Audio/Video Working Group Alan Clark
Internet-Draft Telchemy
Expires: August 20, 2005 Amy Pendleton
Nortel Networks
Proposed RTP Control Protocol Extended Reports (RTCP XR)
VoIP Metrics Management Information Base
draft-ietf-avt-rtcp-xr-mib-01.txt
Status of this Memo
This document is an Internet-Draft and is subject to all provisions
of section 3 of RFC 3667. By submitting this Internet-Draft, each
author represents that any applicable patent or other IPR claims of
which he or she is aware have been or will be disclosed, and any of
which he or she become aware will be disclosed, in accordance with
RFC 3668.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that
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Internet-Drafts are draft documents valid for a maximum of six months
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This Internet-Draft will expire on August 20, 2005.
Copyright Notice
Copyright (C) The Internet Society (2004). All Rights Reserved.
This document is a product of the Audio-Visual Transport (AVT)
working group of the Internet Engineering Task Force. Comments are
solicited and should be addressed to the working group's mailing
list at avt@ietf.org and/or the authors.
Abstract
This memo defines a portion of the Management Information Base (MIB)
for use with network management protocols in the Internet community.
In particular, it defines objects for managing Real-Time Transport
Control Protocol Extended Reports (RTCP XR) VoIP Metrics (RFC3611).
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Table of Contents
1. The Network Management Framework ............................. 2
2. Overview ..................................................... 3
2.1 Components .................................................. 3
2.2 Applicability of the MIB to RTP System Implementations ...... 3
2.3 The Structure of the RTCP XR MIB ............................ 3
2.4 Relationship to the RAQMON Architecture...................... 4
3 Definitions ................................................... 5
4. Security Considerations ...................................... 41
5. IANA Considerations .......................................... 41
5. Acknowledgements ............................................. 41
6. Intellectual Property ........................................ 42
7. Normative References ......................................... 42
9. Informative References ....................................... 42
8. Authors' Addresses ........................................... 43
9. Full Copyright Statement ..................................... 43
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
An "RTP System" may be a host end-system that runs an application
program that sends or receives RTP data packets, or it may be an
intermediate-system that forwards RTP packets. RTP Control Protocol
(RTCP) packets are sent by senders and receivers to convey
information about RTP packet transmission and reception [RFC3550].
RTCP Extended Report (XR) [RFC3611] packets are sent by receivers
to convey additional information about certain types of RTP packet
reception.
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119.
2.1 Components
The RTCP XR MIB is structured around "Session", "Source",
"Destination" and "Receiver" conceptual abstractions.
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2.1.1 An RTP Session is an association of two or more participants
communicating with RTP. For each participant, the session is defined
by a particular pair of destination transport addresses (one network
address plus a port pair for RTP and RTCP). The destination
transport addresses may be common for all participants, as in the
case of IP multicast, or may be different for each, as in the case of
individual unicast addresses plus a common port pair," as defined in
section 3 of [RFC3550].
2.1.2 A "Sender" is identified within an RTP session by a 32-bit
numeric "Synchronization Source," or "SSRC", value and is "...the
source of a stream of RTP packets" as defined in section 3 of
[RFC3550]. The sender is also a source of RTCP Sender Report packets
as specified in section 6 of [RFC3550].
2.1.3 A "Receiver" of a "stream of RTP packets" can be a unicast or
multicast Receiver as described in 2.1.1, above. An RTP Receiver has
an SSRC value that is unique to the session. An RTP Receiver is a
source of RTCP Receiver Reports as specified in section 6 of
[RFC3550] and RTCP XR VoIP Metrics Reports as specified in section
4.7 of [RFC3611].
2.2 Applicability of the MIB to RTP System Implementations
The RTCP XR MIB may be used in RTP Host Systems (end systems), see
section 3 of [RFC3550], that are supporting Voice over IP (VoIP host
systems) or in intermediate systems.
2.2.1 VoIP host Systems are end-systems that may use the RTCP XR MIB
to collect RTP Voice over IP session data that the host is sending or
receiving; these data may be used by a network manager to detect and
diagnose faults that occur over the lifetime of a VoIP session as in
a "help-desk" scenario.
2.2.2 Monitors of RTP Voice over IP sessions may be third-party or
may be located in the RTP host. Monitors may use the RTCP XR MIB to
collect Voice over IP session statistical data; these data may be
used by a network manager for planning and other network-management
purposes. A Monitor may use the RTCP XR MIB to collect data to
permit a network manager to diagnose faults in VoIP sessions.
2.3 The Structure of the RTCP XR MIB
There are four tables in the RTCP XR MIB
The rtcpXrSessionIDtable contains identifying information about each
session and about the source and destination.
The rtcpXrBasicParametersTable contains basic packet loss, discard
and delay related parameters about a session.
The rtcpXrVoiceQualityMetricTable contains information about the call
quality of a session
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The rtcpXrHistoryTable contains aggregate information about a group
of sessions.
2.4 Relationship to the RAQMON Architecture
The Real-time Application QoS monitoring (RAQMON) Framework [xx]
defines an architecture that extends the Remote Monitoring (RMON)
family of applications for monitoring of application QoS in real
time, and an extensible data model with objects carried between
RAQMON data sources and RAQMON collectors. The RAQMON work is
more generic, and complementary in concept to RTCP-XR, covering a
wider range of applications running concurrently, while RTCP-XR
focuses on in-depth QoS monitoring of media traffic in VoIP.
The Real-time Application QoS Monitoring (RAQMON) MIB is defined
by [xx] and runs on RAQMON collectors. A performance monitoring
application may query (i) RAQMON collectors for RAQMON MIB
information about the QoS parameters of multiple concurrent
applications (ii) end-points and gateways for in-depth RTCP-XR
information about the media QoS of VoIP or (iii) both.
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3. Definitions
RTCPXR-MIB DEFINITIONS ::= BEGIN
IMPORTS
mib-2, MODULE-IDENTITY, NOTIFICATION-TYPE,
OBJECT-TYPE, Unsigned32, Integer32,
Gauge32, Counter32 FROM SNMPv2-SMI
OBJECT-GROUP, MODULE-COMPLIANCE,
NOTIFICATION-GROUP FROM SNMPv2-CONF
TEXTUAL-CONVENTION, RowPointer, TimeStamp
FROM SNMPv2-TC
SnmpAdminString FROM SNMP-FRAMEWORK-MIB
InetAddressType, InetAddress,
InetPortNumber FROM INET-ADDRESS-MIB
ItuPerceivedSeverity FROM ITU-ALARM-TC-MIB;
rtcpXrMIB MODULE-IDENTITY
LAST-UPDATED "200502200000Z"
ORGANIZATION
"IETF AVT Working Group"
CONTACT-INFO
"IETF AVT Working Group
Chairs: Colin Perkins, Magnus Westerlund
Working Group Email: avt@ietf.org
Editors: Alan Clark
Telchemy
Email: alan@telchemy.com
Amy Pendleton
Nortel Networks
Email: aspen@nortelnetworks.com"
DESCRIPTION
"RTCP Extended Reports MIB
Copyright (c) The Internet Society (2005)
This version of the MIB module is part of
RFC nnnn and is based on RFC3611."
