rfc4369
Network Working Group K. Gibbons
Request for Comments: 4369 McDATA Corporation
Category: Standards Track C. Monia
Consultant
J. Tseng
Riverbed Technology
F. Travostino
Nortel
January 2006
Definitions of Managed Objects for
Internet Fibre Channel Protocol (iFCP)
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
The iFCP protocol (RFC 4172) provides Fibre Channel fabric
functionality on an IP network in which TCP/IP switching and routing
elements replace Fibre Channel components. The iFCP protocol is used
between iFCP Gateways. This document provides a mechanism to monitor
and control iFCP Gateway instances, and their associated sessions,
using SNMP.
Table of Contents
1. The Internet-Standard Management Framework ......................2
2. Introduction ....................................................2
3. Technical Description ...........................................3
4. MIB Definition ..................................................4
5. IANA Considerations ............................................25
6. Security Considerations ........................................25
7. Normative References ...........................................26
8. Informative References .........................................27
Gibbons, et al. Standards Track [Page 1]
RFC 4369 iFCP MIB January 2006
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. Introduction
The iFCP protocol can be used by FC-to-IP-based storage gateways for
Fibre Channel Protocol (FCP) storage interconnects. Figure 1
provides an example of an interconnect between iFCP gateways.
Gateway Region Gateway Region
+--------+ +--------+ +--------+ +--------+
| FC | | FC | | FC | | FC |
| Device | | Device | | Device | | Device | Fibre
|........| |........| FC |........| |........| Channel
| N_PORT | | N_PORT |<.........>| N_PORT | | N_PORT | Device
+---+----+ +---+----+ Traffic +----+---+ +----+---+ Domain
| | | | ^
+---+----+ +---+----+ +----+---+ +----+---+ |
| F_PORT | | F_PORT | | F_PORT | | F_PORT | |
=+========+==+========+===========+========+==+========+==========
| iFCP Layer |<--------->| iFCP Layer | |
|....................| ^ |....................| |
| iFCP Portal | | | iFCP Portal | v
+--------+-----------+ | +----------+---------+ IP
iFCP|Gateway Control iFCP|Gateway Network
| Data |
| |
| |
|<------Encapsulated Frames------->|
| +------------------+ |
| | | |
+------+ IP Network +--------+
| |
+------------------+
Figure 1: Interconnect between iFCP Gateways
Gibbons, et al. Standards Track [Page 2]
RFC 4369 iFCP MIB January 2006
The iFCP MIB Module is designed to allow SNMP to be used to monitor
and manage local iFCP gateway instances, including the configuration
of iFCP sessions between gateways.
3. Technical Description
The iFCP MIB Module is divided into sections for iFCP local gateway
instance management, iFCP session management, and iFCP session
statistics.
The section for iFCP gateway management provides default settings and
information about each local instance. A single management entity
can monitor multiple local gateway instances. Each local gateway is
conceptually an independent gateway that has both Fibre Channel and
IP interfaces. The default IP Time Out Value (IP_TOV) is
configurable for each gateway. Other standard MIBs, such as the
Fibre Management MIB [RFC4044] or Interfaces Group MIB [RFC2863], can
be used to manage non-iFCP-specific gateway parameters. The local
gateway instance section provides iFCP-specific information as well
as optional links to other standard management MIBs.
The iFCP session management section provides information on iFCP
sessions that use one of the local iFCP gateway instances. This
section allows the management of specific iFCP parameters, including
changing the IP_TOV from the default setting of the gateway.
The iFCP session statistics section provides statistical information
on the iFCP sessions that use one of the local iFCP gateways. These
tables augment the session management table. Additional statistical
information for an iFCP gateway or session, that is not
iFCP-specific, can be obtained using other standard MIBs. The iFCP
statistics are provided in both standard and low-capacity (counter32)
methods.
The following MIB module imports from RMON2-MIB [RFC2021], SNMPv2-SMI
[RFC2578], SNMPv2-TC [RFC2579], SNMPv2-CONF [RFC2580], HCNUM-TC
[RFC2856], IF-MIB [RFC2863], SNMP-FRAMEWORK-MIB [RFC3411], INET-
ADDRESS-MIB [RFC4001], FC-MGMT-MIB [RFC4044], and ENTITY-MIB (v3)
[RFC4133].
Gibbons, et al. Standards Track [Page 3]
RFC 4369 iFCP MIB January 2006
4. MIB Definition
IFCP-MGMT-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY,
OBJECT-TYPE,
Gauge32,
Integer32,
Unsigned32,
transmission
FROM SNMPv2-SMI
OBJECT-GROUP,
MODULE-COMPLIANCE
FROM SNMPv2-CONF
TEXTUAL-CONVENTION,
TimeStamp,
TruthValue,
StorageType
FROM SNMPv2-TC
-- From RFC 2021
ZeroBasedCounter32
FROM RMON2-MIB
-- From RFC 2856
ZeroBasedCounter64
FROM HCNUM-TC
-- From RFC 2863
InterfaceIndexOrZero
FROM IF-MIB
-- From RFC 3411
SnmpAdminString
FROM SNMP-FRAMEWORK-MIB
-- From RFC 4001
InetAddressType,
InetAddress,
InetPortNumber
FROM INET-ADDRESS-MIB
-- From RFC 4044
FcNameIdOrZero,
FcAddressIdOrZero
Gibbons, et al. Standards Track [Page 4]
RFC 4369 iFCP MIB January 2006
FROM FC-MGMT-MIB
-- From RFC 4133
PhysicalIndexOrZero
FROM ENTITY-MIB
;
ifcpMgmtMIB MODULE-IDENTITY
LAST-UPDATED "200601170000Z"
ORGANIZATION "IETF IPS Working Group"
CONTACT-INFO "
Attn: Kevin Gibbons
McDATA Corporation
4555 Great America Pkwy
Santa Clara, CA 95054-1208 USA
Phone: (408) 567-5765
EMail: kevin.gibbons@mcdata.com
Charles Monia
Consultant
7553 Morevern Circle
San Jose, CA 95135 USA
EMail: charles_monia@yahoo.com
Josh Tseng
Riverbed Technology
501 2nd Street, Suite 410
San Francisco, CA 94107 USA
Phone: (650) 274-2109
EMail: joshtseng@yahoo.com
Franco Travostino
Nortel
600 Technology Park Drive
Billerica, MA 01821 USA
Phone: (978) 288-7708
EMail: travos@nortel.com"
DESCRIPTION
"This module defines management information specific
to internet Fibre Channel Protocol (iFCP) gateway
management.
