SIST ETS 300 272 E1:2003

• Abstract:

  .

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 35.110 - Networking
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI ETS 300 272 ed.1 (1994-03) - Network Aspects (NA); Metropolitan Area Network (MAN); Physical Layer Convergence Procedure (PLCP) for 155,520 Mbit/s CCITT Recommendations G.707, G.708 and G.709 SDH based systems Protocol Implementation Conformance Statement (PICS)

SIST ETS 300 272 E1:2003 is the Slovenian adoption of ETS 300 272 Edition 1 from SIST, based on an ETSI European Telecommunication Standard. It defines a Protocol Implementation Conformance Statement (PICS) for the Physical Layer Convergence Procedure (PLCP) at 155,520 Mbit/s in a Metropolitan Area Network (MAN) using the Distributed Queue Dual Bus (DQDB) access method. It is intended for implementers, conformance testers, and buyers or engineers who need to check whether a PLCP implementation matches the MAN profile in ETS 300 216.

What does SIST ETS 300 272 E1:2003 specify?

SIST ETS 300 272 E1:2003 specifies the PICS for the PLCP at 155,520 Mbit/s in the context of a MAN subnetwork defined by ETS 300 216. In practice, it is a conformance checklist: it tells an implementer how to declare support for each feature, parameter, or capability.

The document is organized into:

• Foreword
• Clause 1 Scope
• Clause 2 Normative references
• Clause 3 Definitions
• Clause 4 Symbols and abbreviations
• Clause 5 PICS for ETS 300 216, with subclauses on frame format, path overhead, faults, DQDB out of service, receiver operation, transmitter operation, link status signal operations, and frame timing operations
• History

Clause 5 follows the numbering of ETS 300 216 so that the PICS can be read against the underlying PLCP specification.

What are the key requirements of SIST ETS 300 272 E1:2003?

SIST ETS 300 272 E1:2003 is not a design specification for building the PLCP from scratch. Its main requirement is that an implementation shall conform to the functional models in ETS 300 216 with respect to externally observable behavior, and it records that conformance in a structured PICS form.

Core PICS structure

The PICS uses support markings such as m, o, c, d, and n/a. In practice, that means the implementer states whether each listed item is mandatory, optional, conditional, defaulted, or not applicable, and can record allowed values and deviations.

Frame format and overhead

Clause 5.2 makes the PLCP frame format mandatory, with reference to the frame figures. Clause 5.3 covers the path overhead fields, including J1, B3, C2, G1, the multiframe indicator, LSS in H4, M1 and M2, and Z4 and Z5. This matters because these items are the fields that carry trace, parity, signal label, status, and management information.

Fixed values and default values

Some items are given specific values or defaults in the PICS tables. For example, the signal label C2 and the default codes for certain reserved fields are stated in the tables. For implementers, these entries show which field contents are fixed by the profile and which ones follow a default behavior.

Fault and out-of-service behavior

Clause 5.4 points to the corresponding fault behavior in ETS 300 277. Clause 5.5 requires the PLCP to continue normal operation during DQDB layer out of service and to relay M1 and M2 unmodified. This is important for interoperability because management octets must remain intact across the PLCP.

Receiver and transmitter operation

Clause 5.6.1 requires the receiver-side Bus A and Bus B slot delineation and framing state machines. Clause 5.6.2 requires 125 µs frame generation, transmission of void slots, the H4 pointer, addition of 01010101 to HCS, and transmission of DQDB management octets M1 and M2. These are the behaviors a device must support to handle framing and slot handling correctly.

Status signaling and timing

Clause 5.6.3 describes Link Status Signal (LSS) behavior in each framing state, in addition to IEEE Standard 802.6. Clause 5.6.4 supplements frame timing operations using the timing source information from IEEE Standard 802.6. For readers, this means the document ties PLCP behavior to the MAN timing and status model used by DQDB systems.

What terms does SIST ETS 300 272 E1:2003 define?

SIST ETS 300 272 E1:2003 relies on definitions from IEEE Standard 802.6, and it also uses these PICS abbreviations:

• PICS - Protocol Implementation Conformance Statement, the checklist format used to declare implementation support.
• PLCP - Physical Layer Convergence Procedure, the layer that adapts MAN traffic to the physical layer.
• DQDB - Distributed Queue Dual Bus, the MAN access method used by the referenced system.
• HCS - Header Check Sequence, used in slot delineation and transmission behavior.
• LSS - Link Status Signal, the signal referenced in framing state machine behavior.
• m / o / c / d / n/a - mandatory, optional, conditional, default value defined, and not applicable.

