RFC3317 - Differentiated Services Quality of Service Policy(4)

时间:2005-02-17 来源: 作者: 点击:
PIB Objects that describe the datapath element linkage capabilities." ::= { dsPolicyPibGroups 9 } dsPibDataPathGroup OBJECT-GROUP OBJECTS { dsDataPathPrid, dsDataPathCapSetName, dsDataPathRoles, dsDa
  
PIB Objects that describe the datapath element linkage
capabilities."
::= { dsPolicyPibGroups 9 }

dsPibDataPathGroup OBJECT-GROUP
OBJECTS {

dsDataPathPrid, dsDataPathCapSetName,
dsDataPathRoles, dsDataPathIfDirection,
dsDataPathStart
}
STATUS current
DESCRIPTION
"The Data Path Group defines the PIB Objects that
describe a data path."
::= { dsPolicyPibGroups 10 }

dsPibClfrGroup OBJECT-GROUP
OBJECTS {
dsClfrPrid, dsClfrId
}
STATUS current
DESCRIPTION
"The Classifier Group defines the PIB Objects that
describe a generic classifier."
::= { dsPolicyPibGroups 11 }

dsPibClfrElementGroup OBJECT-GROUP
OBJECTS {
dsClfrElementPrid, dsClfrElementClfrId,
dsClfrElementPrecedence, dsClfrElementNext,
dsClfrElementSpecific
}
STATUS current
DESCRIPTION
"The Classifier Group defines the PIB Objects that
describe a generic classifier."
::= { dsPolicyPibGroups 12 }

dsPibMeterGroup OBJECT-GROUP
OBJECTS {
dsMeterPrid, dsMeterSucceedNext,
dsMeterFailNext, dsMeterSpecific
}
STATUS current
DESCRIPTION
"The Meter Group defines the objects used in describ-
ing a generic meter element."
::= { dsPolicyPibGroups 13 }

dsPibTBParamGroup OBJECT-GROUP
OBJECTS {
dsTBParamPrid, dsTBParamType, dsTBParamRate,
dsTBParamBurstSize, dsTBParamInterval
}

STATUS current
DESCRIPTION
"The Token-Bucket Parameter Group defines the objects
used in describing a single-rate token bucket meter
element."
::= { dsPolicyPibGroups 14 }

dsPibActionGroup OBJECT-GROUP
OBJECTS {
dsActionPrid, dsActionNext, dsActionSpecific
}
STATUS current
DESCRIPTION
"The Action Group defines the objects used in
describing a generic action element."
::= { dsPolicyPibGroups 15 }

dsPibDscpMarkActGroup OBJECT-GROUP
OBJECTS {
dsDscpMarkActPrid, dsDscpMarkActDscp
}
STATUS current
DESCRIPTION
"The DSCP Mark Action Group defines the objects used
in describing a DSCP Marking Action element."
::= { dsPolicyPibGroups 16 }

dsPibAlgDropGroup OBJECT-GROUP
OBJECTS {
dsAlgDropPrid, dsAlgDropType, dsAlgDropNext,
dsAlgDropQMeasure, dsAlgDropQThreshold,
dsAlgDropSpecific
}
STATUS current
DESCRIPTION
"The Algorithmic Drop Group contains the objects that
describe algorithmic dropper operation and configura-
tion."
::= { dsPolicyPibGroups 17 }

dsPibMQAlgDropGroup OBJECT-GROUP
OBJECTS {
dsMQAlgDropExceedNext
}
STATUS current
DESCRIPTION
"The Multiple Queue Measured Algorithmic Drop Group
contains the objects that describe multiple queue

measured algorithmic dropper operation and configuration."
::= { dsPolicyPibGroups 18 }

dsPibRandomDropGroup OBJECT-GROUP
OBJECTS {
dsRandomDropPrid,
dsRandomDropMinThreshBytes,
dsRandomDropMinThreshPkts,
dsRandomDropMaxThreshBytes,
dsRandomDropMaxThreshPkts,
dsRandomDropProbMax,
dsRandomDropWeight,
dsRandomDropSamplingRate
}
STATUS current
DESCRIPTION
"The Random Drop Group augments the Algorithmic Drop Group
for random dropper operation and configuration."
::= { dsPolicyPibGroups 19 }

dsPibQGroup OBJECT-GROUP
OBJECTS {
dsQPrid, dsQNext, dsQMinRate, dsQMaxRate
}
STATUS current
DESCRIPTION
"The Queue Group contains the objects that describe
an interface type's queues."
::= { dsPolicyPibGroups 20 }

dsPibSchedulerGroup OBJECT-GROUP
OBJECTS {
dsSchedulerPrid, dsSchedulerNext, dsSchedulerMethod,
dsSchedulerMinRate, dsSchedulerMaxRate
}
STATUS current
DESCRIPTION
"The Scheduler Group contains the objects that
describe packet schedulers on interface types."
::= { dsPolicyPibGroups 21 }

dsPibMinRateGroup OBJECT-GROUP
OBJECTS {
dsMinRatePrid, dsMinRatePriority,
dsMinRateAbsolute, dsMinRateRelative
}
STATUS current
DESCRIPTION