Copyright (C) The Internet Society 2006. This
version of this MIB module is part of RFC 4369; see
the RFC itself for full legal notices."
REVISION "200601170000Z"
DESCRIPTION
Gibbons, et al. Standards Track [Page 5]
RFC 4369 iFCP MIB January 2006
"Initial version of iFCP Management Module.
This MIB published as RFC 4369."
::= { transmission 230 }
--
-- Textual Conventions
--
IfcpIpTOVorZero ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION "The maximum propagation delay, in seconds,
for an encapsulated FC frame to traverse the
IP network. A value of 0 implies fibre
channel frame lifetime limits will not be
enforced."
REFERENCE "RFC 4172, iFCP Protocol Specification"
SYNTAX Unsigned32 (0..3600)
IfcpLTIorZero ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION "The value for the Liveness Test Interval
(LTI) being used in an iFCP connection, in
seconds. A value of 0 implies no Liveness
Test Interval will be used."
REFERENCE "RFC 4172, iFCP Protocol Specification"
SYNTAX Unsigned32 (0..65535)
IfcpSessionStates ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION "The value for an iFCP session state."
SYNTAX INTEGER {down(1), openPending(2), open(3)}
IfcpAddressMode ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION "The values for iFCP Address Translation
Mode."
REFERENCE "RFC 4172, iFCP Protocol Specification"
SYNTAX INTEGER {addressTransparent(1),
addressTranslation(2)}
--
-- Internet Fibre Channel Protocol (iFCP)
--
ifcpGatewayObjects OBJECT IDENTIFIER ::= {ifcpMgmtMIB 1}
ifcpGatewayConformance OBJECT IDENTIFIER ::= {ifcpMgmtMIB 2}
Gibbons, et al. Standards Track [Page 6]
RFC 4369 iFCP MIB January 2006
--
-- Local iFCP Gateway Instance Information ==================
--
ifcpLclGatewayInfo OBJECT IDENTIFIER ::= {ifcpGatewayObjects 1}
ifcpLclGtwyInstTable OBJECT-TYPE
SYNTAX SEQUENCE OF IfcpLclGtwyInstEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Information about all local iFCP Gateway instances that can
be monitored and controlled. This table contains an entry
for each local iFCP Gateway instance that is being managed."
::= {ifcpLclGatewayInfo 1}
ifcpLclGtwyInstEntry OBJECT-TYPE
SYNTAX IfcpLclGtwyInstEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the local iFCP Gateway Instance table.
Parameters and settings for the gateway are found here."
INDEX { ifcpLclGtwyInstIndex }
::= {ifcpLclGtwyInstTable 1}
IfcpLclGtwyInstEntry ::= SEQUENCE {
ifcpLclGtwyInstIndex Unsigned32,
ifcpLclGtwyInstPhyIndex PhysicalIndexOrZero,
ifcpLclGtwyInstVersionMin Unsigned32,
ifcpLclGtwyInstVersionMax Unsigned32,
ifcpLclGtwyInstAddrTransMode IfcpAddressMode,
ifcpLclGtwyInstFcBrdcstSupport TruthValue,
ifcpLclGtwyInstDefaultIpTOV IfcpIpTOVorZero,
ifcpLclGtwyInstDefaultLTInterval IfcpLTIorZero,
ifcpLclGtwyInstDescr SnmpAdminString,
ifcpLclGtwyInstNumActiveSessions Gauge32,
ifcpLclGtwyInstStorageType StorageType
}
ifcpLclGtwyInstIndex OBJECT-TYPE
SYNTAX Unsigned32 (1..2147483647)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An arbitrary integer value to uniquely identify this iFCP
Gateway from other local Gateway instances."
Gibbons, et al. Standards Track [Page 7]
RFC 4369 iFCP MIB January 2006
::= {ifcpLclGtwyInstEntry 1}
ifcpLclGtwyInstPhyIndex OBJECT-TYPE
SYNTAX PhysicalIndexOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An index indicating the location of this local gateway within
a larger entity, if one exists. If supported, this is the
entPhysicalIndex from the Entity MIB (Version 3), for this
iFCP Gateway. If not supported, or if not related to a
physical entity, then the value of this object is 0."