REVISION "200502200000Z"
DESCRIPTION
"Initial version, published as RFC nnnn"
-- RFC Ed: replace nnnn (2 occurrences) with the actual RFC number and
-- remove this notice
::= { mib-2 255 }
-- IANA: need assignment of a mib-2 OID for this MIB
-- RFC Ed: replace mmm with IANA assigned number and remove this note
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-- RTCP Extended Reports - Voice over IP Metrics
--
-- Description
-- This MIB module provides basic voice quality monitoring
-- capabilities for Voice-over-packet systems. The MIB contains
-- 4 tables of information:-
-- a table of call records with session identifying information
-- a table of basic parameters for each session
-- a table of call quality metrics for each session
-- a table of aggregate statistics for groups of calls
-- TEXTUAL CONVENTIONS
--
LeveldB ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"Represents a signal level in decibels (dB)."
SYNTAX Integer32 (-120..120|127)
Rfactor ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"Call or transmission quality expressed as an
R factor in the range 0 to 120. A value of
127 shall be interpreted as NULL or unsupported."
REFERENCE
"ITU-T G.107"
SYNTAX Unsigned32 (0..120|127)
ScaledMOSscore ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"Call or transmission quality expressed as a
MOS score scaled by 10. MOS is typically represented
as a 1.0 to 5.0 score with a single decimal place and
hence in this representation as 10 to 50. A value of
127 shall be interpreted as NULL or unsupported."
REFERENCE
"ITU-T P.800"
SYNTAX Integer32 (10..50|127)
Percentage ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"Percentage expressed as a rounded integer."
SYNTAX Unsigned32 (0..100)
-- OBJECTS
--
rtcpXrMIBObjects OBJECT IDENTIFIER ::= { rtcpXrMIB 1 }
rtcpXrConformance OBJECT IDENTIFIER ::= { rtcpXrMIB 2 }
rtcpXrEvents OBJECT IDENTIFIER ::= { rtcpXrMIB 3 }
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--
-- Table of Session Identifying information
--
rtcpXrSessionIDTable OBJECT-TYPE
SYNTAX SEQUENCE OF RtcpXrSessionIDEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Table of information about RTP Sessions for which RTCP XR
parameters and metrics are available. "
::= { rtcpXrMIBObjects 1 }
rtcpXrSessionIDEntry OBJECT-TYPE
SYNTAX RtcpXrSessionIDEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the table of call records. A row in this table
is created for each RTP session endpoint participating."
INDEX { rtcpXrSessionIDIndex }
::= { rtcpXrSessionIDTable 1 }
RtcpXrSessionIDEntry ::= SEQUENCE {
rtcpXrSessionIDIndex Unsigned32,
rtcpXrSessionIDSessionIdentifier OCTET STRING,
rtcpXrSessionIDCallStartTime TimeStamp,
rtcpXrSessionIDCallStopTime TimeStamp,
rtcpXrSessionIDSourceIPtype InetAddressType,
rtcpXrSessionIDSourceIPaddress InetAddress,
rtcpXrSessionIDSourceRTPport InetPortNumber,
rtcpXrSessionIDSourceRTCPport InetPortNumber,
rtcpXrSessionIDDestIPtype InetAddressType,
rtcpXrSessionIDDestIPaddress InetAddress,
rtcpXrSessionIDDestRTPport InetPortNumber,
rtcpXrSessionIDDestRTCPport InetPortNumber,
rtcpXrSessionIDSrceIdenType INTEGER,
rtcpXrSessionIDSrceIdentifier OCTET STRING,
rtcpXrSessionIDDestIdenType INTEGER,
rtcpXrSessionIDDestIdentifier OCTET STRING,
rtcpXrSessionIDMeasurePt INTEGER,
rtcpXrSessionIDMeasurePtID OCTET STRING,
rtcpXrSessionIDReverseSession RowPointer,
rtcpXrSessionIDAltMeasurePt RowPointer
}
rtcpXrSessionIDIndex OBJECT-TYPE
SYNTAX Unsigned32 (0..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Index for this session within the Session ID table."
::= { rtcpXrSessionIDEntry 1 }
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rtcpXrSessionIDSessionIdentifier OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..128))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Unique identifier for this session. Where a billing record
correlation identifer is not available for a particular call,
another identifier such as SSRC can be used."
::= { rtcpXrSessionIDEntry 2 }
rtcpXrSessionIDCallStartTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Call start time for this call. If the start time is not
known then this represents the earliest known time associated
with the call."
::= { rtcpXrSessionIDEntry 3 }
rtcpXrSessionIDCallStopTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Call stop time for this call. If the call is still active
then this shall have the value 0. If the call is complete
but the time is unknown then this shall have the value of the
latest time associated with the call."
::= { rtcpXrSessionIDEntry 4 }
rtcpXrSessionIDSourceIPtype OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Source IP address type for this session."
::= { rtcpXrSessionIDEntry 5 }
rtcpXrSessionIDSourceIPaddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Source IP address for this session."
::= { rtcpXrSessionIDEntry 6 }
rtcpXrSessionIDSourceRTPport OBJECT-TYPE
SYNTAX InetPortNumber
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Source UDP port for RTP. A value of 0 indicates
an unknown port number."
::= { rtcpXrSessionIDEntry 7 }
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rtcpXrSessionIDSourceRTCPport OBJECT-TYPE
SYNTAX InetPortNumber
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Source UDP port for RTCP.A value of 0 indicates
an unknown port number."
::= { rtcpXrSessionIDEntry 8 }
rtcpXrSessionIDDestIPtype OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Destination IP address type for this session."
::= { rtcpXrSessionIDEntry 9 }
rtcpXrSessionIDDestIPaddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Destination IP address for this session."
::= { rtcpXrSessionIDEntry 10 }
rtcpXrSessionIDDestRTPport OBJECT-TYPE
SYNTAX InetPortNumber
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Destination UDP port for RTP. A value of 0 indicates
an unknown port number."
::= { rtcpXrSessionIDEntry 11 }
rtcpXrSessionIDDestRTCPport OBJECT-TYPE
SYNTAX InetPortNumber
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Destination UDP port for RTCP.A value of 0 indicates
an unknown port number."
::= { rtcpXrSessionIDEntry 12 }
rtcpXrSessionIDSrceIdenType OBJECT-TYPE
SYNTAX INTEGER {dialedNumber (1),
urlID (2),
other (3) }
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Defines the type of address in parameter
rtcpXrSessionIDSourceIdentifier"
::= { rtcpXrSessionIDEntry 13 }
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rtcpXrSessionIDSrceIdentifier OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..128))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Alternate identifier to the IP address. This can be E.164,
DN, or URL."
::= { rtcpXrSessionIDEntry 14 }
rtcpXrSessionIDDestIdenType OBJECT-TYPE
SYNTAX INTEGER {dialedNumber (1),
urlID (2),
other (3) }
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Defines the type of address in parameter
rtcpXrSessionIDDestIdentifier."
::= { rtcpXrSessionIDEntry 15 }
rtcpXrSessionIDDestIdentifier OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..128))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Alternate identifier to the IP address. This can be E.164,
DN, or URL."
::= { rtcpXrSessionIDEntry 16 }
rtcpXrSessionIDMeasurePt OBJECT-TYPE
SYNTAX INTEGER { localEndpoint (1),
remoteEndpoint (2),
midStream (3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Place that these metrics were measured - this endpoint,
remote endpoint (i.e. reported through XR), or midstream.
If this MIB is supported in a midstream device (e.g. probe)
then data from the IP endpoint reported to this device
using RFC3611 would be described as 'remoteEndpoint' and
data measured locally would be described as 'midStream'.
If this MIB is supported in an IP endpoint then the metrics
obtained from measurement of the incoming stream would be
'localEndpoint' and those reported via RFC3611 from the
remote end would be 'remoteEndpoint'.
