Network Working Group Igor Bryskin
Category: Informational Independent Consultant
Expires: December 2005 Adrian Farrel
Old Dog Consulting
June 2005
A Lexicography for the Interpretation of Generalized Multiprotocol
Label Switching (GMPLS) Terminology within The Context of the
ITU-T's Automatically Switched Optical Network (ASON) Architecture
draft-ietf-ccamp-gmpls-ason-lexicography-03.txt
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Abstract
Generalized Multiprotocol Label Switching (GMPLS) has been developed
by the IETF to facilitate the establishment of Label Switched Paths
(LSPs) in a variety of data plane technologies and across several
architectural models. The ITU-T has specified an architecture for
the control of Automatically Switched Optical Networks (ASON).
This document provides a lexicography for the interpretation of GMPLS
terminology within the context of the ASON architecture.
It is important to note that GMPLS is applicable in a wider contexts
than ASON. The definitions presented in this document do not provide
exclusive or complete interpretations of GMPLS concepts. This
document simply to allows the GMPLS terms to be applied within the
ASON context.
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Contents
1. Introduction ................................................ 3
2. Terminology Sources ......................................... 3
2.1. GMPLS Terminology Sources ................................... 3
2.2. ASON Terminology Sources .................................... 3
2.3. Common Terminology Sources .................................. 4
3. Lexicography................................................. 4
3.1. Network Presences ........................................... 4
3.2. Resources ................................................... 5
3.3. Layers ...................................................... 6
3.4. Labels ...................................................... 6
3.5. Data Links .................................................. 6
3.6. Link interfaces ............................................. 7
3.7. Connections ................................................. 8
3.8. Switching, Termination and Adaptation Capabilities .......... 8
3.9. TE Links and FAs ............................................ 9
3.10. TE Domain ................................................. 11
3.11. Component Links and Bundles ............................... 11
3.12. Regions ................................................... 11
4. Guidance on the Application of this Lexicography ............. 13
5. IANA Considerations .......................................... 13
6. Management Considerations .................................... 13
7. Security Considerations ...................................... 13
8. Acknowledgements ............................................. 14
9. Intellectual Property Consideration .......................... 14
10. Normative References ........................................ 14
11. Informational References .................................... 15
12. Authors' Addresses .......................................... 16
13. Disclaimer of Validity ...................................... 17
14. Full Copyright Statement .................................... 17
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1. Introduction
Generalized Multiprotocol Label Switching (GMPLS) has been developed
by the IETF to facilitate the establishment of Label Switched Paths
(LSPs) in a variety of data plane technologies such as Packet
Switching Capable (PSC), Layer Two Switching Capable (L2SC), Time
Division Multiplexing (TDM), Lambda Switching Capable (LSC), and
Fiber Switching Capable (FSC).
The ITU-T has specified an architecture for the control of
Automatically Switched Optical Networks (ASON). This architecture
forms the basis of many Recommendations within the ITU-T.
Because the GMPLS and ASON architectures were developed by different
people in different standards bodies, and because the architectures
have very different historic backgrounds (the Internet, and transport
networks respectively), the terminology used is different.
This document provides a lexicography for the interpretation of GMPLS
terminology within the context of the ASON architecture. This
allows GMPLS documents to be generally understood by those familiar
with ASON Recommendations. The definitions presented in this document
do not provide exclusive or complete interpretations of the GMPLS
concepts.
2. Terminology Sources
2.1. GMPLS Terminology Sources
GMPLS Terminology is principally defined in [RFC3945]. Other
documents provide further key definitions including [GMPLS-RTG],
[BUNDLE], [LSP-HIER] and [LMP].
The reader should be familiar with these other documents before
attempting to use this document to provide a mapping to between GMPLS
and ASON.
For details of GMPLS signaling please refer to [RFC3471] and
[RFC3473]. For details of GMPLS routing, please refer to [GMPLS-OSPF]
and [GMPLS-ISIS].
2.2. ASON Terminology Sources
The ASON architecture is specified in ITU-T Recommendation G.8080
[G-8080]. This is developed from generic functional architectures and
requirements specified in [G-805], [G-807] and [G-872]. The ASON
terminology is defined in several Recommendations in the ASON family
such as G.8080, G.8081, G.7713, G.7714, and G.7715.
The reader must be familiar with these documents before attempting to
apply the lexicography set out here.
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2.3. Common Terminology Sources
The work in this document builds on the shared view of ASON
requirements and requirements expressed in [ASON-SIG], [ASON-RTG] and
[TRANSPORT-LMP].