REFERENCE "Entity MIB (Version 3)"
::= {ifcpLclGtwyInstEntry 2}
ifcpLclGtwyInstVersionMin OBJECT-TYPE
SYNTAX Unsigned32 (0..255)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The minimum iFCP protocol version supported by the local iFCP
gateway instance."
REFERENCE "RFC 4172, iFCP Protocol Specification"
::= {ifcpLclGtwyInstEntry 3}
ifcpLclGtwyInstVersionMax OBJECT-TYPE
SYNTAX Unsigned32 (0..255)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum iFCP protocol version supported by the local iFCP
gateway instance."
REFERENCE "RFC 4172, iFCP Protocol Specification"
::= {ifcpLclGtwyInstEntry 4}
ifcpLclGtwyInstAddrTransMode OBJECT-TYPE
SYNTAX IfcpAddressMode
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The local iFCP gateway operating mode. Changing this value
may cause existing sessions to be disrupted."
REFERENCE "RFC 4172, iFCP Protocol Specification"
DEFVAL { addressTranslation }
::= {ifcpLclGtwyInstEntry 5}
ifcpLclGtwyInstFcBrdcstSupport OBJECT-TYPE
SYNTAX TruthValue
Gibbons, et al. Standards Track [Page 8]
RFC 4369 iFCP MIB January 2006
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Whether the local iFCP gateway supports FC Broadcast.
Changing this value may cause existing sessions to be
disrupted."
REFERENCE "RFC 4172, iFCP Protocol Specification"
DEFVAL { false }
::= {ifcpLclGtwyInstEntry 6}
ifcpLclGtwyInstDefaultIpTOV OBJECT-TYPE
SYNTAX IfcpIpTOVorZero
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The default IP_TOV used for iFCP sessions at this gateway.
This is the default maximum propagation delay that will be
used for an iFCP session. The value can be changed on a
per-session basis. The valid range is 0 - 3600 seconds.
A value of 0 implies that fibre channel frame lifetime limits
will not be enforced."
REFERENCE "RFC 4172, iFCP Protocol Specification"
DEFVAL { 6 }
::= {ifcpLclGtwyInstEntry 7}
ifcpLclGtwyInstDefaultLTInterval OBJECT-TYPE
SYNTAX IfcpLTIorZero
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The default Liveness Test Interval (LTI), in seconds, used
for iFCP sessions at this gateway. This is the default
value for an iFCP session and can be changed on a
per-session basis. The valid range is 0 - 65535 seconds.
A value of 0 implies no Liveness Test Interval will be
performed on a session."
REFERENCE "RFC 4172, iFCP Protocol Specification"
DEFVAL { 10 }
::= {ifcpLclGtwyInstEntry 8}
ifcpLclGtwyInstDescr OBJECT-TYPE
SYNTAX SnmpAdminString (SIZE (0..64))
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A user-entered description for this iFCP Gateway."
DEFVAL { "" }
::= {ifcpLclGtwyInstEntry 9}
Gibbons, et al. Standards Track [Page 9]
RFC 4369 iFCP MIB January 2006
ifcpLclGtwyInstNumActiveSessions OBJECT-TYPE
SYNTAX Gauge32 (0..4294967295)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current total number of iFCP sessions in the open or
open-pending state."
::= {ifcpLclGtwyInstEntry 10}
ifcpLclGtwyInstStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The storage type for this row. Parameter values defined
for a gateway are usually non-volatile, but may be volatile
or permanent in some configurations. If permanent, then
the following parameters must have read-write access:
ifcpLclGtwyInstAddrTransMode, ifcpLclGtwyInstDefaultIpTOV,
and ifcpLclGtwyInstDefaultLTInterval."
DEFVAL { nonVolatile }
::= {ifcpLclGtwyInstEntry 11}
--
-- iFCP N Port Session Information ============================
--
ifcpNportSessionInfo
OBJECT IDENTIFIER ::= {ifcpGatewayObjects 2}
ifcpSessionAttributesTable OBJECT-TYPE
SYNTAX SEQUENCE OF
IfcpSessionAttributesEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An iFCP session consists of the pair of N_PORTs comprising
the session endpoints joined by a single TCP/IP connection.
This table provides information on each iFCP session
currently using a local iFCP Gateway instance. iFCP sessions
are created and removed by the iFCP Gateway instances, which
are reflected in this table."
::= {ifcpNportSessionInfo 1}
ifcpSessionAttributesEntry OBJECT-TYPE
SYNTAX IfcpSessionAttributesEntry
MAX-ACCESS not-accessible
Gibbons, et al. Standards Track [Page 10]
RFC 4369 iFCP MIB January 2006
STATUS current
DESCRIPTION
"Each entry contains information about one iFCP session consisting
of a pair of N_PORTs joined by a single TCP/IP connection. This
table's INDEX includes ifcpLclGtwyInstIndex, which identifies the
local iFCP Gateway instance that created the session for the
entry.
Soon after an entry is created in this table for an iFCP session, it
will correspond to an entry in the tcpConnectionTable of the TCP-MIB
(RFC 4022). The corresponding entry might represent a preexisting
TCP connection, or it might be a newly-created entry. (Note that if
IPv4 is being used, an entry in RFC 2012's tcpConnTable may also
correspond.) The values of ifcpSessionLclPrtlAddrType and
ifcpSessionRmtPrtlIfAddrType in this table and the values of
tcpConnectionLocalAddressType and tcpConnectionRemAddressType used
as INDEX values for the corresponding entry in the
tcpConnectionTable should be the same; this makes it simpler to
locate a session's TCP connection in the TCP-MIB. (Of course, all
four values need to be 'ipv4' if there's a corresponding entry in
the tcpConnTable.)