Who uses SIST ETS 300 272 E1:2003?

SIST ETS 300 272 E1:2003 is used by MAN equipment vendors, protocol engineers, interoperability labs, and conformity assessment teams. Buyers and technical specifiers also use it when they need evidence that a product supports the expected PLCP features for ETS 300 216-based systems. It is especially relevant in SDH-based MAN and DQDB environments.

What changed in SIST ETS 300 272 E1:2003 from the previous edition?

SIST ETS 300 272 E1:2003 is identical to ETS 300 272 Edition 1. The document history records the first edition in March 1994 and a PDF conversion in March 1996.

Which standards are used with SIST ETS 300 272 E1:2003?

• ETS 300 216 - the underlying PLCP specification that defines the functional model and frame-related behavior referenced by the PICS.
• ETS 300 212 - the MAN media access control layer and physical layer specification that defines the DQDB context.
• IEEE Standard 802.6 - provides the definitions, abbreviations, and DQDB procedures that the ETS uses.
• CCITT Recommendation I.432 - gives the B-ISDN physical layer relationship referenced for PLCP mapping.
• ETS 300 277 - supplies the corresponding 622,080 Mbit/s SDH PLCP PICS behavior for faults.

What does the SIST ETS 300 272 E1:2003 document contain?

The document contains PICS tables rather than implementation algorithms. Tables 1 to 8 list the items to be declared, their status, allowed support markings, and any specific values or defaults. Figures 1, 2, 4, 6, and 7 are referenced for frame format, multiframe indication, and state machines, while IEEE 802.6 tables are referenced for slot delineation and timing behavior.

Clause 5.3 focuses on path overhead fields, Clause 5.6.2 on transmitter operation, Clause 5.6.3 on LSS behavior, and Clause 5.6.4 on physical layer frame timing. That makes the standard useful for preparing declarations of conformity, checking interoperability, and reviewing whether a product’s observable behavior matches the MAN PLCP profile.

SLOVENSKI STANDARD
01-december-2003
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Network Aspects (NA); Metropolitan Area Network (MAN); Physical Layer Convergence
Procedure (PLCP) for 155,520 Mbit/s CCITT Recommendations G.707, G.708 and
G.709 SDH based systems Protocol Implementation Conformance Statement (PICS)
Ta slovenski standard je istoveten z: ETS 300 272 Edition 1
ICS:
35.110 Omreževanje Networking
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN ETS 300 272
TELECOMMUNICATION March 1994
STANDARD
Source: ETSI TC-NA Reference: DE/NA-053032
ICS: 33.080
MAN, PICS
Key words:
Network Aspects (NA);
Metropolitan Area Network (MAN)
Physical Layer Convergence Procedure (PLCP) for 155,520 Mbit/s
CCITT Recommendations G.707, G.708, G.709
SDH based systems
Protocol Implementation Conformance Statement (PICS)
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
F-06921 Sophia Antipolis CEDEX - FRANCE
Postal address:
650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Office address:
c=fr, a=atlas, p=etsi, s=secretariat - [e-mail]
X.400: Internet:
Tel.: [phone] - Fax: [phone]
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the
foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1994. All rights reserved.
New presentation - see History box

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ETS 300 272: March 1994
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.

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ETS 300 272: March 1994
Contents
Foreword.5
1 Scope .7
2 Normative references .7
3 Definitions. 7
4 Symbols and abbreviations.7
5 PICS for the ETS 300 216 .8
5.1 CCITT Recommendation I.432 relationship to the PLCP.8
5.2 The PLCP frame format.8
5.3 PLCP path overhead field definitions.9
5.4 PLCP behaviour during faults .9
5.5 PLCP behaviour during DQDB layer out of service.9
5.6 PLCP operation . 10
5.6.1 Receiver operation . 10
5.6.2 Transmitter operation . 10
5.6.3 Link status signal operations table . 10
5.6.4 Physical layer frame timing operations table . 11
History. 12

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ETS 300 272: March 1994
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ETS 300 272: March 1994
Foreword
This European Telecommunication Standard (ETS) has been prepared by the Network Aspects (NA)
Technical Committee of the European Telecommunications Standards Institute (ETSI).
This ETS details the Protocol Implementation Conformance Statement (PICS) for the Physical Layer
Convergence Procedure (PLCP) for a European Metropolitan Area Network (MAN) based on the
Distributed Queue Dual Bus (DQDB) access method as defined in ETS 300 212 [2] operating at a
transmission rate of 155,520 Mbit/s in accordance with ETS 300 216 [1].