This MIB could therefor report both remote and local
data if located in an IP endpoint or both remote and
midstream data if located in a probe, router or other
mid-network device."
::= { rtcpXrSessionIDEntry 17 }
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rtcpXrSessionIDMeasurePtID OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..128))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Information describing the identity of the endpoint that
measured the data in this row. If the data was measured
locally then this would be the identity of this system,
if measured remotely and reported via RFC3611 then this
would be the identity of the remote measurement point,
if known."
::= { rtcpXrSessionIDEntry 18 }
rtcpXrSessionIDReverseSession OBJECT-TYPE
SYNTAX RowPointer
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A pointer to the corresponding entry in this table for
the reverse direction of transmission. For example, if
this row contained locally measured metrics for the A->B
direction of transmission then the reverse session would
be the row containing locally measured metrics for the
B->A direction of transmission."
::= { rtcpXrSessionIDEntry 19 }
rtcpXrSessionIDAltMeasurePt OBJECT-TYPE
SYNTAX RowPointer
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A pointer to the corresponding entry in this table for
alternate measurement point data. For example, if this
MIB was located in a midstream devices and this row
contained metrics measured midstream then the alternate
measurement point would refer to the metrics reported
by the remote endpoint, and vice versa."
::= { rtcpXrSessionIDEntry 20 }
--
-- Table of basic call parameters
--
rtcpXrBaseParamTable OBJECT-TYPE
SYNTAX SEQUENCE OF RtcpXrBaseParamEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Table of basic parameters related to RTP sessions in
the Session table. "
::= { rtcpXrMIBObjects 2 }
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rtcpXrBaseParamEntry OBJECT-TYPE
SYNTAX RtcpXrBaseParamEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the table of basic parameters. A row in this table
is created for each RTP session endpoint participating."
INDEX { rtcpXrSessionIDIndex }
::= { rtcpXrBaseParamTable 1 }
RtcpXrBaseParamEntry ::= SEQUENCE {
rtcpXrBaseParamVocoderType OCTET STRING,
rtcpXrBaseParamVocoderRate Unsigned32,
rtcpXrBaseParamFrameDuration Unsigned32,
rtcpXrBaseParamSampleRate Unsigned32,
rtcpXrBaseParamDurationMs Counter32,
rtcpXrBaseParamNetworkLossRate Percentage,
rtcpXrBaseParamAvgDiscardRate Percentage,
rtcpXrBaseParamBurstLossDensity Percentage,
rtcpXrBaseParamBurstLenMs Gauge32,
rtcpXrBaseParamGapLossDensity Percentage,
rtcpXrBaseParamGapLenMs Gauge32,
rtcpXrBaseParamAvgOWDelay Gauge32,
rtcpXrBaseParamAvgEndSysDelay Gauge32,
rtcpXrBaseParamPlcType INTEGER,
rtcpXrBaseParamJBuffAdaptMode INTEGER,
rtcpXrBaseParamJBuffAdaptRate Unsigned32,
rtcpXrBaseParamJBuffAverageDelay Gauge32,
rtcpXrBaseParamJBuffMaximumDelay Gauge32,
rtcpXrBaseParamJBuffAbsMaxDelay Gauge32,
rtcpXrBaseParamJitterLevel Gauge32
}
rtcpXrBaseParamVocoderType OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..32))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Vocoder type used on this call. The format used shall be
ITU-T G.7xx, GSM FR, GSM EFR, GSM HR, AMR, AMR WB, iLBC
or similar. For example 'ITU G.729A'. "
::= { rtcpXrBaseParamEntry 1 }
rtcpXrBaseParamVocoderRate OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Vocoder rate in use at the time this data was captured
expressed in bits per second. For example G.711 would
have the rate 64000 and G.729 would have the rate 8000."
::= { rtcpXrBaseParamEntry 2 }
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rtcpXrBaseParamFrameDuration OBJECT-TYPE
SYNTAX Unsigned32 (0..16384)
UNITS "sample clock ticks"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Companion information to vocoder type. This represents the
duration of the time interval represented by a frame, which
is generally equivalent to the nominal spacing of frames.
This is expressed in sample clock ticks as defined under
rtxpXrSampleRate.
This parameter may be equated to the SDP ptime parameter
which is expressed in milliseconds (however which cannot
represent certain vocoder types, e.g. those with 2.5mS
frames)."
::= { rtcpXrBaseParamEntry 3 }
rtcpXrBaseParamSampleRate OBJECT-TYPE
SYNTAX Unsigned32 (0..16777215)
UNITS "samples per second"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Companion information to vocoder type. This represents the
rate at which media was sampled (e.g. 8000 for narrowband
voice, 16000 for wideband voice)."
::= { rtcpXrBaseParamEntry 4 }
rtcpXrBaseParamDurationMs OBJECT-TYPE
SYNTAX Counter32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Current duration of call in milliseconds if still active,
duration of call in milliseconds if complete."
::= { rtcpXrBaseParamEntry 5 }
rtcpXrBaseParamNetworkLossRate OBJECT-TYPE
SYNTAX Percentage
UNITS "percent"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average rate of network packet loss."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrBaseParamEntry 6 }
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rtcpXrBaseParamAvgDiscardRate OBJECT-TYPE
SYNTAX Percentage
UNITS "percent"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average rate of discards due to jitter."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrBaseParamEntry 7 }
rtcpXrBaseParamBurstLossDensity OBJECT-TYPE
SYNTAX Percentage
UNITS "percent"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Density of loss and discarded packets during burst periods."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrBaseParamEntry 8 }
rtcpXrBaseParamBurstLenMs OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average length of bursts in milliseconds."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrBaseParamEntry 9 }
rtcpXrBaseParamGapLossDensity OBJECT-TYPE
SYNTAX Percentage
UNITS "percent"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Density of loss and discarded packets during gap periods."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrBaseParamEntry 10 }
rtcpXrBaseParamGapLenMs OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average length of gaps in milliseconds."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrBaseParamEntry 11 }
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rtcpXrBaseParamAvgOWDelay OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average (symmetric) one way RTCP delay on call. A value of
zero may indicate that this value has not yet been determined."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrBaseParamEntry 12 }
rtcpXrBaseParamAvgEndSysDelay OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average end system delay on call. A value of zero may
indicate that this value has not yet been determined."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrBaseParamEntry 13 }
rtcpXrBaseParamPlcType OBJECT-TYPE
SYNTAX INTEGER { disabled(1),
enhanced(2),
standard(3),
unspecified (4)}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Defines type of packet loss concealment used on this call."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrBaseParamEntry 14 }
rtcpXrBaseParamJBuffAdaptMode OBJECT-TYPE
SYNTAX INTEGER { reserved (1),
nonAdaptive (2),
adaptive (3),
unknown (4) }
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Defines if jitter buffer is in fixed or adaptive mode."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrBaseParamEntry 15 }
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rtcpXrBaseParamJBuffAdaptRate OBJECT-TYPE
SYNTAX Unsigned32 (0..15)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Estimated adaptation rate of jitter buffer."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrBaseParamEntry 16 }
rtcpXrBaseParamJBuffAverageDelay OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average size of jitter buffer in mS."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrBaseParamEntry 17 }
rtcpXrBaseParamJBuffMaximumDelay OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum delay through jitter buffer at current size in mS."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrBaseParamEntry 18 }
rtcpXrBaseParamJBuffAbsMaxDelay OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Absolute maximum size jitter buffer can reach in mS."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrBaseParamEntry 19 }
rtcpXrBaseParamJitterLevel OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average jitter level measured according to RFC3550 and
represented in terms of milliseconds."