3. Lexicography
3.1. Network Presences
3.1.1. GMPLS Terms
Transport node [Data Plane] is a logical network device that is
capable of originating and/or terminating of a data flow and/or
switching it on the route to its destination.
Controller [Control Plane] is a logical entity that models all
control plane intelligence (routing, TE and signaling protocols,
path computation, etc). A single controller can manage one or
several transport nodes. Separate functions (such as routing and
signaling) may be hosted at distinct sites and hence could be
considered as separate logical entities referred, for example, as
routing controller, signaling controller, etc.
Node [Control & Data Planes] is a logical combination of a
transport node and the controller that manages the transport node.
In early deployments, all control plane and data plane functions
associated with a transport node were collocated in a node and
referred to as a Label Switching Router (LSR).
Control plane network [Control Plane] is an IP network used for
delivery of control plane (protocol) messages exchanged by
controllers.
3.1.2. ASON Terms
A GMPLS transport node is an ASON network element.
A GMPLS controller is the set of ASON functional components
controlling a given ASON network element (or partition of a network
element). In ASON this set of functional components may exist in one
place or multiple places.
A GMPLS node is the combination of an ASON network element (or
partition of a network element) and its associated control
components.
The GMPLS control plane network is the ASON Signaling Communication
Network (SCN). Note that both routing and signaling exchanges are
carried by the SCN.
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3.2. Resources
3.2.1. GMPLS Terms
Non-packet based resource [Data Plane] is a channel of certain
bandwidth that could be allocated in a network data plane of a
particular technology for the purpose of user traffic delivery.
Examples of non-packet based resources are timeslots, lambda
channels, etc.
Packet based resource [Data Plane] is an abstraction hiding means
related to delivery of traffic with particular parameters (most
importantly, bandwidth) with particular QoS over PSC media.
Examples of packet based resources are forwarding queues,
schedulers, etc.
Layer Resource (Resource) [Data Plane]. A non-packet based data plane
technology may yield resources in different network layers (see
section 3.3). For example, some TDM devices can operate with VC-12
timeslots, some with VC-4 timeslots and some with VC4-4c timeslots.
There are also multiple layers of packet based resources (i.e. one
per label in the label stack). Therefore, we define layer resource
(or simply resource) irrespective of underlying data plane
technology as a basic data plane construct. It is defined by a
combination of a particular data encoding type and
switching/terminating bandwidth granularity.
All other definitions provided in this memo are tightly bound to the
resource. Examples of layer resources are: PSC1, PSC4, ATM VP, ATM
VC, Ethernet, VC-12, VC-4, Lambda 10G, Lambda 40G.
These three definitions give rise to the concept of Resource Type.
Although not a formal term, this is useful shorthand to identify how
and where a resource can be used dependent on the switching type,
data encoding type and switching/terminating bandwidth granularity
(see section 3.8).
3.2.2. ASON Terms
In ASON applications:
- Connection point (cp) in the context of link discovery and resource
management (allocation, binding into cross-connects, etc.).
- Link connection or trail termination in the context of routing,
path computation and signaling.
Resource type is identifies by a client CI (characteristics
information) that could be carried by the resource.
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3.3. Layers
3.3.1. GMPLS Terms
Layer [Data Plane] is a set of resources of the same type that could
be used for establishing a connection or used for connectionless
data delivery.
Note. In GMPLS, the existence of non-blocking switching function in a
transport node in a particular layer is modeled explicitly as one of
the functions of link interfaces connecting the transport node to its
data links.
A GMPLS layer is not the same as a GMPLS region. See section 3.12.
3.3.2. ASON Terms
A GMPLS layer is an ASON layer network.
3.4. Labels
3.4.1. GMPLS Terms
Label [Control Plane] is an abstraction that provides an identifier
for use in the control plane in order to identify a transport plane
resource.
3.4.2. ASON Terms
A GMPLS label is the portion of an ASON SNP name that follows the
SNPP name.
3.5. Data Links
3.5.1. GMPLS Terms
Unidirectional data link end [Data Plane] is a set of resources of a
particular layer that belong to the same transport node and could
be allocated for transfer of traffic in this layer to the same
neighbor in the same direction.
Bidirectional data link end [Data Plane] is an association of two
unidirectional data link ends of a particular layer that belong to
the same transport node and could be used for transfer of traffic
in this layer to/from the same neighbor in both directions.
