port."
::= { frnetservGroups 6 }
frnetservLportGroup2 OBJECT-GROUP
OBJECTS { frLportNumPlan,
frLportContact,
frLportLocation,
frLportType,
frLportAddrDLCILen,
frLportVCSigProtocol,
frLportFragControl,
frLportFragSize }
STATUS current
DESCRIPTION
"A collection of objects providing information
applicable to a Frame Relay Logical Port.
This new version of the Logical Port Group
eliminates the frLportVCSigPointer and adds
support for fragmentation."
::= { frnetservGroups 7 }
frnetservPVCEndptGroup2 OBJECT-GROUP
OBJECTS { frPVCEndptInDiscardsDESet,
frPVCEndptInFramesFECNSet,
frPVCEndptOutFramesFECNSet,
frPVCEndptInFramesBECNSet,
frPVCEndptOutFramesBECNSet,
frPVCEndptInCongDiscards,
frPVCEndptInDECongDiscards,
frPVCEndptOutCongDiscards,
frPVCEndptOutDECongDiscards,
frPVCEndptOutDEFrames,
frPVCEndptAtmIwfConnIndex }
STATUS current
DESCRIPTION
"Additions to the PVC end-point group. These
additions provide new frame counters to track
frame loss. In addition, the new FR/ATM IWF MIB
cross-connect index is included."
::= { frnetservGroups 8 }
frnetservPVCConnectNamesGroup OBJECT-GROUP
OBJECTS { frPVCConnectUserName,
frPVCConnectProviderName }
STATUS current
DESCRIPTION
"Additions to the PVC Connect Group."
::= { frnetservGroups 9 }
frnetservLportAdminGroup OBJECT-GROUP
OBJECTS { frLportDLCIIndexValue,
frLportTypeAdmin,
frLportVCSigProtocolAdmin }
STATUS current
DESCRIPTION
"Administrative (R/W) objects for creating a
switch logical port."
::= { frnetservGroups 10 }
frnetservMgtVCSigAdminGroup OBJECT-GROUP
OBJECTS { frMgtVCSigProcedAdmin,
frMgtVCSigUserN391Admin,
frMgtVCSigUserN392Admin,
frMgtVCSigUserN393Admin,
frMgtVCSigUserT391Admin,
frMgtVCSigNetN392Admin,
frMgtVCSigNetN393Admin,
frMgtVCSigNetT392Admin,
frMgtVCSigNetnT3Admin }
STATUS current
DESCRIPTION
"A collection of objects providing information
applicable to the Local In-Channel Signaling
Procedures used for a UNI/NNI logical port."
::= { frnetservGroups 11 }
frnetservPVCNotifGroup NOTIFICATION-GROUP
NOTIFICATIONS { frPVCConnectStatusChange }
STATUS deprecated
DESCRIPTION
"Deprecated notification group. The
frPVCConnectStatusChange notification was flawed
because it included redundant indexes and was not
properly encoded for SMIv1 conversion."
::= { frnetservGroups 12 }
frnetservPVCNotifGroup2 NOTIFICATION-GROUP
NOTIFICATIONS { frPVCConnectStatusNotif }
STATUS current
DESCRIPTION
"A collection of notifications that apply to frame
relay PVC Connections "
::= { frnetservGroups 13 }
END
4. Acknowledgments
This document was produced by the Frame Relay Service MIB Working
Group.
The working group thanks Bert Wijnen, David Perkins, and Bob Stewart
for their assistance in reviewing the MIB.
5. References
[1] Harrington, D., Presuhn, R. and B. Wijnen, "An Architecture for
Describing SNMP Management Frameworks", RFC2571, April 1999.
[2] Rose, M. and K. McCloghrie, "Structure and Identification of
Management Information for TCP/IP-based Internets", STD 16, RFC
1155, May 1990.
[3] Rose, M. and K. McCloghrie, "Concise MIB Definitions", STD 16,
RFC1212, March 1991.
[4] Rose, M., "A Convention for Defining Traps for use with the
SNMP", RFC1215, March 1991.
[5] 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.
[6] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
M. and S. Waldbusser, "Textual Conventions for SMIv2", STD 58,
RFC2579, April 1999.
[7] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
M. and S. Waldbusser, "Conformance Statements for SMIv2", STD
58, RFC2580, April 1999.
[8] Case, J., Fedor, M., Schoffstall, M. and J. Davin, "Simple
Network Management Protocol", STD 15, RFC1157, May 1990.
[9] Case, J., McCloghrie, K., Rose M., and S. Waldbusser,
"Introduction to Community-based SNMPv2", RFC1901, January
1996.
[10] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Transport
Mappings for Version 2 of the Simple Network Management Protocol
(SNMPv2)", RFC1906, January 1996.
[11] Case, J., Harrington D., Presuhn R. and B. Wijnen, "Message
Processing and Dispatching for the Simple Network Management
Protocol (SNMP)", RFC2572, April 1999.