If an entry is created in this table for a session, prior to
knowing which local and/or remote port numbers will be used for
the TCP connection, then ifcpSessionLclPrtlTcpPort and/or
ifcpSessionRmtPrtlTcpPort have the value zero until such time as
they can be updated to the port numbers (to be) used for the
connection. (Thus, a port value of zero should not be used to
locate a session's TCP connection in the TCP-MIB.)
When the TCP connection terminates, the entry in the
tcpConnectionTable and the entry in this table both get deleted
(and, if applicable, so does the entry in the tcpConnTable)."
INDEX { ifcpLclGtwyInstIndex, ifcpSessionIndex }
::= {ifcpSessionAttributesTable 1}
IfcpSessionAttributesEntry ::= SEQUENCE {
ifcpSessionIndex Integer32,
ifcpSessionLclPrtlIfIndex InterfaceIndexOrZero,
ifcpSessionLclPrtlAddrType InetAddressType,
ifcpSessionLclPrtlAddr InetAddress,
ifcpSessionLclPrtlTcpPort InetPortNumber,
ifcpSessionLclNpWwun FcNameIdOrZero,
ifcpSessionLclNpFcid FcAddressIdOrZero,
ifcpSessionRmtNpWwun FcNameIdOrZero,
ifcpSessionRmtPrtlIfAddrType InetAddressType,
ifcpSessionRmtPrtlIfAddr InetAddress,
ifcpSessionRmtPrtlTcpPort InetPortNumber,
Gibbons, et al. Standards Track [Page 11]
RFC 4369 iFCP MIB January 2006
ifcpSessionRmtNpFcid FcAddressIdOrZero,
ifcpSessionRmtNpFcidAlias FcAddressIdOrZero,
ifcpSessionIpTOV IfcpIpTOVorZero,
ifcpSessionLclLTIntvl IfcpLTIorZero,
ifcpSessionRmtLTIntvl IfcpLTIorZero,
ifcpSessionBound TruthValue,
ifcpSessionStorageType StorageType
}
ifcpSessionIndex OBJECT-TYPE
SYNTAX Integer32 (1..2147483647)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The iFCP session index is a unique value used as an index
to the table, along with a specific local iFCP Gateway
instance. This index is used because the local N Port and
remote N Port information would create an complex index that
would be difficult to implement."
::= {ifcpSessionAttributesEntry 1}
ifcpSessionLclPrtlIfIndex OBJECT-TYPE
SYNTAX InterfaceIndexOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This is the interface index in the IF-MIB ifTable being used
as the local portal in this session, as described in the
IF-MIB. If the local portal is not associated with an entry
in the ifTable, then the value is 0. The ifType of the
interface will generally be a type that supports IP, but an
implementation may support iFCP using other protocols. This
object can be used to obtain additional information about the
interface."
REFERENCE "RFC 2863, The Interfaces Group MIB (IF-MIB)"
::= {ifcpSessionAttributesEntry 2}
ifcpSessionLclPrtlAddrType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The type of address in ifcpSessionLclIfAddr."
::= {ifcpSessionAttributesEntry 3}
ifcpSessionLclPrtlAddr OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
Gibbons, et al. Standards Track [Page 12]
RFC 4369 iFCP MIB January 2006
STATUS current
DESCRIPTION
"This is the external IP address of the interface being used
for the iFCP local portal in this session. The address type
is defined in ifcpSessionLclPrtlAddrType. If the value is a
DNS name, then the name is resolved once, during the initial
session instantiation."
::= {ifcpSessionAttributesEntry 4}
ifcpSessionLclPrtlTcpPort OBJECT-TYPE
SYNTAX InetPortNumber
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This is the TCP port number that is being used for the iFCP
local portal in this session. This is normally an ephemeral
port number selected by the gateway. The value may be 0
during an initial setup period."
::= {ifcpSessionAttributesEntry 5}
ifcpSessionLclNpWwun OBJECT-TYPE
SYNTAX FcNameIdOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"World Wide Unique Name of the local N Port. For an unbound
session, this variable will be a zero-length string."
REFERENCE "RFC 4172, iFCP Protocol Specification"
DEFVAL { "" }
::= {ifcpSessionAttributesEntry 6}
ifcpSessionLclNpFcid OBJECT-TYPE
SYNTAX FcAddressIdOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Fibre Channel Identifier of the local N Port. For an unbound
session, this variable will be a zero-length string."
REFERENCE "RFC 4172, iFCP Protocol Specification"
::= {ifcpSessionAttributesEntry 7}
ifcpSessionRmtNpWwun OBJECT-TYPE
SYNTAX FcNameIdOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"World Wide Unique Name of the remote N Port. For an unbound
session, this variable will be a zero-length string."
Gibbons, et al. Standards Track [Page 13]
RFC 4369 iFCP MIB January 2006
REFERENCE "RFC 4172, iFCP Protocol Specification"
DEFVAL { "" }
::= {ifcpSessionAttributesEntry 8}
ifcpSessionRmtPrtlIfAddrType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The type of address in ifcpSessionRmtPrtlIfAddr."
::= {ifcpSessionAttributesEntry 9}
ifcpSessionRmtPrtlIfAddr OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This is the remote gateway IP address being used for the
portal on the remote iFCP gateway. The address type is
defined in ifcpSessionRmtPrtlIfAddrType. If the value is a
DNS name, then the name is resolved once, during the initial
session instantiation."