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ETS 300 272: March 1994
Blank page
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ETS 300 272: March 1994
1 Scope
This European Telecommunication Standard (ETS) defines the Protocol Implementation Conformance
Statement (PICS) for the Physical Layer Convergence Procedure (PLCP) at 155,520 Mbit/s for use in the
context of a subnetwork of a Metropolitan Area Network (MAN) as defined in ETS 300 216 [1].
2 Normative references
This ETS incorporates, by dated or undated reference, provisions from other publications. These normative
references are cited at the appropriate places in the text and the publications are listed below. For dated
references, subsequent amendments to or revisions of these publications apply to this ETS only when
incorporated in it by amendment or revision. For undated references the latest edition of the publication
referred to applies.
[1] ETS 300 216: "Network Aspects (NA); Metropolitan Area Network (MAN)
Physical layer convergence procedure for 155,520 Mbit/s CCITT G.707-9 SDH
based systems".
[2] ETS 300 212: "Network Aspects (NA); Metropolitan Area Network (MAN) Media
access control layer and physical layer specification".
[3] IEEE Standard 802.6 (1990): "Distributed Queue Dual Bus (DQDB) Subnetwork
of a Metropolitan Area Network".
[4] CCITT Recommendation I.432 (1991): "B-ISDN user-network interface -
Physical layer specification".
[5] ETS 300 277: "Network Aspects (NA); Metropolitan Area Network (MAN)
Physical layer convergence procedure for 622,080 Mbit/s CCITT
Recommendations G.707, G.708 and G.709 SDH based systems Protocol
Implementation Conformance Statement (PICS)".
3 Definitions
For the purposes of this ETS, the definitions as defined in IEEE Standard 802.6 [3] shall apply.
4 Symbols and abbreviations
For the purposes of this ETS, the symbols and abbreviations as defined in IEEE Standard 802.6 [3] shall
apply.
Additionally, for this PICS proforma, the following abbreviations are used in defining the support type of a
feature, parameter or capability:
m mandatory
o optional
c conditional
d default value defined
n/a not applicable
When used in the column labelled "Value" the following abbreviations are defined:
xx - yy from number xx to number yy
xx/yy either number xx or number yy applies, depending on the actual conditions

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ETS 300 272: March 1994
For each of the conditional items, an explanation of the parameter or capability under which the feature,
parameter or capability is mandatory is given in the Clause or subclause in which the conditional items
appear.
The notation X_ in the column "Support" means that numbers may be entered in this place pointing to notes
which indicate deviation from the standard.
For ease of reference the numbering of the following Clauses is identical to that contained in
ETS 300 216 [1].
5 PICS for the ETS 300 216
An implementation is required to conform to the functional models defined in ETS 300 216 [1] with regard
to all of the externally observable effects.
5.1 CCITT Recommendation I.432 relationship to the PLCP
See also CCITT Recommendation I.432 [4].
Table 1
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‡Item ‡ Feature     ‡ Reference ‡Status‡Predicate‡ Value      ‡Support ‡
ˆ˜˜˜˜˜¯˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜¯˜˜˜˜˜˜˜˜˜˜˜¯˜˜˜˜˜˜¯˜˜˜˜˜˜˜˜˜¯˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜¯˜˜˜˜˜˜˜˜˜·
‡ 5.1 ‡ General mapping ‡  5.1   ‡ m  ‡     ‡         ‡Y[ ] N[ ]‡
‡   ‡         ‡      ‡   ‡     ‡         ‡  X_  ‡
‡   ‡         ‡      ‡   ‡     ‡         ‡     ‡
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5.2 The PLCP frame format
Table 2
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‡Item ‡ Feature     ‡ Reference ‡Status‡Predicate‡ Value      ‡Support ‡
ˆ˜˜˜˜˜¯˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜¯˜˜˜˜˜˜˜˜˜˜˜¯˜˜˜˜˜˜¯˜˜˜˜˜˜˜˜˜¯˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜¯˜
...