[12] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM)
for version 3 of the Simple Network Management Protocol
(SNMPv3)", RFC2574, April 1999.
[13] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Protocol
Operations for Version 2 of the Simple Network Management
Protocol (SNMPv2)", RFC1905, January 1996.
[14] Levi, D., Meyer, P. and B. Stewart, "SNMPv3 Applications", RFC
2573, April 1999.
[15] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access
Control Model (VACM) for the Simple Network Management Protocol
(SNMP)", RFC2575, April 1999.
[16] Case, J., Mundy, R., Partain, D. and B. Stewart, "Introduction
to Version 3 of the Internet-standard Network Management
Framework", RFC2570, April 1999.
[17] ANSI T1.617-1991, American National Standard for
Telecommunications - Integrated Services Digital Network (ISDN)
- Digital Subscriber Signaling System No. 1 (DSS1) - Signaling
Specification for Frame Relay Bearer Service.
[18] Brown, C. and F. Baker, "Management Information Base for Frame
Relay DTEs", RFC2115, September 1997.
[19] Brown, C. and A. Malis, "Multi-Protocol Interconnect over Frame
Relay", STD 55, RFC2427, September 1998.
[20] Fowler, D, "Definitions of Managed Objects for the DS0 and DS0
Bundle Interface Types", RFC2494, January 1999.
[21] Frame Relay Forum, "Frame Relay Fragmentation Implementation
Agreement", FRF.12, December 1997.
[22] ITU-T Recommendation Q.933,Integrated Services Digital Network
(ISDN) Digital Subscriber Signalling System No. 1 (DSS 1) -
Signalling Specifications for Frame Mode Switched and Permanent
Virtual Connection Control and Status Monitoring, December 1995
[23] ITU-T Recommendation X.36, Interface Between Data Terminal
Equipment (DTE) and Data Circuit-Terminating Equipment (DCE) For
Public Data Networks Providing Frame Relay Data Transmission
Service By Dedicated Circuit, April 1995
[24] Digital Equipment Corporation, et. al., "Frame Relay
Specification with Extensions Based on Proposed T1S1 Standards",
Revision 1.0, September 18, 1990
[25] ITU-T Recommendation Q.922, Integrated Services Digital Network
(ISDN) Data Link Layer Specification For Frame Mode Bearer
Services, February 1992
[26] McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB",
RFC2863, June 2000.
[27] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
"Management Information Base for Version 2 of the Simple Network
Management Protocol (SNMPv2)", RFC1907, January 1996.
[28] Rehbehn, K., Nicklass, O. and G. Mouradian, "Definitions of
Managed Objects for Monitoring and Controlling the Frame
Relay/ATM PVC Service Interworking Function", RFC2955, October
2000.
[29] ITU-T Recommendation E.164/I.331, The International Public
Telecommunication Numbering Plan, May 1997
[30] ITU-T Recommendation X.121, International Numbering Plan For
Public Data Networks, October 1996
[31] Frame Relay Forum, "The Frame Relay Forum User-to-Network
Implementation Agreement (UNI)", FRF 1.2, July 2000.
6. Security Considerations
There are a number of management objects defined in this MIB that
have a MAX-ACCESS clause of read-write and/or read-create. Such
objects may be considered sensitive or vulnerable in some network
environments. The support for SET operations in a non-secure
environment without proper protection can have a negative effect on
network operations.
No managed objects in this MIB contain sensitive information.
SNMPv1 by itself is not a secure environment. 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.
It is recommended that the implementers consider the security
features as provided by the SNMPv3 framework. Specifically, the use
of the User-based Security Model RFC2574 [12] and the View-based
Access Control Model RFC2575 [15] is recommended.
It is then a customer/user responsibility to ensure that the SNMP
entity giving access to an instance of this MIB, 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. Authors' Addresses
Kenneth Rehbehn
Megisto Systems, Inc.
20251 Century Boulevard
Germantown, MD, USA 20874
Phone: (301) 515-3672
EMail: krehbehn@megisto.com
David Fowler
Syndesis Limited
28 Fulton Way
Richmond Hill, Ontario, Canada L4B 1J5
Phone: (905) 886-7818
EMail: fowler@syndesis.com
APPENDIX A Update Information
The changes from RFC1604 are the following:
(1) Added the object frLportDLCIIndexValue to automatically generate
index values for new DLC rows.
