP TCP Connection table containing
            information about a particular TCP connection."
       INDEX { fcipEntityId,
               fcipLinkIndex,
               fcipTcpConnLocalPort,
               fcipTcpConnRemPort}
       ::= { fcipTcpConnTable 1 }

   FcipTcpConnEntry ::=
       SEQUENCE {
                   fcipTcpConnLocalPort      InetPortNumber,
                   fcipTcpConnRemPort        InetPortNumber,
                   fcipTcpConnRWSize         Unsigned32,
                   fcipTcpConnMSS            Unsigned32
   }

   fcipTcpConnLocalPort     OBJECT-TYPE
       SYNTAX InetPortNumber
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "The local port number for this TCP connection."
       ::= { fcipTcpConnEntry 1 }

   fcipTcpConnRemPort     OBJECT-TYPE
       SYNTAX InetPortNumber
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "The remote port number for this TCP connection."
       ::= { fcipTcpConnEntry 2 }

   fcipTcpConnRWSize     OBJECT-TYPE
       SYNTAX Unsigned32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
           "The default maximum TCP Receiver Window size for this TCP
            connection."
       ::= { fcipTcpConnEntry 3 }

   fcipTcpConnMSS     OBJECT-TYPE
       SYNTAX Unsigned32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
           "The TCP Maximum Segment Size (MSS) for this TCP connection."
       ::= { fcipTcpConnEntry 4 }

   -- ******************************************************************
   -- The Dynamic Route Table
   --

   fcipDynamicRouteTable OBJECT-TYPE
       SYNTAX SEQUENCE OF FcipDynamicRouteEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "Information about dynamically discovered routing
            information.  The FCIP device may use the SLPv2 protocol in
            conjunction with other protocols (say, FSPF) for dynamically
            discovering other FCIP entities and may populate this table
            with FCIP link information for each Destination Address
            Identifier."
       ::= { fcipConfig 7 }

   fcipDynamicRouteEntry OBJECT-TYPE
       SYNTAX FcipDynamicRouteEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "A conceptual row of the FCIP Dynamic Route Table containing
            information about a particular FCIP route."
       INDEX { fcipEntityId, fcipDynamicRouteDID }
       ::= { fcipDynamicRouteTable 1 }

   FcipDynamicRouteEntry ::=
       SEQUENCE {
                   fcipDynamicRouteDID          FcipDomainIdInOctetForm,
                   fcipDynamicRouteLinkIndex    Unsigned32
               }

   fcipDynamicRouteDID    OBJECT-TYPE
       SYNTAX FcipDomainIdInOctetForm
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "8-bit ID of a Fibre Channel Domain that is reachable from
            this FCIP device."
       ::= { fcipDynamicRouteEntry  1 }

   fcipDynamicRouteLinkIndex    OBJECT-TYPE
       SYNTAX Unsigned32 (1..4294967295)
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
           "The FCIP Link used to reach the domain specified by the

            corresponding instance of fcipDynamicRouteDID.  The link
            identified by a value of this object is the same FCIP link
            as identified by the same value of fcipLinkIndex for the
            same FCIP entity."
       ::= { fcipDynamicRouteEntry  2 }

   -- ******************************************************************
   -- The Static Route Table
   --

   fcipStaticRouteTable OBJECT-TYPE
       SYNTAX SEQUENCE OF FcipStaticRouteEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "Information about static route entries configured by the
            Network Admin.  In the absence of dynamic discovery of
            remote FCIP entities, the Network Manager will figure out
            all remote FCIP devices that are reachable from this device
            and populate this table with FCIP link information for each
            Domain ID.  At any time, both static and dynamic routing
            can be active, and an entry in the static route table for a
            given DID takes precedence over the entry in the dynamic
            route table for the same Domain ID."
       ::= { fcipConfig 8 }

   fcipStaticRouteEntry OBJECT-TYPE
       SYNTAX FcipStaticRouteEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "A conceptual row of the FCIP Static Route Table containing
            information about a particular FCIP route.  The values of
            the read-create objects in this table are persistent across
            system restarts."
       INDEX { fcipEntityId, fcipStaticRouteDID }
       ::= { fcipStaticRouteTable 1 }

