RFC4801
Network Working Group T. Nadeau, Ed. Request for Comment: 4801 Cisco Systems, Inc. Category: Standards Track A. Farrel, Ed.
Old Dog Consulting
February 2007
Definitions of Textual Conventions for Generalized Multiprotocol Label Switching (GMPLS) Management
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 IETF Trust (2007).
Abstract
This document defines a Management Information Base (MIB) module that contains textual conventions (TCs) to represent commonly used Generalized Multiprotocol Label Switching (GMPLS) management information. The intent is that these textual conventions will be imported and used in GMPLS-related MIB modules that would otherwise define their own representations.
Contents
Introduction
This document defines a MIB module that contains textual conventions (TCs) for Generalized Multiprotocol Label Switching (GMPLS) networks. These textual conventions should be imported by MIB modules that manage GMPLS networks.
This MIB module supplements the MIB module in RFC3811 that defines textual conventions for Multiprotocol Label Switching (MPLS) management. RFC3811 may continue to be used without this MIB module in networks that support only MPLS.
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 BCP 14, RFC 2119 RFC2119.
For an introduction to the concepts of GMPLS, see RFC3945.
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.
GMPLS Textual Conventions MIB Definitions
This MIB module makes reference to the following documents: RFC2578, RFC2579, RFC3471, and RFC3811.
GMPLS-TC-STD-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY FROM SNMPv2-SMI -- RFC 2578 TEXTUAL-CONVENTION FROM SNMPv2-TC -- RFC 2579 mplsStdMIB FROM MPLS-TC-STD-MIB -- RFC 3811
gmplsTCStdMIB MODULE-IDENTITY
LAST-UPDATED
"200702280000Z" -- 28 February 2007 00:00:00 GMT
ORGANIZATION
"IETF Common Control and Measurement Plane (CCAMP) Working Group"
CONTACT-INFO
" Thomas D. Nadeau
Cisco Systems, Inc.
Email: [email protected]
Adrian Farrel
Old Dog Consulting
Email: [email protected]
Comments about this document should be emailed directly to the
CCAMP working group mailing list at [email protected]"
DESCRIPTION
"Copyright (C) The IETF Trust (2007). This version of
this MIB module is part of RFC 4801; see the RFC itself for
full legal notices.
This MIB module defines TEXTUAL-CONVENTIONs for concepts used in
Generalized Multiprotocol Label Switching (GMPLS) networks."
REVISION
"200702280000Z" -- 28 February 2007 00:00:00 GMT
DESCRIPTION
"Initial version published as part of RFC 4801."
- = { mplsStdMIB 12 }
GmplsFreeformLabelTC ::= TEXTUAL-CONVENTION
STATUS current DESCRIPTION
"This TEXTUAL-CONVENTION can be used as the syntax of an object
that contains any GMPLS Label. Objects with this syntax can be
used to represent labels that have label types that are not
defined in any RFCs. The freeform GMPLS Label may also be used
by systems that do not wish to represent labels that have
label types defined in RFCs using type-specific syntaxes."
REFERENCE
"1. Generalized Multi-Protocol Label Switching (GMPLS) Signaling
Functional Description, RFC 3471, section 3.2."
SYNTAX OCTET STRING (SIZE (0..64))
GmplsLabelTypeTC ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"Determines the interpretation that should be applied to an
object that encodes a label. The possible types are:
gmplsMplsLabel(1) - The label is an MPLS Packet, Cell,
or Frame Label and is encoded as
described for the TEXTUAL-
CONVENTION MplsLabel defined in
RFC 3811.
gmplsPortWavelengthLabel(2) - The label is a Port or Wavelength
Label as defined in RFC 3471.
gmplsFreeformLabel(3) - The label is any form of label
encoded as an OCTET STRING using
the TEXTUAL-CONVENTION
GmplsFreeformLabel.
gmplsSonetLabel(4) - The label is a Synchronous Optical
Network (SONET) Label as
defined in RFC 4606.
gmplsSdhLabel(5) - The label is a Synchronous Digital
Hierarchy (SDH) Label as defined
in RFC 4606.
gmplsWavebandLabel(6) - The label is a Waveband Label as
defined in RFC 3471."
REFERENCE
"1. Generalized Multi-Protocol Label Switching (GMPLS) Signaling
Functional Description, RFC 3471, section 3.
2. Definition of Textual Conventions and for Multiprotocol Label
Switching (MPLS) Management, RFC 3811, section 3.