"The Minimum Rate Group contains the objects
that describe packet schedulers' parameters on interface
types."
::= { dsPolicyPibGroups 22 }

dsPibMaxRateGroup OBJECT-GROUP
OBJECTS {
dsMaxRatePrid, dsMaxRateId, dsMaxRateLevel,
dsMaxRateAbsolute, dsMaxRateRelative,
dsMaxRateThreshold
}
STATUS current
DESCRIPTION
"The Maximum Rate Group contains the objects
that describe packet schedulers' parameters on interface
types."
::= { dsPolicyPibGroups 23 }

END

9. Acknowledgments

Early versions of this specification were also co-authored by Michael
Fine, John Seligson, Carol Bell, Andrew Smith, and Francis
Reichmeyer.

This PIB builds on all the work that has gone into the Informal
Management Model for DiffServ Routers and Management Information Base
for the Differentiated Services Architecture.

It has been developed with the active involvement of many people, but
most notably Diana Rawlins, Martin Bokaemper, Walter Weiss, and Bert
Wijnen.

10. Security Considerations

The information contained in a PIB when transported by the COPS
protocol [COPS-PR] may be sensitive, and its function of provisioning
a PEP requires that only authorized communication take place.

In this PIB, there are no PRCs which are sensitive in their own
right, such as passwords or monetary amounts. But there are a number
of PRCs in this PIB that may contain information that may be
sensitive from a business perspective, in that they may represent a
customer's service contract or the filters that the service provider
chooses to apply to a customer's traffic. These PRCs have a PIB-
ACCESS clause of install:

dsDataPathTable, dsClfrTable, dsClfrElementTable, dsMeterTable,
dsTBParamTable, dsActionTable, dsDscpMarkActTable, dsAlgDropTable,
dsMQAlgDropTable, dsRandomDropTable, dsQTable, dsSchedulerTable,
dsMinRateTable, dsMaxRateTable

Malicious altering of the above PRCs may affect the DiffServ behavior
of the device being provisioned.

Malicious access of the above PRCs exposes policy information
concerning how the device is provisioned.

This PIB also contain PRCs with PIB-ACCESS clause of notify:

dsBaseIfCapsTAble, dsIfClassificationCapsTable,
dsIfMeteringCapsTable, dsIfAlgDropCapsTable, dsIfQueueCapsTable,
dsIfSchedulerCapsTable, dsIfMaxRateCapsTable, dsIfElmDepthCapsTable,
dsIfElmLinkCapsTable

Malicious access of the above PRCs exposes information concerning the
device being provisioned.

The use of IPSEC between PDP and PEP, as described in [COPS],
provides the necessary protection.

11. Intellectual Property Considerations

The IETF has been notified of intellectual property rights claimed in
regard to some or all of the specification contained in this
document. For more information consult the online list of claimed
rights.

12. IANA Considerations

This document describes the dsPolicyPib Policy Information Base (PIB)
modules for standardization under the "pib" branch registered with
IANA. The IANA has assigned a PIB number (4) under the "pib" branch.

[SPPI] PIB SUBJECT-CATEGORIES are mapped to COPS Client Types. IANA
Considerations for SUBJECT-CATEGORIES follow the same requirements as
specified in [COPS] IANA Considerations for COPS Client Types. The
DiffServ QoS PIB defines a new COPS Client Type in the Standards
space. The IANA has assigned a COPS client type diffServ (2) as
described in [COPS] IANA Considerations. IANA has updated the
registry (http://www.iana.org/assignments/cops-parameters) for COPS
Client Types as a result.

13. Normative References

[COPS] Boyle, J., Cohen, R., Durham, D., Herzog, S., Rajan,
R. and A. Sastry, "The COPS (Common Open Policy
Service) Protocol", RFC2748, January 2000.

[COPS-PR] Chan, K., Durham, D., Gai, S., Herzog, S.,
McCloghrie, K., Reichmeyer, F., Seligson, J.,
Smith, A. and R. Yavatkar, "COPS Usage for
Policy Provisioning", RFC3084, March 2001.

[SPPI] McCloghrie, K., Fine, M., Seligson, J., Chan, K.,
Hahn, S., Sahita, R., Smith, A. and F. Reichmeyer,
"Structure of Policy Provisioning Information",
RFC3159, August 2001.

