CableLabsSpecification Engineering Change (EC) Form
Project
EC TRACKING INFORMATION (Blue fields to be completed by CableLabs only)
N Identifier MULPIv2.0-N-14.0126-1
Status
DPoE
Affected Specification
ECR Date
ECO Date
ECN Date
ECN Effective Date
Version
DPOE-SP-MULPIV2.0-I04-131114
1/30/2014
Comment Period End Date 2/13/2014
SEVERITY
2/13/2014
Comment Period End Date 2/27/2014
Non-Critical
Minor
2/27/2014
CW108
Critical
Cert Wave No
Overall Type of Change (Tech/Edit/Both) Both
TO OBTAIN LATEST ISSUED SPECIFICATION VERSION, CLICK HERE :
https://www.cablelabs.com/doczone/dpoe/requirements/specs/current/issued/
TO SUBMIT EC, EMAIL COMPLETED FORM TO: dpoe-ec@cablelabs.com
SPECIFICATION DOCUMENT DETAILS
Document EC is written against: DPoE-SP-MULPIv2.0 Issued Version # 04
AUTHOR INFORMATION
Primary Author
Email
Company
Additional Contributors
First Lane Last Johnson
l.johnson@cablelabs.com
CableLabs
Karthik Sundareson
Title of EC
Date sent to CableLabs
Data Rate Unit Setting for DPoE 2.0
1/30/201
4
Date of revised EC
Brief description of revision
1/30/2014
Data Rate Unit Setting
Country
Phone
USA
3036613353
ENGINEERING CHANGE DOCUMENT DETAILS
EC REVISION HISTORY
DETAILED PROPOSED CHANGES
Sections Affected
REQs Affected
Yes
Test Plans Affected
Unknown
OTHER RELATED ENGINEERING CHANGES (LIST ALL THE APPLY)
The following EC(s) are recommended to be processed in conjunction with this document:
EC#
Title of EC
Affected Document
DETAILED DESCRIPTION OF PROBLEM:
The current maximum value which can be provisioned for SF QoS parameters like the “max sustained rate” is ~4
Gbit/s (232-1 bit/s). With DOCSIS TLVs now being used for configuration of services in DPoE Networks, which
support data rates up to 10 Gbit/s (1G-EPON and 10G-EPON), we need a way to set data rates per SF in excess of
~4 Gbit/s, currently supported by the 32-bit wide TLVs.
This EC proposes a change to extend the range of these data rates in a backward compatible manner, with the
addition of a data rate multiplier TLV
DPoE_Spec-TestPlan_EC-Form_01-2013.docx
1 of 2
In submitting the Engineering Change Request ("ECR"), the Author(s) [primary author, additional authors, and contributors], individually and as
an authorized representative of the Company, agrees that if CableLabs incorporates this ECR in whole or in part into the relevant Specification,
all intellectual property in the ECR shall be licensed royalty free, and without confidentiality, under the terms of the "Cable Data Services License
Agreement" ("Contribution Agreement"). CableLabs may disclose the content of this ECR to CableLabs' members and such others as is
necessary for the development of CableLabs' specifications. Questions about the Authors' licensing of intellectual property in this ECR
submission may be directed to legal@cablelabs.com.
1
Notes
1.
The new TLV applies to both US & DS service configuration sets: [24/25]. 35x
2.
The presence of this TLV in the CM config files modifies the basic unit for the Maximum Sustained Rate,
Minimum Reserved Rate and Peak Traffic Rate TLVs. This single TLV changes the basic unit for all 3 TLVs at the
same time.
3.
The supported settings for the new data rate multiplier TLV are as follows: bits/s → Kbits/s → Mbit/s →
Gbit/s, increasing the maximum data rate to the maximum value of 232-1 Gbit/s, sufficient for any systems in the
foreseeable future, without the need to revise multiple TLVs simultaneously.
4.
Additionally, the use of this new TLV will facilitate manual configuration of services, where data rates are
typically expressed in multiples of kbit/s or even Mbit/s, rather than bit/s, eliminating the common source of errors:
very small base unit
5.
There are no changes to the Maximum Traffic Burst parameter
CHANGE DETAILS:
Complete Engineering Change details are contained in the following embedded file:
change details.docx
End of Request
INSTRUCTIONS TO EC AUTHOR
Track Change
Instructions.docx
DPoE_Spec-TestPlan_EC-Form_01-2013.docx
2 of 2
In submitting the Engineering Change Request ("ECR"), the Author(s) [primary author, additional authors, and contributors], individually and as
an authorized representative of the Company, agrees that if CableLabs incorporates this ECR in whole or in part into the relevant Specification,
all intellectual property in the ECR shall be licensed royalty free, and without confidentiality, under the terms of the "Cable Data Services License
Agreement" ("Contribution Agreement"). CableLabs may disclose the content of this ECR to CableLabs' members and such others as is
necessary for the development of CableLabs' specifications. Questions about the Authors' licensing of intellectual property in this ECR
submission may be directed to legal@cablelabs.com.