   FcipStaticRouteEntry ::=
       SEQUENCE {
                   fcipStaticRouteDID           FcipDomainIdInOctetForm,
                   fcipStaticRouteLinkIndex     Unsigned32,
                   fcipStaticRouteStatus        RowStatus
               }

   fcipStaticRouteDID    OBJECT-TYPE
       SYNTAX FcipDomainIdInOctetForm

       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "8-bit ID of a Fibre Channel Domain that is reachable from
            this FCIP device."
       ::= { fcipStaticRouteEntry  1 }

   fcipStaticRouteLinkIndex    OBJECT-TYPE
       SYNTAX Unsigned32 (1..4294967295)
       MAX-ACCESS read-create
       STATUS current
       DESCRIPTION
           "The FCIP Link used to reach the domain specified by the
            corresponding instance of fcipStaticRouteDID.  The link
            identified by a value of this object is the same FCIP link
            as identified by the same value of fcipLinkIndex for the
            same FCIP entity."
       ::= { fcipStaticRouteEntry  2 }

   fcipStaticRouteStatus   OBJECT-TYPE
       SYNTAX RowStatus
       MAX-ACCESS   read-create
       STATUS   current
       DESCRIPTION
           "This object specifies the operational status of the row.

            When a management station sets the status to active(1),
            the values for the object fcipStaticRouteLinkIndex should be
            supplied as part of the set request.

            Setting the status to destroy(6) deletes the specified FCIP
            static route entry from the table."
       ::= { fcipStaticRouteEntry  3 }

   -- ******************************************************************
   -- The FCIP Discovery Domain Table
   --

   fcipDiscoveryDomainTable OBJECT-TYPE
       SYNTAX SEQUENCE OF FcipDiscoveryDomainEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "Information about FCIP Discovery Domains.  Each FCIP
            Discovery Domain is associated with one or more FCIP
            entities."
       ::= { fcipConfig 9 }

   fcipDiscoveryDomainEntry OBJECT-TYPE
       SYNTAX FcipDiscoveryDomainEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "A conceptual row of the FCIP Discovery Domain Table
            containing information about a particular FCIP Discovery
            Domain that is associated with one or more FCIP entities.
            The values of the read-write object fcipDiscoveryDomainName
            are persistent across system restarts."
       INDEX { fcipEntityId, fcipDiscoveryDomainIndex }
       ::= { fcipDiscoveryDomainTable 1 }

   FcipDiscoveryDomainEntry ::=
       SEQUENCE {
           fcipDiscoveryDomainIndex        Unsigned32,
           fcipDiscoveryDomainName         SnmpAdminString
       }

   fcipDiscoveryDomainIndex OBJECT-TYPE
       SYNTAX     Unsigned32 (1..4294967295)
       MAX-ACCESS not-accessible
       STATUS     current
       DESCRIPTION
           "An integer that uniquely identifies an FCIP Discovery Domain
            associated with this FCIP entity."
       ::= { fcipDiscoveryDomainEntry 1 }

   fcipDiscoveryDomainName   OBJECT-TYPE
       SYNTAX SnmpAdminString (SIZE (0..128))
       MAX-ACCESS read-write
       STATUS current
       DESCRIPTION
           "The name of this FCIP Discovery Domain."
       REFERENCE
           "RFC 3822, Section 4.1.1, FCIP Discovery Domains"
       ::= { fcipDiscoveryDomainEntry 2 }

   -- ******************************************************************
   -- The FCIP Link Errors
   --

   fcipLinkErrorsTable OBJECT-TYPE
       SYNTAX SEQUENCE OF FcipLinkErrorsEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "A list of error counters for FCIP Links.  Each counter
            records the number of times a particular error happened that
            caused a TCP connection to close down."
       REFERENCE
           "RFC 3821, Section 5.2, FCIP Link"
       ::= { fcipConfig 10 }

   fcipLinkErrorsEntry OBJECT-TYPE
       SYNTAX FcipLinkErrorsEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
           "A conceptual row of the FCIP Link Errors Table containing
            error counters for an FCIP Link."
       INDEX { fcipEntityId, fcipLinkIndex }
       ::= { fcipLinkErrorsTable 1 }