::= {ifcpSessionAttributesEntry 10}
ifcpSessionRmtPrtlTcpPort OBJECT-TYPE
SYNTAX InetPortNumber
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This is the TCP port number being used for the portal on the
remote iFCP gateway. Generally, this will be the iFCP
canonical port. The value may be 0 during an initial setup
period."
DEFVAL { 3420 }
::= {ifcpSessionAttributesEntry 11}
ifcpSessionRmtNpFcid OBJECT-TYPE
SYNTAX FcAddressIdOrZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Fibre Channel Identifier of the remote N Port. For an
unbound session, this variable will be a zero-length string."
REFERENCE "RFC 4172, iFCP Protocol Specification"
::= {ifcpSessionAttributesEntry 12}
ifcpSessionRmtNpFcidAlias OBJECT-TYPE
SYNTAX FcAddressIdOrZero
Gibbons, et al. Standards Track [Page 14]
RFC 4369 iFCP MIB January 2006
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Fibre Channel Identifier Alias assigned by the local gateway
for the remote N Port. For an unbound session, this variable
will be a zero-length string."
REFERENCE "RFC 4172, iFCP Protocol Specification"
::= {ifcpSessionAttributesEntry 13}
ifcpSessionIpTOV OBJECT-TYPE
SYNTAX IfcpIpTOVorZero
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The IP_TOV being used for this iFCP session. This is the
maximum propagation delay that will be used for the iFCP
session. The value can be changed on a per-session basis
and initially defaults to ifcpLclGtwyInstDefaultIpTOV for
the local gateway instance. The valid range is 0 - 3600
seconds. A value of 0 implies fibre channel frame lifetime
limits will not be enforced."
REFERENCE "RFC 4172, iFCP Protocol Specification"
::= {ifcpSessionAttributesEntry 14}
ifcpSessionLclLTIntvl OBJECT-TYPE
SYNTAX IfcpLTIorZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The Liveness Test Interval (LTI) used for this iFCP session.
The value can be changed on a per-session basis and initially
defaults to ifcpLclGtwyInstDefaultLTInterval for the local
gateway instance. The valid range is 0 - 65535 seconds.
A value of 0 implies that the gateway will not originate
Liveness Test messages for the session."
REFERENCE "RFC 4172, iFCP Protocol Specification"
::= {ifcpSessionAttributesEntry 15}
ifcpSessionRmtLTIntvl OBJECT-TYPE
SYNTAX IfcpLTIorZero
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The Liveness Test Interval (LTI) as requested by the remote
gateway instance to use for this iFCP session. This value may
change over the life of the session. The valid range is 0 -
65535 seconds. A value of 0 implies that the remote gateway
has not been requested to originate Liveness Test messages for
Gibbons, et al. Standards Track [Page 15]
RFC 4369 iFCP MIB January 2006
the session."
REFERENCE "RFC 4172, iFCP Protocol Specification"
::= {ifcpSessionAttributesEntry 16}
ifcpSessionBound OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This value indicates whether this session is bound to a
specific local and remote N Port. Sessions by default are
unbound and ready for future assignment to a local and remote
N Port."
REFERENCE "RFC 4172, iFCP Protocol Specification"
::= {ifcpSessionAttributesEntry 17}
ifcpSessionStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The storage type for this row. Parameter values defined
for a session are usually non-volatile, but may be volatile
or permanent in some configurations. If permanent, then
ifcpSessionIpTOV must have read-write access."
DEFVAL { nonVolatile }
::= {ifcpSessionAttributesEntry 18}
--
-- Local iFCP Gateway Instance Session Statistics =============
--
ifcpSessionStatsTable OBJECT-TYPE
SYNTAX SEQUENCE OF
IfcpSessionStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table provides statistics on an iFCP session."
::= {ifcpNportSessionInfo 2}
ifcpSessionStatsEntry OBJECT-TYPE
SYNTAX IfcpSessionStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Provides iFCP-specific statistics per session."
AUGMENTS {ifcpSessionAttributesEntry}
Gibbons, et al. Standards Track [Page 16]
RFC 4369 iFCP MIB January 2006
::= {ifcpSessionStatsTable 1}
IfcpSessionStatsEntry ::= SEQUENCE {
ifcpSessionState IfcpSessionStates,
ifcpSessionDuration Unsigned32,
ifcpSessionTxOctets ZeroBasedCounter64,
ifcpSessionRxOctets ZeroBasedCounter64,
ifcpSessionTxFrames ZeroBasedCounter64,
ifcpSessionRxFrames ZeroBasedCounter64,
ifcpSessionStaleFrames ZeroBasedCounter64,
ifcpSessionHeaderCRCErrors ZeroBasedCounter64,
ifcpSessionFcPayloadCRCErrors ZeroBasedCounter64,
ifcpSessionOtherErrors ZeroBasedCounter64,
ifcpSessionDiscontinuityTime TimeStamp
}
ifcpSessionState OBJECT-TYPE
SYNTAX IfcpSessionStates
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current session operating state."
::= {ifcpSessionStatsEntry 1}
ifcpSessionDuration OBJECT-TYPE
SYNTAX Unsigned32 (0..4294967295)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This indicates, in seconds, how long the iFCP session has
been in an open or open-pending state. When a session is
down, the value is reset to 0."