Unidirectional data link [Data Plane] is an association of two
unidirectional data link ends of a particular layer belonging to
two transport nodes adjacent in this layer that could be used for
transfer of traffic between the two transport nodes in one
direction.
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Bidirectional data link [Data Plane] is an association of two
bidirectional data link ends of a particular layer belonging to two
transport nodes adjacent in this layer that could be used for
transfer of traffic between the two transport nodes in both
directions.
3.5.2. ASON Terms
A GMPLS unidirectional data link end is a collection of ASON
connection points from the same client layer that are supported by a
single ASON trail termination (access point).
A GMPLS data link is an ASON link supported by a single server
trail.
3.6. Link interfaces
3.6.1. GMPLS Terms
Unidirectional link interface [Data Plane] is an abstraction that
connects a transport node to a unidirectional data link end and
represents (hides) the data plane intelligence like switching,
termination and adaptation in one direction. In GMPLS, link
interfaces are often referred to as "GMPLS interfaces" and it
should be understood that these are data plane interfaces and the
term does not refer to the ability of a control plane interface to
handle GMPLS protocols.
A single unidirectional data link end could be connected to a
transport node by multiple link interfaces with one of them, for
example, realizing switching function, while others realize the
function of termination/adaptation.
Bidirectional link interface [Data Plane] is an association of two or
more unidirectional link interfaces that connects a transport node
to a bi-directional data link end and represents the data plane
intelligence like switching, termination and adaptation in both
directions.
Link interface type [Data Plane] is identified by the function the
interface provides. There are three distinct functions - switching,
termination and adaptation, hence, there are three types of link
interfaces. Thus when a WDM link can do switching for some lambda
channels and termination and TDM OC48 adaptation for some other
lambda channels, we say that the link is connected to the transport
node by three interface each of a separate type: switching,
termination and adaptation.
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3.6.2. ASON Terms
A GMPLS interface is "all the stuff between a link and a matrix in
an ASON network element." More precisely, it is an ASON trail
termination function and adaptation function for which adapted client
layer connection points are bound to a matrix.
The GMPLS interface type may be identified by the ASON adapted
client layer or by the terminated server layer or a combination
of the two, depending on the context. In some cases, a GMPLS
interface comprises a set (stack) of ASON trail
termination/adaptation functions, for which some connection
points are bound to trail terminations and others to matrices.
3.7. Connections
3.7.1. GMPLS Terms
In GMPLS a connection is known as a Label Switched Path (LSP).
Unidirectional connection (LSP) [Data Plane] is a single resource or
a set of cross-connected resources of a particular layer that could
deliver traffic in this layer between a pair of transport nodes in
one direction.
Bidirectional connection (LSP) [Data Plane] is an association of two
unidirectional connections that could simultaneously deliver
traffic in a particular layer between a pair of transport nodes in
opposite directions.
In the context of GMPLS both unidirectional constituents of a
bidirectional connection (LSP) take identical paths in terms of
data links and could be provisioned concurrently.
LSP (connection) segment [Data Plane] is a single resource or a set
of cross-connected resources that constitutes a segment of a
connection.
3.7.2. ASON Terms
A GMPLS connection is an ASON network connection.
A GMPLS LSP segment is an ASON serial compound link connection.
3.8. Switching, Termination and Adaptation Capabilities
3.8.1. GMPLS Terms
Switching capability [Data Plane] is a property (and defines a type)
of a link interface that connects a particular data link to a
transport node. This property/type characterizes the interface's
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ability to cooperate with other link interfaces connecting data
links within the same layer to the same transport node for the
purpose of binding resources in cross-connects. Switching
capability is advertised as an attribute of the TE link local end
associated with the link interface.
Termination capability [Data Plane] is a property of a link interface
that connects a particular data link to a transport node. This
property characterizes the interface's ability to terminate
connections within the layer the data link belongs to.
Adaptation capability [Data Plane] is a property of a link interface
that connects a particular data link to a transport node. This
property characterizes the interface's ability to perform a nesting
function - to use a locally terminated connection that belongs to
one layer as a data link for some other layer(s).
The need for advertisement of adaptation and termination capabilities
within GMPLS has been recognized and work is in progress to determine
how these will be advertised. It is likely that they will be
advertised as a single combined attribute, or as a separate
attributes of the TE link local end associated with the link
interface.
3.8.2. ASON Terms
In ASON applications:
The GMPLS switching capability is a property of an ASON link
end representing its association with a matrix.
The GMPLS termination capability is a property of an ASON
link end representing potential binding to a termination
point.