REFERENCE
"See RFC3550 Section 6.4."
::= { rtcpXrBaseParamEntry 20 }
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-- Table of Call Quality Metrics
--
rtcpXrCallQualityTable OBJECT-TYPE
SYNTAX SEQUENCE OF RtcpXrCallQualityEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Table of voice quality metrics. A row is created
in this table for each row in the Session table."
::= { rtcpXrMIBObjects 3 }
rtcpXrCallQualityEntry OBJECT-TYPE
SYNTAX RtcpXrCallQualityEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the table of voice quality metrics. A row in
this table is created for each row in the Session
table."
INDEX { rtcpXrSessionIDIndex }
::= { rtcpXrCallQualityTable 1 }
RtcpXrCallQualityEntry ::= SEQUENCE {
rtcpXrCallQualityNoiseLeveldBm LeveldB,
rtcpXrCallQualitySignalLeveldBm LeveldB,
rtcpXrCallQualityLocalRERLdB LeveldB,
rtcpXrCallQualityRemoteRERLdB LeveldB,
rtcpXrCallQualityRCQ Rfactor,
rtcpXrCallQualityRLQ Rfactor,
rtcpXrCallQualityExternalRCQ Rfactor,
rtcpXrCallQualityMOSCQ ScaledMOSscore,
rtcpXrCallQualityMOSLQ ScaledMOSscore,
rtcpXrCallQualityAlgorithm OCTET STRING
}
rtcpXrCallQualityNoiseLeveldBm OBJECT-TYPE
SYNTAX LeveldB
UNITS "dBm0"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Measured received silent period noise level in dBm.
A value of 127 indicates that this parameter is not
available.
In midpoint applications this parameter may not be
available. If this is a midstream device and call
quality metrics were calculated using the value of
this parameter reported from the endpoint in an
RTCP XR payload then the value used in this
calculation MAY be reported."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrCallQualityEntry 1 }
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rtcpXrCallQualitySignalLeveldBm OBJECT-TYPE
SYNTAX LeveldB
UNITS "dBm0"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Measured received signal level during talkspurts in dBm.
A value of 127 indicates that this parameter is not
available.
In midpoint applications this parameter may not be
available. If this is a midstream device and call
quality metrics were calculated using the value of
this parameter reported from the endpoint in an
RTCP XR payload then the value used in this
calculation MAY be reported."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrCallQualityEntry 2 }
rtcpXrCallQualityLocalRERLdB OBJECT-TYPE
SYNTAX LeveldB
UNITS "dBm"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Residual Echo Return Loss measured at this endpoint,
or at the terminating endpoint of this RTP session.
This relates to the echo level from the network beyond
the terminating endpoint and may be interpreted as either
line echo in the case of a gateway or acoustic echo in the
case of a handset.
Note that this echo affects conversational quality as
perceived by the user at the originating end of this
RTP session.
A value of 127 indicates that this parameter is not
available.
In midpoint applications this parameter may not be
available. If this is a midstream device and call
quality metrics were calculated using the value of
this parameter reported from the endpoint in an
RTCP XR payload then the value used in this
calculation MAY be reported."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrCallQualityEntry 3 }
rtcpXrCallQualityRemoteRERLdB OBJECT-TYPE
SYNTAX LeveldB
UNITS "dBm"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Residual Echo Return Loss measured at originating endpoint
of this RTP session (i.e. the remote endpoint if this MIB
is implemented in an endpoint).
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Note that this affects the conversational quality
metrics reported by the terminating (this) endpoint, hence
is useful in understanding what has affected the reported
call quality mertrics
A value of 127 indicates that this parameter is not
available.
In midpoint applications this parameter may not be
available. If this is a midstream device and call
quality metrics were calculated using the value of
this parameter reported from the endpoint in an
RTCP XR payload then the value used in this
calculation MAY be reported."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrCallQualityEntry 4 }
rtcpXrCallQualityRCQ OBJECT-TYPE
SYNTAX Rfactor
UNITS "R factor"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Conversational quality R factor for this call. This value
SHOULD be calculated using ITU G.107 (The E Model) or
extended versions thereof."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrCallQualityEntry 5 }
rtcpXrCallQualityRLQ OBJECT-TYPE
SYNTAX Rfactor
UNITS "R factor"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Listening quality R factor for this call. This value
SHOULD be calculated using ITU G.107 (The E Model) or
extended versions thereof."
::= { rtcpXrCallQualityEntry 6 }
rtcpXrCallQualityExternalRCQ OBJECT-TYPE
SYNTAX Rfactor
UNITS "R factor"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"External R factor for this call. This value
SHOULD be calculated using ITU G.107 (The E Model) or
extended versions thereof.
The External R factor relates to the quality of an
incoming voice from another network segment. For example
if a conference bridge terminates and re-creates voice
streams then an R factor would be calculated at the bridge
for the endpoint A to bridge segment and relayed to the
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subsequent bridge to endpoint B as an External R factor.
This allows endpoint B to estimate the end-to-end call
quality."
::= { rtcpXrCallQualityEntry 7 }
rtcpXrCallQualityMOSCQ OBJECT-TYPE
SYNTAX ScaledMOSscore
UNITS "MOS x 10"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Estimated conversational quality MOS for this call
expressed in MOS x 10 (e.g. 41 = MOS of 4.1). This value
MAY be calculated by converting the R-CQ value to a MOS."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrCallQualityEntry 8 }
rtcpXrCallQualityMOSLQ OBJECT-TYPE
SYNTAX ScaledMOSscore
UNITS "MOS x 10"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Estimated listening quality MOS for this call
expressed in MOS x 10 (e.g. 41 = MOS of 4.1). This value
MAY be calculated by converting the R-CQ value to a MOS."
REFERENCE
"See RFC3611 Section 4.7."
::= { rtcpXrCallQualityEntry 9 }
rtcpXrCallQualityAlgorithm OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..128))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Call quality algorithm used to determine R factors
and MOS scores. For example, 'ITU-T G.107' for the
E model. If any localized parameter scaling is used
(for example Japan's TTC MOS scaling) then this
MUST also be reported."
::= { rtcpXrCallQualityEntry 10 }
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--
-- History Table
--
--
rtcpXrHistoryTable OBJECT-TYPE
SYNTAX SEQUENCE OF RtcpXrHistoryEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Table of aggregate measurement data for groups
of RTP sessions. A group may be a flow or any
other logical association of streams."
::= { rtcpXrMIBObjects 4 }
rtcpXrHistoryEntry OBJECT-TYPE
SYNTAX RtcpXrHistoryEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in the table of call history records."