::= {ifcpSessionStatsEntry 2}
ifcpSessionTxOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of octets transmitted by the iFCP gateway
for this session. Discontinuities in the value of this
counter can occur at reinitialization of the management
system, and at other times as indicated by the value of
ifcpSessionDiscontinuityTime."
::= {ifcpSessionStatsEntry 3}
ifcpSessionRxOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter64
Gibbons, et al. Standards Track [Page 17]
RFC 4369 iFCP MIB January 2006
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of octets received by the iFCP gateway for
this session. Discontinuities in the value of this
counter can occur at reinitialization of the management
system, and at other times as indicated by the value of
ifcpSessionDiscontinuityTime."
::= {ifcpSessionStatsEntry 4}
ifcpSessionTxFrames OBJECT-TYPE
SYNTAX ZeroBasedCounter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of iFCP frames transmitted by the gateway
for this session. Discontinuities in the value of this
counter can occur at reinitialization of the management
system, and at other times as indicated by the value of
ifcpSessionDiscontinuityTime."
::= {ifcpSessionStatsEntry 5}
ifcpSessionRxFrames OBJECT-TYPE
SYNTAX ZeroBasedCounter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of iFCP frames received by the gateway
for this session. Discontinuities in the value of this
counter can occur at reinitialization of the management
system, and at other times as indicated by the value of
ifcpSessionDiscontinuityTime."
::= {ifcpSessionStatsEntry 6}
ifcpSessionStaleFrames OBJECT-TYPE
SYNTAX ZeroBasedCounter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of received iFCP frames that were stale and
discarded by the gateway for this session. Discontinuities
in the value of this counter can occur at reinitialization
of the management system, and at other times as indicated by
the value of ifcpSessionDiscontinuityTime."
::= {ifcpSessionStatsEntry 7}
ifcpSessionHeaderCRCErrors OBJECT-TYPE
SYNTAX ZeroBasedCounter64
Gibbons, et al. Standards Track [Page 18]
RFC 4369 iFCP MIB January 2006
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of CRC errors that occurred in the frame
header, detected by the gateway for this session. Usually,
a single Header CRC error is sufficient to terminate an
iFCP session. Discontinuities in the value of this
counter can occur at reinitialization of the management
system, and at other times as indicated by the value of
ifcpSessionDiscontinuityTime."
::= {ifcpSessionStatsEntry 8}
ifcpSessionFcPayloadCRCErrors OBJECT-TYPE
SYNTAX ZeroBasedCounter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of CRC errors that occurred in the Fibre
Channel frame payload, detected by the gateway for this
session. Discontinuities in the value of this counter can
occur at reinitialization of the management system, and
at other times as indicated by the value of
ifcpSessionDiscontinuityTime."
::= {ifcpSessionStatsEntry 9}
ifcpSessionOtherErrors OBJECT-TYPE
SYNTAX ZeroBasedCounter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of errors, other than errors explicitly
measured, detected by the gateway for this session.
Discontinuities in the value of this counter can occur at
reinitialization of the management system, and at other
times as indicated by the value of
ifcpSessionDiscontinuityTime."
::= {ifcpSessionStatsEntry 10}
ifcpSessionDiscontinuityTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime on the most recent occasion at which
any one (or more) of the ifcpSessionStatsTable counters
suffered a discontinuity. The relevant counters are the
specific Counter64-based instances associated with the
ifcpSessionStatsTable: ifcpSessionTxOctets,
Gibbons, et al. Standards Track [Page 19]
RFC 4369 iFCP MIB January 2006
ifcpSessionRxOctets, ifcpSessionTxFrames,
ifcpSessionRxFrames, ifcpSessionStaleFrames,
ifcpSessionHeaderCRCErrors, ifcpSessionFcPayloadCRCErrors,
and ifcpSessionOtherErrors. If no such discontinuities have
occurred since the last reinitialization of the local
management subsystem, then this object contains a zero value."
::= {ifcpSessionStatsEntry 11}
--
-- Low Capacity Statistics
--
ifcpSessionLcStatsTable OBJECT-TYPE
SYNTAX SEQUENCE OF
IfcpSessionLcStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table provides low capacity statistics for an iFCP
session. These are provided for backward compatibility with
systems that do not support Counter64-based objects. At
1-Gbps rates, a Counter32-based object can wrap as often as
every 34 seconds. Counter32-based objects can be sufficient
for many situations. However, when possible, it is
recommended to use the high capacity statistics in
ifcpSessionStatsTable based on Counter64 objects."
::= {ifcpNportSessionInfo 3}
ifcpSessionLcStatsEntry OBJECT-TYPE
SYNTAX IfcpSessionLcStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Provides iFCP-specific statistics per session."
AUGMENTS {ifcpSessionAttributesEntry}
::= {ifcpSessionLcStatsTable 1}
IfcpSessionLcStatsEntry ::= SEQUENCE {
ifcpSessionLcTxOctets ZeroBasedCounter32,
ifcpSessionLcRxOctets ZeroBasedCounter32,
ifcpSessionLcTxFrames ZeroBasedCounter32,
ifcpSessionLcRxFrames ZeroBasedCounter32,
ifcpSessionLcStaleFrames ZeroBasedCounter32,
ifcpSessionLcHeaderCRCErrors ZeroBasedCounter32,
ifcpSessionLcFcPayloadCRCErrors ZeroBasedCounter32,
ifcpSessionLcOtherErrors ZeroBasedCounter32
}
Gibbons, et al. Standards Track [Page 20]
RFC 4369 iFCP MIB January 2006
ifcpSessionLcTxOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of octets transmitted by the iFCP gateway
for this session."