The GMPLS adaptation capability is a property of an ASON
link end representing potential adaptation to/from a client
layer network.
3.9. TE Links and FAs
3.9.1. GMPLS Terms
TE link end [Control Plane] is a grouping for the purpose of
advertising and routing of resources of a
particular layer.
Such a grouping allows for decoupling of path selection from
resource assignment. Specifically, a path could be selected in a
centralized way in terms of TE link ends, while the resource
assignment (resource reservation and label allocation) could be
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performed in a distributed way during the connection setup. A TE
link end may reflect zero, one or several data link ends in the
data plane. A TE link end is associated with exactly one layer.
TE link [Control Plane] is a grouping of two TE link ends associated
with two neighboring transport nodes in a particular layer.
In contrast to data link, which provides network flexibility in a
particular layer and, therefore, is a "real" topological element,
TE link is a logical routing element. For example, an LSP path is
computed in terms of TE links (or more precisely, in terms of TE
link ends), while the LSP is provisioned over (that is, resources
are allocated from) data links.
Virtual TE link is a TE link associated with zero data links.
TE link end advertising [Control Plane]. A controller managing a
particular transport node advertises local TE link ends. Any
controller in the TE domain makes a TE link available for its local
path computation if it receives consistent advertisements of both
TE link ends. Strictly speaking, there is no such a thing as TE
link advertising - only TE link end advertising. TE link end
advertising may contain information about multiple switching
capabilities. This, however, should not be interpreted as
advertising of a multi-layer TE link end, rather, as joint
advertisement of ends of multiple parallel TE links, each
representing resources in separate layers. The advertisement may
contain attributes shared by all TE links in the group (examples:
protection capabilities, SRLGs, etc), separate information related
to each TE link (examples: switching capability, data encoding,
unreserved bandwidth, etc) as well as information related to
inter-layer relationships of the advertised resources (example:
termination and adaptation capabilities) should the control plane
decide to use them as termination of higher layer data links. These
higher layer data links, however, are not real yet - they are
abstract until the underlying connections are established in lower
layers. LSPs created in lower layers for the purpose of providing
data links (extra network flexibility) in higher layers are called
hierarchical connections/LSPs (H-LSPs) or simply hierarchies. LSPs
created for the purpose of providing data links in the same layer
are called stitching segments. H-LSPs and stitching segments could,
but do not have to be advertised as TE links. Naturally, if they
are advertised as TE links (LSPs advertised as TE links are often
referred as TE-LSPs), they are made available for path computations
performed on any controller within the TE domain into which they
are advertised. H-LSPs and stitching segments could be advertised
either individually or in TE bundles. An H-LSP or a stitching
segment could be advertised as a TE link either into the same or a
separate TE domain compared to the one within which it was
provisioned.
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A set of H-LSPs that are and/or could be created in a particular
layer to provide network flexibility (data links) in other layer(s)
is called Virtual network topology (VNT). A single H-LSP could
provide several (more than one) data links (each in a different
layer).
Forwarding Adjacency (FA) [Control Plane] is a TE link that does not
require a direct routing adjacency (peering) between controllers
managing either of its ends in order to guarantee control plane
connectivity (control channel) between the controllers. An example
of an FA is an H-LSP or stitching segment advertised as a TE
link into the same TE domain within which it was dynamically
provisioned. In such cases, the control plane connectivity between
the controllers at the ends of H-LSP/stitching segment is
guaranteed by the concatenation of control channels interconnecting
the ends of each of its constituents. In contrast, a H-LSP or
stitching segment advertised as a TE link into a different TE
domain compared to one where it was provisioned, generally requires
a direct routing adjacency to be established within the TE domain
where the TE link is advertised in order to guarantee control plane
connectivity between the TE link ends, and, therefore, is not an
FA.
3.9.2. ASON Terms
The ITU term for a TE link end is SNP pool (SNPP).
The ITU term for a TE link is SNPP link.
The ITU term for a H-LSP is trail.
3.10. TE Domain
3.10.1 GMPLS Terms
TE link attribute is a parameter of the set of resources associated
with a TE link end that is significant in the context of path
computation.
Full TE visibility is a situation when a controller receives all
unmodified TE advertisements from any other controller from a
particular set of controllers.
Limited TE visibility is a situation when a controller receives
summarized TE information or does not receive one at all from some
of controllers on the network.
TE domain is a set of controllers each of which has full TE
visibility within the set.