INDEX { rtcpXrHistoryIndex }
::= { rtcpXrHistoryTable 1 }
RtcpXrHistoryEntry ::= SEQUENCE {
rtcpXrHistoryIndex Unsigned32,
rtcpXrHistoryGroupName OCTET STRING,
rtcpXrHistoryStartTime TimeStamp,
rtcpXrHistoryStopTime TimeStamp,
rtcpXrHistoryNumOfSessions Counter32,
rtcpXrHistoryMinDurationMs Gauge32,
rtcpXrHistoryMaxDurationMs Gauge32,
rtcpXrHistoryAvgDurationMs Gauge32,
rtcpXrHistoryMaxNetworkLossRate Percentage,
rtcpXrHistoryAvgNetworkLossRate Percentage,
rtcpXrHistoryMaxDiscardRate Percentage,
rtcpXrHistoryAvgDiscardRate Percentage,
rtcpXrHistoryMaxBurstLossDensity Percentage,
rtcpXrHistoryAvgBurstLossDensity Percentage,
rtcpXrHistoryMinBurstLenMs Gauge32,
rtcpXrHistoryMaxBurstLenMs Gauge32,
rtcpXrHistoryAvgBurstLenMs Gauge32,
rtcpXrHistoryMaxGapLossDensity Percentage,
rtcpXrHistoryAvgGapLossDensity Percentage,
rtcpXrHistoryMinGapLenMs Gauge32,
rtcpXrHistoryMaxGapLenMs Gauge32,
rtcpXrHistoryAvgGapLenMs Gauge32,
rtcpXrHistoryMinOneWayDelay Gauge32,
rtcpXrHistoryMaxOneWayDelay Gauge32,
rtcpXrHistoryAvgOneWayDelay Gauge32,
rtcpXrHistoryMinEndSystemDelay Gauge32,
rtcpXrHistoryMaxEndSystemDelay Gauge32,
rtcpXrHistoryAvgEndSystemDelay Gauge32,
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rtcpXrHistoryMinJitterLevel Gauge32,
rtcpXrHistoryMaxJitterLevel Gauge32,
rtcpXrHistoryAvgJitterLevel Gauge32,
rtcpXrHistoryMinNoiseLeveldBm LeveldB,
rtcpXrHistoryMaxNoiseLeveldBm LeveldB,
rtcpXrHistoryAvgNoiseLeveldBm LeveldB,
rtcpXrHistoryNoiseLevelCount Counter32,
rtcpXrHistoryMinSignalLeveldBm LeveldB,
rtcpXrHistoryMaxSignalLeveldBm LeveldB,
rtcpXrHistoryAvgSignalLeveldBm LeveldB,
rtcpXrHistorySignalLevelCount Counter32,
rtcpXrHistoryMinLocalRERLdB LeveldB,
rtcpXrHistoryMaxLocalRERLdB LeveldB,
rtcpXrHistoryAvgLocalRERLdB LeveldB,
rtcpXrHistoryLocalRERLCount Counter32,
rtcpXrHistoryMinRemoteRERLdB LeveldB,
rtcpXrHistoryMaxRemoteRERLdB LeveldB,
rtcpXrHistoryAvgRemoteRERLdB LeveldB,
rtcpXrHistoryRemoteRERLCount Counter32,
rtcpXrHistoryMinRCQ Rfactor,
rtcpXrHistoryMaxRCQ Rfactor,
rtcpXrHistoryAvgRCQ Rfactor,
rtcpXrHistoryRCQCount Counter32,
rtcpXrHistoryMinRLQ Rfactor,
rtcpXrHistoryMaxRLQ Rfactor,
rtcpXrHistoryAvgRLQ Rfactor,
rtcpXrHistoryRLQCount Counter32,
rtcpXrHistoryMinMOSCQ ScaledMOSscore,
rtcpXrHistoryMaxMOSCQ ScaledMOSscore,
rtcpXrHistoryAvgMOSCQ ScaledMOSscore,
rtcpXrHistoryMOSCQCount Counter32,
rtcpXrHistoryMinMOSLQ ScaledMOSscore,
rtcpXrHistoryMaxMOSLQ ScaledMOSscore,
rtcpXrHistoryAvgMOSLQ ScaledMOSscore,
rtcpXrHistoryMOSLQCount Counter32,
rtcpXrHistoryCQAlgorithm OCTET STRING,
rtcpXrHistoryReset Integer32
}
rtcpXrHistoryIndex OBJECT-TYPE
SYNTAX Unsigned32 (0..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Index for this set of aggregate data."
::= { rtcpXrHistoryEntry 1 }
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rtcpXrHistoryGroupName OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..128))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Name of this set of aggregate data. Examples may include
a flow, an interface or some other logical grouping of
RTP sessions."
::= { rtcpXrHistoryEntry 2 }
rtcpXrHistoryStartTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Time at which this history was reset or started."
::= {rtcpXrHistoryEntry 3 }
rtcpXrHistoryStopTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Time at which this history was stopped."
::= {rtcpXrHistoryEntry 4 }
rtcpXrHistoryNumOfSessions OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of calls included in this history."
::= {rtcpXrHistoryEntry 5 }
rtcpXrHistoryMinDurationMs OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Minimum duration of calls."
::= {rtcpXrHistoryEntry 6 }
rtcpXrHistoryMaxDurationMs OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum duration of calls."
::= {rtcpXrHistoryEntry 7 }
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rtcpXrHistoryAvgDurationMs OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average duration of calls."
::= {rtcpXrHistoryEntry 8 }
rtcpXrHistoryMaxNetworkLossRate OBJECT-TYPE
SYNTAX Percentage
UNITS "percent"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum loss rate per call."
::= {rtcpXrHistoryEntry 9 }
rtcpXrHistoryAvgNetworkLossRate OBJECT-TYPE
SYNTAX Percentage
UNITS "percent"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average loss rate across calls."
::= {rtcpXrHistoryEntry 10 }
rtcpXrHistoryMaxDiscardRate OBJECT-TYPE
SYNTAX Percentage
UNITS "percent"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum discard rate per call."
::= {rtcpXrHistoryEntry 11 }
rtcpXrHistoryAvgDiscardRate OBJECT-TYPE
SYNTAX Percentage
UNITS "percent"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average discard rate across calls."
::= {rtcpXrHistoryEntry 12 }
rtcpXrHistoryMaxBurstLossDensity OBJECT-TYPE
SYNTAX Percentage
UNITS "percent"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum density of bursts if loss/discard."
::= {rtcpXrHistoryEntry 13 }
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rtcpXrHistoryAvgBurstLossDensity OBJECT-TYPE
SYNTAX Percentage
UNITS "percent"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average density of bursts of loss/discard."
::= {rtcpXrHistoryEntry 14 }
rtcpXrHistoryMinBurstLenMs OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Minimum length of bursts."
::= {rtcpXrHistoryEntry 15 }
rtcpXrHistoryMaxBurstLenMs OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum length of bursts."
::= {rtcpXrHistoryEntry 16 }
rtcpXrHistoryAvgBurstLenMs OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average length of bursts."
::= {rtcpXrHistoryEntry 17 }
rtcpXrHistoryMaxGapLossDensity OBJECT-TYPE
SYNTAX Percentage
UNITS "percent"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum loss/discard density in gaps."
::= {rtcpXrHistoryEntry 18 }
rtcpXrHistoryAvgGapLossDensity OBJECT-TYPE
SYNTAX Percentage
UNITS "percent"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average loss/discard density in gaps."
::= {rtcpXrHistoryEntry 19 }
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rtcpXrHistoryMinGapLenMs OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Minimum average per-call gap length."
::= {rtcpXrHistoryEntry 20 }
rtcpXrHistoryMaxGapLenMs OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum average per-call gap length."
::= {rtcpXrHistoryEntry 21 }
rtcpXrHistoryAvgGapLenMs OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average per-call gap length."
::= {rtcpXrHistoryEntry 22 }
rtcpXrHistoryMinOneWayDelay OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Minimum one way delay."
::= {rtcpXrHistoryEntry 23 }
rtcpXrHistoryMaxOneWayDelay OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum one way delay."
::= {rtcpXrHistoryEntry 24 }
rtcpXrHistoryAvgOneWayDelay OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average one way delay."
::= {rtcpXrHistoryEntry 25 }
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rtcpXrHistoryMinEndSystemDelay OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Minimum end system delay."