::= {ifcpSessionLcStatsEntry 1}
ifcpSessionLcRxOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of octets received by the iFCP gateway for
this session."
::= {ifcpSessionLcStatsEntry 2}
ifcpSessionLcTxFrames OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of iFCP frames transmitted by the gateway
for this session."
::= {ifcpSessionLcStatsEntry 3}
ifcpSessionLcRxFrames OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of iFCP frames received by the gateway
for this session."
::= {ifcpSessionLcStatsEntry 4}
ifcpSessionLcStaleFrames OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of received iFCP frames that were stale and
discarded by the gateway for this session."
::= {ifcpSessionLcStatsEntry 5}
ifcpSessionLcHeaderCRCErrors OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
Gibbons, et al. Standards Track [Page 21]
RFC 4369 iFCP MIB January 2006
STATUS current
DESCRIPTION
"The total number of CRC errors that occurred in the frame
header, detected by the gateway for this session. Usually,
a single Header CRC error is sufficient to terminate an
iFCP session."
::= {ifcpSessionLcStatsEntry 6}
ifcpSessionLcFcPayloadCRCErrors OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of CRC errors that occurred in the Fibre
Channel frame payload, detected by the gateway for this
session."
::= {ifcpSessionLcStatsEntry 7}
ifcpSessionLcOtherErrors OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of errors, other than errors explicitly
measured, detected by the gateway for this session."
::= {ifcpSessionLcStatsEntry 8}
--==========================================================
ifcpCompliances
OBJECT IDENTIFIER ::= {ifcpGatewayConformance 1}
ifcpGatewayCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"Implementation requirements for iFCP MIB compliance."
MODULE -- this module
MANDATORY-GROUPS {
ifcpLclGatewayGroup,
ifcpLclGatewaySessionGroup,
ifcpLclGatewaySessionStatsGroup,
ifcpLclGatewaySessionLcStatsGroup
}
OBJECT ifcpSessionLclPrtlAddrType
SYNTAX InetAddressType { ipv4(1), ipv6(2) }
DESCRIPTION
"Support is only required for global IPv4
Gibbons, et al. Standards Track [Page 22]
RFC 4369 iFCP MIB January 2006
and IPv6 address types."
OBJECT ifcpSessionRmtPrtlIfAddrType
SYNTAX InetAddressType { ipv4(1), ipv6(2) }
DESCRIPTION
"Support is only required for global IPv4
and IPv6 address types."
::= {ifcpCompliances 1}
ifcpGroups OBJECT IDENTIFIER ::= {ifcpGatewayConformance 2}
ifcpLclGatewayGroup OBJECT-GROUP
OBJECTS {
ifcpLclGtwyInstPhyIndex,
ifcpLclGtwyInstVersionMin,
ifcpLclGtwyInstVersionMax,
ifcpLclGtwyInstAddrTransMode,
ifcpLclGtwyInstFcBrdcstSupport,
ifcpLclGtwyInstDefaultIpTOV,
ifcpLclGtwyInstDefaultLTInterval,
ifcpLclGtwyInstDescr,
ifcpLclGtwyInstNumActiveSessions,
ifcpLclGtwyInstStorageType
}
STATUS current
DESCRIPTION
"iFCP local device info group. This group provides
information about each gateway."
::= {ifcpGroups 1}
ifcpLclGatewaySessionGroup OBJECT-GROUP
OBJECTS {
ifcpSessionLclPrtlIfIndex,
ifcpSessionLclPrtlAddrType,
ifcpSessionLclPrtlAddr,
ifcpSessionLclPrtlTcpPort,
ifcpSessionLclNpWwun,
ifcpSessionLclNpFcid,
ifcpSessionRmtNpWwun,
ifcpSessionRmtPrtlIfAddrType,
ifcpSessionRmtPrtlIfAddr,
ifcpSessionRmtPrtlTcpPort,
ifcpSessionRmtNpFcid,
ifcpSessionRmtNpFcidAlias,
ifcpSessionIpTOV,
ifcpSessionLclLTIntvl,
ifcpSessionRmtLTIntvl,
Gibbons, et al. Standards Track [Page 23]
RFC 4369 iFCP MIB January 2006
ifcpSessionBound,
ifcpSessionStorageType
}
STATUS current
DESCRIPTION
"iFCP Session group. This group provides information
about each iFCP session currently active between iFCP
gateways."
::= {ifcpGroups 4}
ifcpLclGatewaySessionStatsGroup OBJECT-GROUP
OBJECTS {
ifcpSessionState,
ifcpSessionDuration,
ifcpSessionTxOctets,
ifcpSessionRxOctets,
ifcpSessionTxFrames,
ifcpSessionRxFrames,
ifcpSessionStaleFrames,
ifcpSessionHeaderCRCErrors,
ifcpSessionFcPayloadCRCErrors,
ifcpSessionOtherErrors,
ifcpSessionDiscontinuityTime
}
STATUS current
DESCRIPTION
"iFCP Session Statistics group. This group provides
statistics with 64-bit counters for each iFCP session
currently active between iFCP gateways. This group
is only required for agents that can support Counter64-
based data types."