3. Generalized Multi-Protocol Label Switching (GMPLS) Extensions
for Synchronous Optical Network (SONET) and Synchronous
Digital Hierarchy (SDH) Control, RFC 4606." SYNTAX INTEGER { gmplsMplsLabel(1), gmplsPortWavelengthLabel(2), gmplsFreeformGeneralizedLabel(3), gmplsSonetLabel(4), gmplsSdhLabel(5), gmplsWavebandLabel(6) }
GmplsSegmentDirectionTC ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"The direction of data flow on an Label Switched Path (LSP)
segment with respect to the head of the LSP.
Where an LSP is signaled using a conventional signaling
protocol, the 'head' of the LSP is the source of the signaling
(also known as the ingress) and the 'tail' is the destination
(also known as the egress). For unidirectional LSPs, this
usually matches the direction of flow of data.
For manually configured unidirectional LSPs, the direction of
the LSP segment matches the direction of flow of data. For
manually configured bidirectional LSPs, an arbitrary decision
must be made about which LER is the 'head'."
SYNTAX INTEGER {
forward(1), -- data flows from head-end of LSP toward tail-end
reverse(2) -- data flows from tail-end of LSP toward head-end
}
END
Security Considerations
This module does not define any management objects. Instead, it defines a set of textual conventions which may be used by other GMPLS MIB modules to define management objects.
Meaningful security considerations can only be written in the MIB modules that define management objects. Therefore, this document has no impact on the security of the Internet.
IANA Considerations
IANA has rooted MIB objects in this MIB module under the mplsStdMIB subtree by assigning an OID to gmplsTCStdMIB.
IANA has made the following assignments in the "NETWORK MANAGEMENT PARAMETERS" registry located at http://www.iana.org/assignments/smi- numbers in table:
...mib-2.transmission.mplsStdMIB (1.3.6.1.2.1.10.166)
Decimal Name References ------- ----- ---------- 12 GMPLS-TC-STD-MIB RFC4801
In the future, GMPLS-related standards-track MIB modules should be rooted under the mplsStdMIB (sic) subtree. IANA has been requested to manage that namespace in the SMI Numbers registry RFC3811. New assignments can only be made via a Standards Action as specified in RFC2434.
References
Normative References
RFC2119 Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
RFC2434 Narten, T. and H. Alvestrand, "Guidelines for Writing an
IANA Considerations Section in RFCs", BCP 26, RFC 2434, October 1998.
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.
RFC3471 Berger, L., "Generalized Multi-Protocol Label Switching
(GMPLS) Signaling Functional Description", RFC 3471, January 2003.
RFC3811 Nadeau, T. and J. Cucchiara, "Definitions of Textual
Conventions (TCs) for Multiprotocol Label Switching (MPLS)
Management", RFC 3811, June 2004.
RFC4606 Mannie, E. and D. Papadimitriou, "Generalized Multi-
Protocol Label Switching (GMPLS) Extensions for Synchronous
Optical Network (SONET) and Synchronous Digital Hierarchy
(SDH) Control", RFC 4606, August 2006.
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.
RFC3945 Mannie, E., "Generalized Multi-Protocol Label Switching
(GMPLS) Architecture", RFC 3945, October 2004.
Acknowledgements
This document is a product of the CCAMP Working Group.
Special thanks to Joan Cucchiara for her help with compilation issues and her very thorough MIB Doctor review. Thanks also to Lars Eggert, David Harrington, Harrie Hazewinkel, Dan Romascanu, and Bert Wijnen for their review comments.
Contact Information
Thomas D. Nadeau Cisco Systems, Inc. 1414 Massachusetts Ave. Boxborough, MA 01719
EMail: [email protected]
Adrian Farrel Old Dog Consulting
Phone: +44 1978 860944 EMail: [email protected]
Cheenu Srinivasan Bloomberg L.P. 731 Lexington Ave. New York, NY 10022
Phone: +1-212-617-3682 EMail: [email protected]
Tim Hall Data Connection Ltd. 100 Church Street Enfield, Middlesex EN2 6BQ, UK
Phone: +44 20 8366 1177 EMail: [email protected]
Ed Harrison Data Connection Ltd. 100 Church Street Enfield, Middlesex EN2 6BQ, UK
Phone: +44 20 8366 1177 EMail: [email protected]
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Copyright (C) The IETF Trust (2007).
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