::= {rtcpXrHistoryEntry 26 }
rtcpXrHistoryMaxEndSystemDelay OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum end system delay."
::= {rtcpXrHistoryEntry 27 }
rtcpXrHistoryAvgEndSystemDelay OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average end system delay."
::= {rtcpXrHistoryEntry 28 }
rtcpXrHistoryMinJitterLevel OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Minimum jitter level."
::= {rtcpXrHistoryEntry 29 }
rtcpXrHistoryMaxJitterLevel OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum jitter level."
::= {rtcpXrHistoryEntry 30 }
rtcpXrHistoryAvgJitterLevel OBJECT-TYPE
SYNTAX Gauge32
UNITS "milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average jitter level."
::= {rtcpXrHistoryEntry 31 }
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rtcpXrHistoryMinNoiseLeveldBm OBJECT-TYPE
SYNTAX LeveldB
UNITS "dBm0"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Minimum noise level."
::= {rtcpXrHistoryEntry 32 }
rtcpXrHistoryMaxNoiseLeveldBm OBJECT-TYPE
SYNTAX LeveldB
UNITS "dBm0"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum noise level."
::= {rtcpXrHistoryEntry 33 }
rtcpXrHistoryAvgNoiseLeveldBm OBJECT-TYPE
SYNTAX LeveldB
UNITS "dBm0"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average noise level."
::= {rtcpXrHistoryEntry 34 }
rtcpXrHistoryNoiseLevelCount OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of sessions included in the Noise Level
history values (as Noise Level is an optional
parameter and may not be present on all calls."
::= {rtcpXrHistoryEntry 35 }
rtcpXrHistoryMinSignalLeveldBm OBJECT-TYPE
SYNTAX LeveldB
UNITS "dBm0"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Minimum signal level."
::= {rtcpXrHistoryEntry 36 }
rtcpXrHistoryMaxSignalLeveldBm OBJECT-TYPE
SYNTAX LeveldB
UNITS "dBm0"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum signal level."
::= {rtcpXrHistoryEntry 37 }
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rtcpXrHistoryAvgSignalLeveldBm OBJECT-TYPE
SYNTAX LeveldB
UNITS "dBm0"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average signal level."
::= {rtcpXrHistoryEntry 38 }
rtcpXrHistorySignalLevelCount OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of sessions included in the Signal Level
history values (as Signal Level is an optional
parameter and may not be present on all calls."
::= {rtcpXrHistoryEntry 39 }
rtcpXrHistoryMinLocalRERLdB OBJECT-TYPE
SYNTAX LeveldB
UNITS "dBm"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Minimum local Residual Echo Return Loss."
::= {rtcpXrHistoryEntry 40 }
rtcpXrHistoryMaxLocalRERLdB OBJECT-TYPE
SYNTAX LeveldB
UNITS "dBm"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum local Residual Echo Return Loss."
::= {rtcpXrHistoryEntry 41 }
rtcpXrHistoryAvgLocalRERLdB OBJECT-TYPE
SYNTAX LeveldB
UNITS "dBm"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average local Residual Echo Return Loss."
::= {rtcpXrHistoryEntry 42 }
rtcpXrHistoryLocalRERLCount OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of sessions included in the Local RERL
history values (as Local RERL is an optional
parameter and may not be present on all calls."
::= {rtcpXrHistoryEntry 43 }
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rtcpXrHistoryMinRemoteRERLdB OBJECT-TYPE
SYNTAX LeveldB
UNITS "dBm"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Minimum remote Residual Echo Return Loss."
::= {rtcpXrHistoryEntry 44 }
rtcpXrHistoryMaxRemoteRERLdB OBJECT-TYPE
SYNTAX LeveldB
UNITS "dBm"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Minimum remote Residual Echo Return Loss."
::= {rtcpXrHistoryEntry 45 }
rtcpXrHistoryAvgRemoteRERLdB OBJECT-TYPE
SYNTAX LeveldB
UNITS "dBm"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Minimum remote Residual Echo Return Loss."
::= {rtcpXrHistoryEntry 46 }
rtcpXrHistoryRemoteRERLCount OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of sessions included in the Remote RERL
history values (as Remote RERL is an optional
parameter and may not be present on all calls."
::= {rtcpXrHistoryEntry 47 }
rtcpXrHistoryMinRCQ OBJECT-TYPE
SYNTAX Rfactor
UNITS "R factor"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Minimum conversational R factor."
::= {rtcpXrHistoryEntry 48 }
rtcpXrHistoryMaxRCQ OBJECT-TYPE
SYNTAX Rfactor
UNITS "R factor"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum conversational R factor"
::= {rtcpXrHistoryEntry 49 }
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rtcpXrHistoryAvgRCQ OBJECT-TYPE
SYNTAX Rfactor
UNITS "R factor"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average conversational R factor"
::= {rtcpXrHistoryEntry 50 }
rtcpXrHistoryRCQCount OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of sessions included in the R CQ
history values (as R CQ is an optional
parameter and may not be present on all calls."
::= {rtcpXrHistoryEntry 51 }
rtcpXrHistoryMinRLQ OBJECT-TYPE
SYNTAX Rfactor
UNITS "R factor"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Minimum listening quality R factor."
::= {rtcpXrHistoryEntry 52 }
rtcpXrHistoryMaxRLQ OBJECT-TYPE
SYNTAX Rfactor
UNITS "R factor"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum listening quality R factor."
::= {rtcpXrHistoryEntry 53 }
rtcpXrHistoryAvgRLQ OBJECT-TYPE
SYNTAX Rfactor
UNITS "R factor"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average listening quality R factor."
::= {rtcpXrHistoryEntry 54 }
rtcpXrHistoryRLQCount OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of sessions included in the R LQ
history values (as R LQ is an optional
parameter and may not be present on all calls."
::= {rtcpXrHistoryEntry 55 }
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rtcpXrHistoryMinMOSCQ OBJECT-TYPE
SYNTAX ScaledMOSscore
UNITS "MOS x 10"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Minimum conversational quality MOS."
::= {rtcpXrHistoryEntry 56 }
rtcpXrHistoryMaxMOSCQ OBJECT-TYPE
SYNTAX ScaledMOSscore
UNITS "MOS x 10"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum conversational quality MOS."
::= {rtcpXrHistoryEntry 57 }
rtcpXrHistoryAvgMOSCQ OBJECT-TYPE
SYNTAX ScaledMOSscore
UNITS "MOS x 10"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average conversational quality MOS."
::= {rtcpXrHistoryEntry 58 }
rtcpXrHistoryMOSCQCount OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of sessions included in the MOS CQ
history values (as MOS CQ is an optional
parameter and may not be present on all calls."
::= {rtcpXrHistoryEntry 59 }
rtcpXrHistoryMinMOSLQ OBJECT-TYPE
SYNTAX ScaledMOSscore
UNITS "MOS x 10"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Minimum listening quality MOS."
::= {rtcpXrHistoryEntry 60 }
rtcpXrHistoryMaxMOSLQ OBJECT-TYPE
SYNTAX ScaledMOSscore
UNITS "MOS x 10"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Maximum listening quality MOS."
::= {rtcpXrHistoryEntry 61 }
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rtcpXrHistoryAvgMOSLQ OBJECT-TYPE
SYNTAX ScaledMOSscore
UNITS "MOS x 10"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Average listening quality MOS."
::= {rtcpXrHistoryEntry 62 }
rtcpXrHistoryMOSLQCount OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of sessions included in the MOS LQ
history values (as MOS LQ is an optional
parameter and may not be present on all calls."