::= {ifcpGroups 5}
ifcpLclGatewaySessionLcStatsGroup OBJECT-GROUP
OBJECTS {
ifcpSessionLcTxOctets,
ifcpSessionLcRxOctets,
ifcpSessionLcTxFrames,
ifcpSessionLcRxFrames,
ifcpSessionLcStaleFrames,
ifcpSessionLcHeaderCRCErrors,
ifcpSessionLcFcPayloadCRCErrors,
ifcpSessionLcOtherErrors
}
STATUS current
DESCRIPTION
"iFCP Session Low Capacity Statistics group. This group
provides statistics with low-capacity 32-bit counters
Gibbons, et al. Standards Track [Page 24]
RFC 4369 iFCP MIB January 2006
for each iFCP session currently active between iFCP
gateways. This group is only required for agents that
do not support Counter64-based data types, or that need
to support SNMPv1 applications."
::= {ifcpGroups 6}
END
5. IANA Considerations
The IANA has made a unique MIB OID assignment under the transmission
branch for IFCP-MGMT-MIB.
6. Security Considerations
There are a number of management objects defined in this MIB module
with 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.
Changing the following object values, with a MAX-ACCESS of read-
write, may cause disruption in storage traffic:
ifcpLclGtwyInstAddrTransMode
ifcpLclGtwyInstFcBrdcstSupport
ifcpLclGtwyInstDefaultIpTOV
ifcpLclGtwyInstDefaultLTInterval
ifcpSessionIpTOV
Changing the following object value, with a MAX-ACCESS of read-write,
may cause a user to lose track of the iFCP gateway:
ifcpLclGtwyInstDescr
Some of the readable objects in this MIB module (i.e., objects with a
MAX-ACCESS other than not-accessible) may be considered sensitive or
vulnerable in some network environments. It is thus important to
control even GET and/or NOTIFY access to these objects and possibly
to even encrypt the values of these objects when sending them over
the network via SNMP.
Gibbons, et al. Standards Track [Page 25]
RFC 4369 iFCP MIB January 2006
The following object tables provide information about storage traffic
sessions, and can indicate to a user who is communicating and
exchanging storage data:
ifcpLclGtwyInstTable
ifcpSessionAttributesTable
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 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.
7. Normative References
[RFC2021] Waldbusser, S., "Remote Network Monitoring Management
Information Base Version 2 using SMIv2", RFC 2021, January
1997.
[RFC2578] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Structure of Management Information Version 2 (SMIv2)",
STD 58, RFC 2578, April 1999.
[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.
[RFC2856] Bierman, A., McCloghrie, K., and R. Presuhn, "Textual
Conventions for Additional High Capacity Data Types", RFC
2856, June 2000.
Gibbons, et al. Standards Track [Page 26]
RFC 4369 iFCP MIB January 2006
[RFC2863] McCloghrie, K. and F. Kastenholz, "The Interfaces Group
MIB", RFC 2863, June 2000.
[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.
[RFC4001] Daniele, M., Haberman, B., Routhier, S., and J.
Schoenwaelder, "Textual Conventions for Internet Network
Addresses", RFC 4001, February 2005.
[RFC4044] McCloghrie, K., "Fibre Channel Management MIB", RFC 4044,
May 2005.
[RFC4133] Bierman, A. and K. McCloghrie, "Entity MIB (Version 3)",
RFC 4133, August 2005.
[RFC4172] Monia, C., Mullendore, R., Travostino, F., Jeong, W., and
M. Edwards, "iFCP - A Protocol for Internet Fibre Channel
Storage Networking", RFC 4172, September 2005.
8. 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.
Gibbons, et al. Standards Track [Page 27]
RFC 4369 iFCP MIB January 2006
Authors' Addresses
Kevin Gibbons
McDATA Corporation
4555 Great America Pkwy
Santa Clara, CA 95054-1208 USA
Phone: (408)567-5765
EMail: kevin.gibbons@mcdata.com
Charles Monia
Consultant
7553 Morevern Circle
San Jose, CA 95135 USA
EMail: charles_monia@yahoo.com
Josh Tseng
Riverbed Technology
501 2nd Street, Suite 410
San Francisco, CA 94107 USA
Phone: (650)274-2109
EMail: joshtseng@yahoo.com
Franco Travostino
Nortel
600 Technology Park Drive
Billerica, MA 01821 USA
Phone: (978)288-7708
EMail: travos@nortel.com
Gibbons, et al. Standards Track [Page 28]
RFC 4369 iFCP MIB January 2006
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.
This document and the information contained herein are provided on an
"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
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Intellectual Property
The IETF takes no position regarding the validity or scope of any
Intellectual Property Rights or other rights that might be claimed to
pertain to the implementation or use of the technology described in
this document or the extent to which any license under such rights
might or might not be available; nor does it represent that it has
made any independent effort to identify any such rights. Information
on the procedures with respect to rights in RFC documents can be
found in BCP 78 and BCP 79.
Copies of IPR disclosures made to the IETF Secretariat and any
assurances of licenses to be made available, or the result of an
attempt made to obtain a general license or permission for the use of
such proprietary rights by implementers or users of this
specification can be obtained from the IETF on-line IPR repository at
http://www.ietf.org/ipr.
The IETF invites any interested party to bring to its attention any
copyrights, patents or patent applications, or other proprietary
rights that may cover technology that may be required to implement
this standard. Please address the information to the IETF at
ietf-ipr@ietf.org.
Acknowledgement
Funding for the RFC Editor function is provided by the IETF
Administrative Support Activity (IASA).
Gibbons, et al. Standards Track [Page 29]
ERRATA