   FcipLinkErrorsEntry ::=
       SEQUENCE {
           fcipLinkFcipLossofFcSynchs            Counter32,
           fcipLinkFcipEncapErrors               Counter32,
           fcipLinkFcipNotReceivedSfResps        Counter32,
           fcipLinkFcipSfRespMismatches          Counter32,
           fcipLinkFcipSfInvalidNonces           Counter32,
           fcipLinkFcipReceivedSfDuplicates      Counter32,
           fcipLinkFcipSfInvalidWWNs             Counter32,
           fcipLinkFcipBB2LkaTimeOuts            Counter32,
           fcipLinkFcipSntpExpiredTimeStamps     Counter32,
           fcipLinkTcpTooManyErrors              Counter32,
           fcipLinkTcpExcessiveDroppedDatagrams  Counter32,
           fcipLinkTcpSaParamMismatches          Counter32
       }

   fcipLinkFcipLossofFcSynchs OBJECT-TYPE
       SYNTAX     Counter32
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The number of times FC synchronization was lost on this FCIP

            Link.  The last discontinuity of this counter is indicated
            by fcipLinkCreateTime."
       ::= { fcipLinkErrorsEntry 1 }

   fcipLinkFcipEncapErrors OBJECT-TYPE
       SYNTAX     Counter32
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The number of FCIP frames received with encapsulation errors
            such as improper header, format, or length.  The last
            discontinuity of this counter is indicated by
            fcipLinkCreateTime."
       ::= { fcipLinkErrorsEntry 2 }

   fcipLinkFcipNotReceivedSfResps OBJECT-TYPE
       SYNTAX     Counter32
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The number of times an FCIP Special Frame Response was
            expected but not received on this FCIP Link.  The last
            discontinuity of this counter is indicated by
            fcipLinkCreateTime."
       ::= { fcipLinkErrorsEntry 3 }

   fcipLinkFcipSfRespMismatches OBJECT-TYPE
       SYNTAX     Counter32
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The number of times FCIP Special Frame Bytes mismatch
            happened on this FCIP Link.  The last discontinuity of this
            counter is indicated by fcipLinkCreateTime."
       ::= { fcipLinkErrorsEntry 4 }

   fcipLinkFcipSfInvalidNonces OBJECT-TYPE
       SYNTAX     Counter32
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The number of times FCIP Special Frame Invalid Connection
            Nonce happened on this FCIP Link.  The last discontinuity
            of this counter is indicated by fcipLinkCreateTime."
       ::= { fcipLinkErrorsEntry 5 }

   fcipLinkFcipReceivedSfDuplicates OBJECT-TYPE
       SYNTAX     Counter32

       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The number of times duplicate FCIP Special Frames were
            received on this FCIP Link.  The last discontinuity of this
            counter is indicated by fcipLinkCreateTime."
       ::= { fcipLinkErrorsEntry 6 }

   fcipLinkFcipSfInvalidWWNs OBJECT-TYPE
       SYNTAX     Counter32
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The number of times FCIP Special Frames with invalid
            destination FC Fabric Entity WWN were received on this FCIP
            Link.  The last discontinuity of this counter is indicated
            by fcipLinkCreateTime."
       ::= { fcipLinkErrorsEntry 7 }

   fcipLinkFcipBB2LkaTimeOuts OBJECT-TYPE
       SYNTAX     Counter32
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The number of FC Keep Alive Time-outs that occurred on
            this FCIP Link.  The last discontinuity of this counter
            is indicated by fcipLinkCreateTime."
       ::= { fcipLinkErrorsEntry 8 }

   fcipLinkFcipSntpExpiredTimeStamps OBJECT-TYPE
       SYNTAX     Counter32
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The number of frames discarded due to an expired Simple
            Network Time Protocol (SNTP) timestamp on this FCIP Link.
            The last discontinuity of this counter is indicated by
            fcipLinkCreateTime."
       ::= { fcipLinkErrorsEntry 9 }

   fcipLinkTcpTooManyErrors OBJECT-TYPE
       SYNTAX     Counter32
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The number of TCP connections that closed down on this
            FCIP Link due to too many errors on the connection.  The
            last discontinuity of this counter is indicated by

            fcipLinkCreateTime."
       ::= { fcipLinkErrorsEntry 10  }

   fcipLinkTcpExcessiveDroppedDatagrams OBJECT-TYPE
       SYNTAX     Counter32
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The number of TCP connections that closed down on this
            FCIP Link due to an excessive number of dropped FCIP
            packets.  The last discontinuity of this counter is
            indicated by fcipLinkCreateTime."
       ::= { fcipLinkErrorsEntry 11  }

   fcipLinkTcpSaParamMismatches OBJECT-TYPE
       SYNTAX     Counter32
       MAX-ACCESS read-only
       STATUS     current
       DESCRIPTION
           "The number of times TCP connections with Security
            Association parameter mismatches were closed down on this
            FCIP Link.  The last discontinuity of this counter is
            indicated by fcipLinkCreateTime."
       REFERENCE
           "RFC 3821, Section 9.4.2, TCP Connection Security
            Associations (SAs)"
       ::= { fcipLinkErrorsEntry 12  }