[DSARCH] Carlson, M., Weiss, W., Blake, S., Wang, Z., Black,
D. and E. Davies, "An Architecture for Differentiated
Services", RFC2475, December 1998.

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

[FR-PIB] Fine, M., McCloghrie, K., Seligson, J., Chan, K.,
Hahn, S., Sahita, R., Smith, A. and F. Reichmeyer,
"Framework Policy Information Base", RFC3318,
March 2003.

[RAP-FRAMEWORK] Yavatkar, R. and D. Pendarakis, "A Framework for
Policy-based Admission Control", RFC2753, January
2000.

[SNMP-SMI] McCloghrie, K., Perkins, D., Schoenwaelder, J.,
Case, J., Rose, M. and S. Waldbusser, "Structure
of Management Information Version 2 (SMIv2)",
STD 58, RFC2578, April 1999.

[MODEL] Bernet, Y., Blake, S., Grossman, D. and A. Smith
"An Informal Management Model for Diffserv Routers",
RFC3290, May 2002.

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

[DS-MIB] Baker, F., Chan, K. and A. Smith, "Management
Information Base for the Differentiated Services
Architecture", RFC3289, May 2002.

[ACTQMGMT] Firoiu, V. and M. Borden, "A Study of Active Queue
Management for Congestion Control", March 2000, In
IEEE Infocom 2000, http://www.ieee-infocom.org/
2000/papers/405.pdf

[AQMROUTER] Misra, V., Gong, W. and D. Towsley, "Fluid-based
analysis of a network of AQM routers supporting TCP
flows with an application to RED", In SIGCOMM 2000,
http://www.acm.org/sigcomm/sigcomm2000/conf/paper/
sigcomm2000-4-3.ps.gz

[AF-PHB] Heinanen, J., Baker, F., Weiss, W. and J. Wroclawski,
"Assured Forwarding PHB Group", RFC2597, June 1999.

[EF-PHB] Jacobson, V., Nichols, K. and K. Poduri, "An
Expedited Forwarding PHB", RFC2598, June 1999.

[INTSERVMIB] Baker, F., Krawczyk, J. and A. Sastry, "Integrated
Services Management Information Base using SMIv2",
RFC2213, September 1997.

[QUEUEMGMT] Braden, B., Clark, D., Crowcroft, J., Davie, B.,
Deering, S., Estrin, D., Floyd, S., Jacobson, V.,
Minshall, G., Partridge, C., Peterson, L.,
Ramakrishnan, K., Shenker, S., Wroclawski, J.
and L. Zhang, "Recommendations on Queue Management
and Congestion Avoidance in the Internet", RFC2309,
April 1998.

[SRTCM] Heinanen, J. and R. Guerin, "A Single Rate Three
Color Marker", RFC2697, September 1999.

[TRTCM] Heinanen, J. and R. Guerin, "A Two Rate Three Color
Marker", RFC2698, September 1999.

[TSWTCM] Fang, W., Seddigh, N. and B. Nandy, "A Time Sliding
Window Three Colour Marker", RFC2859, June 2000.

[RFC2026] Bradner, S., "The Internet Standards Process --
Revision 3", BCP 9, RFC2026, October 1996.

[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC2119, March 1997.

[RFC2579] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case,
J., Rose, M. and S. Waldbusser, "Textual Conventions
for SMIv2", STD 58, RFC2579, April 1999.

[SHAPER] Bonaventure, O. and S. De Cnodder, "A Rate Adaptive
Shaper for Differentiated Services", RFC2963,
October 2000.

[POLTERM] Westerinen, A., Schnizlein, J., Strassner, J.,
Scherling, M., Quinn, B., Herzog, S., Huynh, A.,
Carlson, M., Perry, J. and S. Waldbusser,
"Terminology for Policy-Based Management",
RFC3198, November 2001.

14. Authors' Addresses

Kwok Ho Chan
Nortel Networks, Inc.
600 Technology Park Drive
Billerica, MA 01821 USA

Phone: +1 978 288 8175
EMail: khchan@nortelnetworks.com

Ravi Sahita
Intel Labs.
2111 NE 25th Avenue
Hillsboro, OR 97124 USA

Phone: +1 503 712 1554
EMail: ravi.sahita@intel.com

Scott Hahn
Intel
2111 NE 25th Avenue
Hillsboro, OR 97124 USA

Phone: +1 503 264 8231
EMail: scott.hahn@intel.com

Keith McCloghrie
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706 USA

Phone: +1 408 526 5260
EMail: kzm@cisco.com

15. Full Copyright Statement

Copyright (C) The Internet Society (2003). All Rights Reserved.

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.

This document and the information contained herein is provided on an
"AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
TASK FORCE DISCLAIMS 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.

Acknowledgement

Funding for the RFCEditor function is currently provided by the
Internet Society.

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