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TE database (TED) is a memory structure within a controller that
contains all TE advertisements generated by all controllers within
a particular TE domain.
Virtual network integration is a set of collaborative mechanisms
within a single node driving multiple (at least two) layers and the
adaptation between the layers.
Horizontal network integration is a set of collaborative mechanisms
within a single instance of the control plane driving multiple (at
least two) TE domains or between different instances of the control
plane.
3.11. Component Links and Bundles
3.11.1. GMPLS Terms
Component link end [Control Plane] is a grouping of resources of a
particular layer that is not advertised as an individual TE link
end. A component link end could represent one or more data link
ends or any subset of resources that belong to one or more data
link ends.
Component link [Control Plane] is a grouping of two or more component
link ends associated with neighboring transport nodes (that is,
directly interconnected by one or more data links) in a particular
layer. Component links are equivalent to TE links except that the
component link ends are not advertised separately.
TE bundle [Control Plane] is an association of several parallel (that
is, connecting the same pair of transport nodes) component links
whose attributes are identical or whose differences sufficiently
negligible that the TE domain can view the entire association as a
single TE link. A TE bundle is advertised in the same way as a TE
link, that is, by representing the associated component link ends
as a single TE link end (TE bundle end) which is advertised.
3.12. Regions
3.12.1. GMPLS Terms
TE region [Control Plane] is a set of one or more layers that are
associated with the same type of data plane technology. A TE region
is sometimes called an LSP region or just a region. Examples of
regions are: IP, ATM, TDM, photonic, fiber switching, etc. Regions
and region boundaries are significant for the signaling sub-system
of the control plane because LSPs are signaled substantially
differently (i.e. use different signaling object formats and
semantics) in different regions. Furthermore, advertising, routing
and path computation could be performed differently in different
regions. For example, computation of paths across photonic regions
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requires a wider set of constraints (e.g. optical impairments,
wavelength continuity, etc) and needs to be performed in different
terms (e.g. in terms of individual resources - lambda channels,
rather than in terms of TE links) compared to path computation in
other regions like IP or TDM.
4. Guidance on the Application of this Lexicography
As discussed in the introduction to this document, this lexicography
is intended to bring the concepts and terms associated with GMPLS
into the context of the ITU's ASON architecture. Thus, it should help
those familiar with ASON to see how they may use the features and
functions of GMPLS in order to meet the requirements of an ASON. For
example, a service provider wishing to establish a protected
end-to-end service, might read [SEG-PROT] and [E2E-PROT] and wish to
understand how the GMPLS terms used relate to the ASON architecture
so that he can confirm that he will satisfy his requirements.
This lexicography should not be used in order to obtain or derive
definitive definitions of GMPLS terms. To obtain definitions of GMPLS
terms that are applicable across all GMPLS architectural models, the
reader should refer to the RFCs listed in the references sections of
this document. [RFC3945] provides an overview of the GMPLS
architecture and should be read first.
5. IANA Considerations
This informational document defines no new code points and requires
no action by IANA.
6. Management Considerations
Both GMPLS and ASON networks require management. Both GMPLS and ASON
specifications include considerable efforts to provide operator
control and monitoring, as well as OAM functionality.
These concepts are, however, out of scope of this document.
7. Security Considerations
Security is also a significant requirement of both GMPLS and ASON
architectures.
Again, however, this informational document is intended only to
provide a lexicography, and the security concerns are, therefore, out
of scope.
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8. Acknowledgements
The authors would like to thank participants in the IETF's CCAMP
working group and the ITU-T's Study Group 15 for their help in
producing this document. In particular, all those who attended the
Study Group 15 Question 14 Interim Meeting in Holmdel, New Jersey
during January 2005.
Many thanks to Ichiro Inoue of NTT for his useful review and input,
and to Scott Brim and Dimitri Papadimitriou for lengthy and
constructive discussions. Ben Mack-Crane and Jonathan Sadler
provided very helpful reviews and discussions of ASON terms.
9. Intellectual Property Consideration
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.
10. Normative References
[RFC3945] E. Mannie (Ed.). "Generalized Multi-Protocol Label
Switching (GMPLS) Architecture", RFC 3945, October
2004.
[BUNDLE] Kompella, K., Rekhter, Y., and Berger, L., "Link
Bundling in MPLS Traffic Engineering",
<draft-ietf-mpls-bundle>, work in progress.
[GMPLS-RTG] Kompella, K. and Rekhter, Y., "Routing Extensions in
Support of Generalized Multi-Protocol Label
Switching", <draft-ietf-ccamp-gmpls-routing>, work
in progress.