(2) Add the following objects to support manager writing to objects:
Logical Port Objects
frLportTypeAdmin
frLportVCSigProtocolAdmin
VC Objects
frMgtVCSigProcedAdmin
frMgtVCSigUserN391Admin
frMgtVCSigUserN392Admin
frMgtVCSigUserN393Admin
frMgtVCSigUserT391Admin
frMgtVCSigNetN392Admin
frMgtVCSigNetN393Admin
frMgtVCSigNetT392Admin
frMgtVCSigNetnT3Admin
(3) Add objects to control fragmentation:
frLportFragControl frLportFragSize
(4) Added objects to track frames offered to network (in) and
delivered (out) for increased visibility into policing-driven
discards, congestion-driven discards, DE-bit setting, and
congestion bit setting:
frPVCEndptInDiscardsDESet
frPVCEndptInFramesFECNSet
frPVCEndptOutFramesFECNSet
frPVCEndptInFramesBECNSet
frPVCEndptOutFramesBECNSet
frPVCEndptInCongDiscards
frPVCEndptInDECongDiscards
frPVCEndptOutCongDiscards
frPVCEndptOutDECongDiscards
frPVCEndptOutDEFrames
(5) Added the PVC object frPVCEndptAtmIwfConnIndex to identify the
type of connection, frame relay or ATM IWF; and to identify the
cross-connect row of the FR/ATM IWF MIB.
(6) Added objects to provide printable names of the connection user
and service provider:
frPVCConnectUserName
frPVCConnectProviderName
(7) Added a new notification to correct flaws in the RFC1604 trap.
The flaws include improper OID suffix (SMIv1 compatibility
issue) and the inclusion of redundant index fields
(8) Updated compliance modules and object groups to reflect the new
objects and notification:
frnetservCompliance2 - New service-centric (read-only)
compliance module
frnetSwitchCompliance - New switch-centric (read-write)
compliance module
frnetservCompliance - Original RFC1604 Module, now
deprecated
frnetservLportGroup - Original RFC1604 logical port
group, now deprecated
frnetservLportGroup2 - Replacement logical port group
frnetservPVCEndptGroup2 - Extension objects with this
revision of the MIB
frnetservPVCConnectNamesGroup - New group w/ display names
for connections
frnetservLportAdminGroup - New group w/ read-write objects
for the logical port
frnetservMgtVCSigAdminGroup - New group w/ read-write objects
for the signaling protocol
frnetservPVCNotifGroup - Group deprecated to eliminate
obsolete frPVCConnectStatusChange
notification
frnetservPVCNotifGroup2 - New group added with w/
frPVCConnectStatusNotif
(9) Added UNITS and REFERENCE clauses for objects that needed the
clarification.
(10) Changed references to "proxy-agent" to "FRS agent" to avoid
confusion with other proxy-agent terminology.
(11) Changed objects using the DisplayString TC to use the
SnmpAdminString TC.
(12) frMgtVCSigProced - Expanded to include the u2nuser(3)
enumeration for the UNI protocol operation where the logical
port operates in the user role.
(13) DESCRIPTION text added to specify agent response when object is
not instantiated for the following objects:
frMgtVCSigUserN391
frMgtVCSigUserN393
frMgtVCSigUserT391
frMgtVCSigUserN392
frMgtVCSigNetN391
frMgtVCSigNetN393
frMgtVCSigNetT391
frMgtVCSigNetN392
frMgtVCSigNetnN4
frMgtVCSigNetnT3
frMgtVCSigUserLinkRelErrors
frMgtVCSigUserProtErrors
frMgtVCSigUserChanInactive
(14) DESCRIPTION text addressing case of logical port not performing
network-side procedures was removed from following objects:
frMgtVCSigNetLinkRelErrors
frMgtVCSigNetChanInactive
frMgtVCSigNetProtErrors
(15) frPVCEndptConnectIdentifier - Operation described for the case
of FR/ATM IWF cross-connect operation.
(16) frPVCEndptRcvdSigStatus - Added description of enumerated
values.
(17) frPVCEndptInDiscards - Clarified DESCRIPTION to state that
congestion discards are not counted by object.
(18) frPVCConnect{Low|High}IfIndex - Changed to use InterfaceIndex TC
and changed reference to MIB-II to the new IF-MIB. Removed
statement asserting that a zero value means the port is not a FR
logical port.
(19) frPVCConnectIndex - Added a range to the SYNTAX clause
(20) frPVCConnect{L2h|H2l}OperStatus - Added DESCRIPTION text for
each enumerated value.
(21) frAccountPVCDLCIIndex - Added a range to the SYNTAX clause
(22) frPVCCOnnectStatusChange Notification - STATUS change to
deprecated. Obsoleted to eliminate inappropriate inclusion of
index objects
(23) frPVCConnectStatusNotif Notification - Replaces
frPVCConnectStatusChange. In addition, the notification now
requires 2 instances of the frPVCEndptRcvdSigStatus object, one
for each endpoint of the connection.
(24) Guidance added to recommend ifLinkUpDownTrapEnable be set on.
(25) Behavior of the PVC status and endpoint signaling status is
clarified for the case of underlying layer failure.
(26) Overview text re-written for clarity.
(27) Clarified role of system group.
(28) Established maximum frame size of 4096 and default value of
1600.
(29) Clarified that DLC index range is restricted to valid range for
the specific length of address field used on the logical port.
(30) Figure 1 and accompanying text was removed to eliminate a
confusing "MIB stack" concept. See the section titled "Relation
to Other MIBs" for replacement text.
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