   -- ******************************************************************
   -- Conformance Statements
   --

   fcipCompliances   OBJECT IDENTIFIER ::= { fcipConformance 1 }
   fcipGroups        OBJECT IDENTIFIER ::= { fcipConformance 2 }

   fcipCompliance MODULE-COMPLIANCE
       STATUS current
       DESCRIPTION
           "Compliance statement for FCIP MIB."
       MODULE       -- this module
           MANDATORY-GROUPS {
               fcipEntityScalarGroup,
               fcipEntityInstanceGroup,
               fcipLinkGroup,
               fcipTcpConnGroup,
               fcipDiscoveryDomainGroup,
               fcipLinkErrorsGroup

           }

           GROUP   fcipDynamicRouteGroup
           DESCRIPTION
               "This group is mandatory only for systems that do not
                have these objects in any other FC MIB.  It may be
                implemented even in that case for convenience."

           GROUP   fcipStaticRouteGroup
           DESCRIPTION
               "This group is mandatory only for systems that do not
                have these objects in any other FC MIB.  It may be
                implemented even in that case for convenience."

          OBJECT   fcipEntityAddressType
          SYNTAX   INTEGER { ipv4(1), ipv6(2) }
          DESCRIPTION
              "Only IPv4 and IPv6 address types need to be supported for
               addressing FCIP entities."

          OBJECT   fcipEntityAddress
          SYNTAX   InetAddress (SIZE(4|16))
          DESCRIPTION
              "Size of FCIP entity's IP address depends on address type.
               FCIP entity address size is four if the IP address is
               IPv4 and sixteen if the IP address type is IPv6."

          OBJECT   fcipLinkLocalFcipEntityAddressType
          SYNTAX   INTEGER { ipv4(1), ipv6(2) }
          DESCRIPTION
              "Only IPv4 and IPv6 address types need to be supported for
               addressing the local FCIP entities."

          OBJECT   fcipLinkLocalFcipEntityAddress
          SYNTAX   InetAddress (SIZE(4|16))
          DESCRIPTION
              "Size of FCIP entity's IP address depends on address type.
               FCIP entity address size is four if the IP address is
               IPv4 and sixteen if the IP address type is IPv6."

          OBJECT   fcipLinkRemFcipEntityAddressType
          SYNTAX   INTEGER { ipv4(1), ipv6(2) }
          DESCRIPTION
              "Only IPv4 and IPv6 address types need to be supported for
               addressing the remote FCIP entities."

          OBJECT   fcipLinkRemFcipEntityAddress
          SYNTAX   InetAddress (SIZE(4|16))

          DESCRIPTION
              "Size of FCIP entity's IP address depends on the address
               type.  FCIP entity address size is four if the IP address
               is IPv4 and sixteen if the IP address type is IPv6."

       ::= { fcipCompliances 1 }

   fcipEntityScalarGroup OBJECT-GROUP
       OBJECTS {   fcipDynIpConfType,
                   fcipDeviceWWN,
                   fcipEntitySACKOption
       }
       STATUS current
       DESCRIPTION
           "Collection of scalar objects applicable to all FCIP
            instances."
   ::= { fcipGroups 1 }

   fcipEntityInstanceGroup OBJECT-GROUP
       OBJECTS {
                   fcipEntityName,
                   fcipEntityAddressType,
                   fcipEntityAddress,
                   fcipEntityTcpConnPort,
                   fcipEntitySeqNumWrap,
                   fcipEntityPHBSupport,
                   fcipEntityStatus
       }
       STATUS current
       DESCRIPTION
           "A collection of objects providing information about FCIP
            instances."
   ::= { fcipGroups 2 }

   fcipLinkGroup OBJECT-GROUP
       OBJECTS {
                   fcipLinkIfIndex,
                   fcipLinkCost,
                   fcipLinkLocalFcipEntityMode,
                   fcipLinkLocalFcipEntityAddressType,
                   fcipLinkLocalFcipEntityAddress,
                   fcipLinkRemFcipEntityWWN,
                   fcipLinkRemFcipEntityId,
                   fcipLinkRemFcipEntityAddressType,
                   fcipLinkRemFcipEntityAddress,
                   fcipLinkStatus,
                   fcipLinkCreateTime
       }