::= {rtcpXrHistoryEntry 63 }
rtcpXrHistoryCQAlgorithm OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(0..32))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Call quality algorithm used - must be consistent
for all calls in this history."
::= {rtcpXrHistoryEntry 64 }
rtcpXrHistoryReset OBJECT-TYPE
SYNTAX INTEGER { running (1),
stop (2),
reset (3)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Status of this row in the history table.
Writing a value of 2 to this object MUST cause
history updates to be stopped for this row. Writing
a value of 3 to this object MUST cause the history
row to be reset.
Reads MUST return a value of 1 if the row is still
being updated or 2 if the row update has stopped."
::= {rtcpXrHistoryEntry 65 }
--
-- Notifications
--
rtcpXrVoipThresholdViolation NOTIFICATION-TYPE
OBJECTS { rtcpXrVoipAlertSeverity, rtcpXrVoipAlertType,
rtcpXrVoipAlertInfoType, rtcpXrVoipAlertPointer }
STATUS current
DESCRIPTION
"Notification that voice quality has changed
Sent immediately when the condition is detected."
::= { rtcpXrEvents 1}
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rtcpXrEventParam OBJECT IDENTIFIER ::= { rtcpXrEvents 2 }
rtcpXrVoipAlertType OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Text description of the type of alert. Where possible,
this parameter should be populated with the correct
rtcpXrVoipEntry or rtcpXrVoipHistory description."
::= { rtcpXrEventParam 1 }
rtcpXrVoipAlertInfoType OBJECT-TYPE
SYNTAX INTEGER { adminStringOnly (1),
sessionPointer (2),
historyPointer (3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates the type of information returned in the
rtcpXrVoipAlertInfo parameter."
::= { rtcpXrEventParam 2 }
rtcpXrVoipAlertPointer OBJECT-TYPE
SYNTAX RowPointer
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Pointer to the table of call session information to
identify the specific call that triggered the alert."
::= { rtcpXrEventParam 3 }
rtcpXrVoipAlertSeverity OBJECT-TYPE
SYNTAX ItuPerceivedSeverity
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The severity of the alert as defined in ITU-T X.733 and
RFC3877."
REFERENCE
"See Alarm MIB - RFC3877."
::= { rtcpXrEventParam 4 }
--
-- MODULE GROUPS
--
-- There are four types of RTCP XR VoIP Metrics System.
-- RTCP XR VOIP Metrics Systems MUST implement one of the four
-- identified types of system and SHOULD NOT implement the
-- rtcpXrMinimalCompliance system, which is included only
-- for reasons of compatibility with RFC3611's minimal
-- requirements.
--
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rtcpXrCompliances OBJECT IDENTIFIER ::= { rtcpXrConformance 1 }
rtcpXrGroups OBJECT IDENTIFIER ::= { rtcpXrConformance 2 }
rtcpXrFullMetricsCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"Describes the requirements for conformance to the
rtcpXr MIB for VoIP devices that support basic
reporting."
MODULE -- this module
MANDATORY-GROUPS { rtcpXrSessionIDGroup,
rtcpXrBaseParamGroup,
rtcpXrCallQualityGroup
}
::= { rtcpXrCompliances 1 }
rtcpXrMetricsAlertsCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"Describes the requirements for conformance to the
rtcpXr MIB for VoIP devices that support reporting
and alerts."
MODULE -- this module
MANDATORY-GROUPS { rtcpXrSessionIDGroup,
rtcpXrBaseParamGroup,
rtcpXrCallQualityGroup,
rtcpXrNotificationParmsGroup,
rtcpXrNotificationsGroup
}
::= { rtcpXrCompliances 2 }
rtcpXrMetricsHistoryCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"Describes the requirements for conformance to the
rtcpXr MIB for VoIP devices that support reporting,
call history and alerts."
MODULE -- this module
MANDATORY-GROUPS { rtcpXrSessionIDGroup,
rtcpXrBaseParamGroup,
rtcpXrCallQualityGroup,
rtcpXrMIBHistoryGroup,
rtcpXrNotificationParmsGroup,
rtcpXrNotificationsGroup }
::= { rtcpXrCompliances 3 }
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rtcpXrMinimalCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"Describes the minimal requirements for conformance to
the rtcpXr MIB - NOT RECOMMENDED."
MODULE -- this module
MANDATORY-GROUPS { rtcpXrSessionIDGroup,
rtcpXrBaseParamGroup
}
::= { rtcpXrCompliances 4 }
rtcpXrSessionIDGroup OBJECT-GROUP
OBJECTS {
rtcpXrSessionIDSessionIdentifier,
rtcpXrSessionIDCallStartTime,
rtcpXrSessionIDCallStopTime,
rtcpXrSessionIDSourceIPtype,
rtcpXrSessionIDSourceIPaddress,
rtcpXrSessionIDSourceRTPport,
rtcpXrSessionIDSourceRTCPport,
rtcpXrSessionIDDestIPtype,
rtcpXrSessionIDDestIPaddress,
rtcpXrSessionIDDestRTPport,
rtcpXrSessionIDDestRTCPport,
rtcpXrSessionIDDestIdentifier,
rtcpXrSessionIDDestIdenType,
rtcpXrSessionIDSrceIdentifier,
rtcpXrSessionIDSrceIdenType,
rtcpXrSessionIDMeasurePt,
rtcpXrSessionIDMeasurePtID,
rtcpXrSessionIDReverseSession,
rtcpXrSessionIDAltMeasurePt
}
STATUS current
DESCRIPTION
"Session ID objects used in rtcpXr VoIP Metrics MIB"
::= { rtcpXrGroups 1 }
rtcpXrBaseParamGroup OBJECT-GROUP
OBJECTS {
rtcpXrBaseParamVocoderType,
rtcpXrBaseParamVocoderRate,
rtcpXrBaseParamFrameDuration,
rtcpXrBaseParamSampleRate,
rtcpXrBaseParamDurationMs,
rtcpXrBaseParamNetworkLossRate,
rtcpXrBaseParamAvgDiscardRate,
rtcpXrBaseParamBurstLossDensity,
rtcpXrBaseParamBurstLenMs,
rtcpXrBaseParamGapLossDensity,
rtcpXrBaseParamGapLenMs,
rtcpXrBaseParamAvgOWDelay,
rtcpXrBaseParamAvgEndSysDelay,
rtcpXrBaseParamPlcType,
rtcpXrBaseParamJBuffAdaptMode,
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rtcpXrBaseParamJBuffAdaptRate,
rtcpXrBaseParamJBuffAverageDelay,
rtcpXrBaseParamJBuffMaximumDelay,
rtcpXrBaseParamJBuffAbsMaxDelay,
rtcpXrBaseParamJitterLevel
}
STATUS current
DESCRIPTION
"Objects used in rtcpXr VoIP Metrics MIB"
::= { rtcpXrGroups 2 }
rtcpXrCallQualityGroup OBJECT-GROUP
OBJECTS {
rtcpXrCallQualityNoiseLeveldBm,
rtcpXrCallQualitySignalLeveldBm,
rtcpXrCallQualityLocalRERLdB,
rtcpXrCallQualityRemoteRERLdB,
rtcpXrCallQualityRCQ,
rtcpXrCallQualityRLQ,
rtcpXrCallQualityExternalRCQ,
rtcpXrCallQualityMOSCQ,
rtcpXrCallQualityMOSLQ,
rtcpXrCallQualityAlgorithm
}
STATUS current
DESCRIPTION
"Call quality objects used in rtcpXr VoIP Metrics MIB"
::= { rtcpXrGroups 3 }
rtcpXrMIBHistoryGroup OBJECT-GROUP
OBJECTS {
rtcpXrHistoryGroupName,