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[LSP-HIER] Kompella, K. and Rekhter, Y., "LSP Hierarchy with
Generalized MPLS TE",
<draft-ietf-mpls-lsp-hierarchy>, work in progress.
[LMP] J. Lang (Ed.), "Link Management Protocol (LMP)",
<draft-ietf-ccamp-lmp>, work in progress.
11. Informational References
[RFC3471] L. Berger (Ed.), "Generalized Multi-Protocol Label
Switching (GMPLS) Signaling Functional Description",
RFC 3471, January 2003.
[RFC3473] L. Berger (Ed.), "Generalized Multi-Protocol Label
Switching (GMPLS) Signaling Resource ReserVation
Protocol-Traffic Engineering (RSVP-TE) Extensions",
RFC 3471, January 2003.
[ASON-RTG] D. Brungard (Ed.), "Requirements for Generalized
MPLS (GMPLS) Routing for Automatically Switched
Optical Network (ASON)",
<draft-ietf-ccamp-gmpls-ason-routing-reqts>, work in
progress.
[ASON-SIG] Papadimitriou, D., Drake, J., Ash, J., Farrel, A.,
and Ong, L., "Requirements for Generalized MPLS
(GMPLS) Signaling Usage and Extensions for
Automatically Switched Optical Network (ASON)",
<draft-ietf-ccamp-gmpls-ason-reqts>, work in
progress.
[E2E-PROT] Lang, J., Rekhter, Y., and Papadimitriou, D. (Eds.),
"RSVP-TE Extensions in support of End-to-End
Generalized Multi-Protocol Label Switching
(GMPLS)-based Recovery",
<draft-ietf-ccamp-gmpls-recovery-e2e-signaling>,
work in progress.
[GMPLS-ISIS] Kompella, K., and Rekhter, Y. (Ed.), "IS-IS
Extensions in Support of Generalized MPLS",
<draft-ietf-isis-gmpls-extensions>, work in
progress.
[GMPLS-OSPF] Kompella, K., and Rekhter, Y. (Ed.), "OSPF
Extensions in Support of Generalized MPLS",
<draft-ietf-ccamp-ospf-gmpls-extensions>, work in
progress.
Bryskin and Farrel Page 15
draft-ietf-ccamp-gmpls-ason-lexicography-03.txt June 2005
[SEG-PROT] Berger, L., Bryskin, I., Papadimitriou, D., and
Farrel, A., "GMPLS Based Segment Recovery",
<draft-ietf-ccamp-gmpls-segment-recovery>, work in
progress.
[TRANSPORT-LMP] Fedyk, D., Aboul-Magd, O., Brungard, D., Lang, J.,
Papadimitriou, D., "A Transport Network View of LMP"
<draft-ietf-ccamp-transport-lmp>, work in progress.
For information on the availability of the following documents,
please see http://www.itu.int.
[G-8080] ITU-T Recommendation G.8080/Y.1304, Architecture for
the automatically switched optical network (ASON).
[G-805] ITU-T Recommendation G.805 (2000), Generic
functional architecture of transport networks.
[G-807] ITU-T Recommendation G.807/Y.1302 (2001),
Requirements for the automatic switched transport
network (ASTN).
[G-872] ITU-T Recommendation G.872 (2001), Architecture of
optical transport networks.
[G-8081] ITU-T Recommendation G.8081 (2004), Terms and
definitions for Automatically Switched Optical
Networks (ASON).
[G.7713] ITU-T Recommendation G.7713 (2001), Distributed Call
and Connection Management.
[G.7714] ITU-T Recommendation G.7714 Revision (2005),
Generalized automatic discovery techniques.
[G.7715] ITU-T Recommendation G.7715 (2002), Architecture and
Requirements for the Automatically Switched Optical
Network (ASON)
12. Authors' Addresses
Igor Bryskin
Independent Consultant
EMail: i_bryskin@yahoo.com
Adrian Farrel
Old Dog Consulting
Phone: +44 (0) 1978 860944
EMail: adrian@olddog.co.uk
Bryskin and Farrel Page 16
draft-ietf-ccamp-gmpls-ason-lexicography-03.txt June 2005
13. Disclaimer of Validity
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.
14. Full Copyright Statement
Copyright (C) The Internet Society (2005). 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.
Bryskin and Farrel Page 17
Datatracker
draft-ietf-ccamp-gmpls-ason-lexicography-03
Internet-Draft