       STATUS current
       DESCRIPTION
           "A collection of objects providing information about FCIP
            Links."
   ::= { fcipGroups 3 }

   fcipTcpConnGroup OBJECT-GROUP
       OBJECTS {
                   fcipTcpConnRWSize,
                   fcipTcpConnMSS
       }
       STATUS current
       DESCRIPTION
           "A collection of objects providing information about FCIP
            TCP connections."
   ::= { fcipGroups 4 }

   fcipDiscoveryDomainGroup OBJECT-GROUP
       OBJECTS {
                   fcipDiscoveryDomainName
       }
       STATUS current
       DESCRIPTION
           "A collection of objects providing information about FCIP
            Discovery Domains."
   ::= { fcipGroups 5 }

   fcipLinkErrorsGroup OBJECT-GROUP
       OBJECTS {
           fcipLinkFcipLossofFcSynchs,
           fcipLinkFcipEncapErrors,
           fcipLinkFcipNotReceivedSfResps,
           fcipLinkFcipSfRespMismatches,
           fcipLinkFcipSfInvalidNonces,
           fcipLinkFcipReceivedSfDuplicates,
           fcipLinkFcipSfInvalidWWNs,
           fcipLinkFcipBB2LkaTimeOuts,
           fcipLinkFcipSntpExpiredTimeStamps,
           fcipLinkTcpTooManyErrors,
           fcipLinkTcpExcessiveDroppedDatagrams,
           fcipLinkTcpSaParamMismatches
       }
       STATUS current
       DESCRIPTION
           "A collection of objects providing information about FCIP
            link errors."
   ::= { fcipGroups 6 }

   fcipDynamicRouteGroup OBJECT-GROUP
       OBJECTS {
                   fcipDynamicRouteLinkIndex
       }
       STATUS current
       DESCRIPTION
           "A collection of objects providing information about FCIP
            dynamic routes."
   ::= { fcipGroups 7 }

   fcipStaticRouteGroup OBJECT-GROUP
       OBJECTS {
                   fcipStaticRouteLinkIndex,
                   fcipStaticRouteStatus
       }
       STATUS current
       DESCRIPTION
           "A collection of objects providing information about FCIP
            static routes."
   ::= { fcipGroups 8 }

   END

5.  Security Considerations

   There are a number of management objects defined in this MIB that
   have a MAX-ACCESS clause of read-write and/or read-create.  Such
   objects may be considered sensitive or vulnerable in some network
   environments.  The support for SET operations in a non-secure
   environment without proper protection can have a negative effect on
   network operations.  In particular, write access to
   fcipDiscoveryDomainName and fcipEntityAddress can cause a loss of
   reachability to portions of the Fibre Channel fabric, while write
   access to fcipStaticRouteStatus can create incorrect routes to remote
   devices.

   There are a number of managed objects in this MIB that contain what
   could be considered as sensitive information.  In particular, the
   objects which provide information on identification and network
   topology:

   fcipDeviceWWN, fcipEntityName, fcipEntityAddress,
   fcipLinkLocalFcipEntityAddress, fcipLinkRemFcipEntityWWN,
   and fcipLinkRemFcipEntityAddress
   -- information on identification;

   fcipDiscoveryDomainName
   -- information on discovery domains;

   fcipDynamicRouteLinkIndex
   -- information on dynamic routes;

   fcipStaticRouteLinkIndex and fcipStaticRouteStatus
   -- information on static routes

   SNMP versions prior to SNMPv3 did not include adequate security.
   Even if the network itself is secure (for example by using IPSec),
   even then, there is no control as to who on the secure network is
   allowed to access and GET/SET (read/change/create/delete) the objects
   in this MIB module.

   It is RECOMMENDED that implementers consider the security features as
   provided by the SNMPv3 framework (see [RFC3410], section 8),
   including full support for the SNMPv3 cryptographic mechanisms (for
   authentication and privacy).