rtcpXrHistoryStartTime,
rtcpXrHistoryStopTime,
rtcpXrHistoryNumOfSessions,
rtcpXrHistoryMinDurationMs,
rtcpXrHistoryMaxDurationMs,
rtcpXrHistoryAvgDurationMs,
rtcpXrHistoryMaxNetworkLossRate,
rtcpXrHistoryAvgNetworkLossRate,
rtcpXrHistoryMaxDiscardRate,
rtcpXrHistoryAvgDiscardRate,
rtcpXrHistoryMaxBurstLossDensity,
rtcpXrHistoryAvgBurstLossDensity,
rtcpXrHistoryMinBurstLenMs,
rtcpXrHistoryMaxBurstLenMs,
rtcpXrHistoryAvgBurstLenMs,
rtcpXrHistoryMaxGapLossDensity,
rtcpXrHistoryAvgGapLossDensity,
rtcpXrHistoryMinGapLenMs,
rtcpXrHistoryMaxGapLenMs,
rtcpXrHistoryAvgGapLenMs,
rtcpXrHistoryMinOneWayDelay,
rtcpXrHistoryMaxOneWayDelay,
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rtcpXrHistoryAvgOneWayDelay,
rtcpXrHistoryMinEndSystemDelay,
rtcpXrHistoryMaxEndSystemDelay,
rtcpXrHistoryAvgEndSystemDelay,
rtcpXrHistoryAvgJitterLevel,
rtcpXrHistoryMinJitterLevel,
rtcpXrHistoryMaxJitterLevel,
rtcpXrHistoryMinNoiseLeveldBm,
rtcpXrHistoryMaxNoiseLeveldBm,
rtcpXrHistoryAvgNoiseLeveldBm,
rtcpXrHistoryNoiseLevelCount,
rtcpXrHistoryMinSignalLeveldBm,
rtcpXrHistoryMaxSignalLeveldBm,
rtcpXrHistoryAvgSignalLeveldBm,
rtcpXrHistorySignalLevelCount,
rtcpXrHistoryMinLocalRERLdB,
rtcpXrHistoryMaxLocalRERLdB,
rtcpXrHistoryAvgLocalRERLdB,
rtcpXrHistoryLocalRERLCount,
rtcpXrHistoryMinRemoteRERLdB,
rtcpXrHistoryMaxRemoteRERLdB,
rtcpXrHistoryAvgRemoteRERLdB,
rtcpXrHistoryRemoteRERLCount,
rtcpXrHistoryMinRCQ,
rtcpXrHistoryMaxRCQ,
rtcpXrHistoryAvgRCQ,
rtcpXrHistoryRCQCount,
rtcpXrHistoryMinRLQ,
rtcpXrHistoryMaxRLQ,
rtcpXrHistoryAvgRLQ,
rtcpXrHistoryRLQCount,
rtcpXrHistoryMinMOSCQ,
rtcpXrHistoryMaxMOSCQ,
rtcpXrHistoryAvgMOSCQ,
rtcpXrHistoryMOSCQCount,
rtcpXrHistoryMinMOSLQ,
rtcpXrHistoryMaxMOSLQ,
rtcpXrHistoryAvgMOSLQ,
rtcpXrHistoryMOSLQCount,
rtcpXrHistoryCQAlgorithm,
rtcpXrHistoryReset
}
STATUS current
DESCRIPTION
"Objects used in rtcpXr VoIP History MIB"
::= { rtcpXrGroups 4 }
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rtcpXrNotificationParmsGroup OBJECT-GROUP
OBJECTS {
rtcpXrVoipAlertSeverity,
rtcpXrVoipAlertType,
rtcpXrVoipAlertInfoType,
rtcpXrVoipAlertPointer
}
STATUS current
DESCRIPTION
"Notification parameters emitted by a rtcpXr endpoint."
::= { rtcpXrGroups 5 }
rtcpXrNotificationsGroup NOTIFICATION-GROUP
NOTIFICATIONS {
rtcpXrVoipThresholdViolation
}
STATUS current
DESCRIPTION
"Notifications emitted by a rtcpXr endpoint."
::= { rtcpXrGroups 6 }
END
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4. Security Considerations
Certain MIB objects contain endpoint identifying information:
rtcpXrSessionIDSourceIPaddress
rtcpXrSessionIDDestIPaddress
rtcpXrSessionIDSrceIdentifier
rtcpXrSessionIDDestIdentifier
Unauthorized exposure of these objects may lead to disclosure of the
addresses of the participants in applications, or information about
the traffic patents of the applications, which may be considered
sensitive in certain environments.
Access to rtcpXrHistoryReset can result in resetting the table of
aggregate call quality information, which results in the loss of
useful management data.
It is thus important to control even GET and/or NOTIFY access to
these objects and possibly to even encrypt their values when sending
them over the network via SNMP.
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.
5. IANA Considerations
An OID within the mib-2 tree is requested, following which this note
may be deleted.
6. Acknowledgements
The authors would like to acknowledge the input and advice provided
by Dan Romascanu, Rajesh Kumar. Kim Curran and Shane Holthaus.
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7. 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.
8. Normative References
[RFC3550] Shulzrinne, H., Casner, S., Frederick, R. and V.
Jacobson, "RTP: A Transport Protocol for real-time
applications," RFC 3550, July 2003.
[RFC3611] Friedman, T., Caceres, R., Clark, A., "RTP Control
Protocol Reporting Extensions (RTCP XR)," RFC 3611,
[October/November] 2003
[RFC2578] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
Rose, M. and S. Waldbusser, "Structure of Management
Information Version 2 (SMIv2)", STD 58, RFC 2578,
December 1999.
[RFC2579] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
Rose, M. and S. Waldbusser, "Textual Conventions for
SMIv2", STD 58, RFC 2579, December 1999.
[RFC2580] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
Rose, M. and S. Waldbusser, "Conformance Statements for
SMIv2", STD 58, RFC 2580, December 1999.
9. Informative References
[RFC3410] Case, J., Mundy, R., Partain, D. and Stewart, B.,
"Introduction and Applicability Statements for Internet
Standard Management Framework", RFC 3410, December 2002
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8. Authors' Addresses
Alan Clark
Telchemy Incorporated
3360 Martins Farm Road, Ste 200
Suwanee, Georgia 30024
U.S.A.
Email: alan@telchemy.com
Amy Pendleton
Nortel Networks
2380 Performance Drive
Richardson, Texas 75081
U.S.A.
Email: aspen@nortelnetworks.com
9. Full Copyright Statement
Copyright (C) The Internet Society (2004). 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 translations of it may be copied and furnished to
others, and derivative works that comment on or otherwise explain it
or assist in its implementation may be prepared, copied, published
and distributed, in whole or in part, without restriction of any
kind, provided that the above copyright notice and this paragraph are
included on all such copies and derivative works. However, this
document itself may not be modified in any way, such as by removing
the copyright notice or references to the Internet Society or other
Internet organizations, except as needed for the purpose of
developing Internet standards in which case the procedures for
copyrights defined in the Internet Standards process must be
followed, or as required to translate it into languages other than
English.
The limited permissions granted above are perpetual and will not be
revoked by the Internet Society or its successors or assigns.
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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.
Clark Expires August 2005 [Page 44]