   Further, deployment of SNMP versions prior to SNMPv3 is NOT
   RECOMMENDED.  Instead, it is RECOMMENDED to deploy SNMPv3 and to
   enable cryptographic security.  It is then a customer/operator
   responsibility to ensure that the SNMP entity giving access to an
   instance of this MIB module is properly configured to give access to

   the objects only to those principals (users) that have legitimate
   rights to indeed GET or SET (change/create/delete) them.

6.  IANA Considerations

   The IANA has assigned a MIB OID assignment under the transmission
   branch.  Specifically, { transmission 224 } for fcipMIB since this
   MIB contains the media-specific definitions that correspond to the
   ifType value of fcipLink(224).

7.  Acknowledgements

   The authors acknowledge significant feedback and guidance from NM
   Area advisor Keith McCloghrie, Cisco.  Comments and input from
   members of the FCIP Working Group have also been incorporated.

8.  Normative References

   [RFC3821]   Rajagopal, M., Rodriguez, E., and R. Weber, "Fibre
               Channel Over TCP/IP (FCIP)", RFC 3821, July 2004.

   [FCBB2]     Fibre Channel Backbone -2 v6 (FC-BB-2), T11/03-078v0,
               February 2003.

   [FC-SW-3]   Fibre Channel Switch Fabric -3 (FC-SW-3), T11/03-018v4,
               December 2003.

   [RFC4044]   McCloghrie, K., "Fibre Channel Management MIB", RFC 4044,
               May 2005.

   [RFC2863]   McCloghrie, K. and F. Kastenholz, "The Interfaces Group
               MIB", RFC 2863, June 2000.

   [RFC2578]   McCloghrie, K., Perkins, D., and J. Schoenwaelder,
               "Structure of Management Information Version 2 (SMIv2)",
               STD 58, RFC 2578, April 1999.

   [RFC3411]   Harrington, D., Presuhn, R., and B. Wijnen, "An
               Architecture for Describing Simple Network Management
               Protocol (SNMP) Management Frameworks", STD 62, RFC 3411,
               December 2002.

   [RFC2579]   McCloghrie, K., Perkins, D., and J. Schoenwaelder,
               "Textual Conventions for SMIv2", STD 58, RFC 2579, April
               1999.

   [RFC2580]   McCloghrie, K., Perkins, D., and J. Schoenwaelder,
               "Conformance Statements for SMIv2", STD 58, RFC 2580,
               April 1999.

   [RFC2474]   Nichols, K., Blake, S., Baker, F., and D. Black,
               "Definition of the Differentiated Services Field (DS
               Field) in the IPv4 and IPv6 Headers", RFC 2474, December
               1998.

   [RFC4022]   Raghunarayan, R., "Management Information Base for the
               Transmission Control Protocol (TCP)", RFC 4022, March
               2005.

   [RFC3822]   Peterson, D., "Finding Fibre Channel over TCP/IP (FCIP)
               Entities Using Service Location Protocol version 2
               (SLPv2)", RFC 3822, July 2004.

   [RFC2883]   Floyd, S., Mahdavi, J., Mathis, M., and M. Podolsky, "An
               Extension to the Selective Acknowledgement (SACK) Option
               for TCP", RFC 2883, July 2000.

   [RFC1323]   Jacobson, V., Braden, R., and D. Borman, "TCP Extensions
               for High Performance", RFC 1323, May 1992.

   [RFC4001]   Daniele, M., Haberman, B., Routhier, S., and J.
               Schoenwaelder, "Textual Conventions for Internet Network
               Addresses", RFC 4001, February 2005.

9.  Informative References

   [RFC3410]   Case, J., Mundy, R., Partain, D., and B. Stewart,
               "Introduction and Applicability Statements for Internet-
               Standard Management Framework", RFC 3410, December 2002.

Authors' Addresses

   Anil Rijhsinghani
   Accton Technology Corporation
   5 Mount Royal Ave
   Marlboro, MA 01752
   USA

   EMail: anil@charter.net

   Ravi Natarajan
   F5 Networks
   2460 North First Street, Suite 100
   San Jose, CA 95131
   USA

   EMail: r.natarajan@f5.com

Full Copyright Statement

   Copyright (C) The Internet Society (2006).

   This document is subject to the rights, licenses and restrictions
   contained in BCP 78, and except as set forth therein, the authors
   retain all their rights.

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   "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS
   OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET
   ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED,
   INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE
   INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED
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