D1.0 Proposed Comment Responses by Clause

Ilango Ganga

Informations

• Publié par: Zaem
• Nombre de lectures: 21
• Langue: English

Extrait

Draft 1.0 Comments IEEE P802.3ba D1.0 40Gb/s and 100Gb/s Ethernet comments Task force Review
Cl SC P L # Cl SC P L #
00 0 1 2 428 01 1.1.3.2 22 30 147
Ganga, Ilango Intel D'Ambrosia, John Force10 Networks
Comment Type Comment Status Comment Type Comment Status
E D T D
Page1, Line 2, 30: Typo, change "Amendement" to "Amendment" add "PPI" as a compatibility interface
Page3, Line 8: Typo, change "conciously" to "consciously"
SuggestedRemedy
page 3, line 10: typo, change consecuively to consecutively
add the following line 37, typo, change to "superseded"
page 3, line 52, two periods, remove one period at end of sentence Parallel Physical Interface (PPI). The PPI is provided as a physical instantation of the
PMD service interface for 40GBASE-SR4 and 100GBASE-SR10 PHYs. While
SuggestedRemedy
conformance with implementation of this interface is not strictly necessary to ensure
As per comment
communication, it is recommended, since it allows maximum flexibility in intermixing PHYs
and DTEs. THe PPI is optional
Proposed Response Response Status W
Proposed Response
Response Status W
PROPOSED ACCEPT.
PROPOSED ACCEPT.
Cl 00 SC 0 P 4 L 29 #
417
Cl 01 SC 1.3 P 22 L 41 # 248
Ganga, Ilango Intel
Trowbridge, Stephen Alcatel-Lucent
Comment Type ER Comment Status D
Comment Type TR Comment Status D
IEEE 802.3az: Replace Clause xx with appropriate clause/annex number used by EEE.
Add reference to ITU-T Recommendation G.694.2 (CWDM grid) as this is now necessary
SuggestedRemedy
for the 40GBASE-LR4 interface
Replace with "This amendment includes changes to IEEE Std 802.3-2008 and adds
SuggestedRemedy
Clause 78."
Add:
Proposed Response Response Status
W
ITU-T Recommendation G.694.2, 2003, Spectral grids for WDM applications: CWDM
PROPOSED ACCEPT.
wavelength grid
Cl SC P L #
01 1.1.3.2 22 22 429 after reference to G.694.1
Ganga, Ilango Intel
Proposed Response Response Status
W
PROPOSED ACCEPT.
Comment Type Comment Status
E D
"CGMII is is": delete one "is"
SuggestedRemedy
As per comment
Proposed Response Response Status
W
PROPOSED ACCEPT.
TYPE: TR/technical required ER/editorial required GR/general required T/technical E/editorial G/general
Cl 01 Page 1 of 152
COMMENT STATUS: D/dispatched A/accepted R/rejected RESPONSE STATUS: O/open W/written C/closed U/unsatisfied Z/withdrawn
11/7/2008 11:19:47 AM
SC 1.3
SORT ORDER: Clause, Subclause, page, line Draft 1.0 Comments IEEE P802.3ba D1.0 40Gb/s and 100Gb/s Ethernet comments Task force Review
Cl SC P L # Cl SC P L #
01 1.3 22 45 352 01 1.4 23 1 11
Dawe, Piers Avago Technologies Anslow, Peter Nortel Networks
Comment Type Comment Status Comment Type Comment Status
T D T D
Another reference for the list (not sure if it's a normative or informative reference) The definition of 40GBASE-LR4 is missing
SuggestedRemedy SuggestedRemedy
Add G.709 Add the definition as:
"40GBASE-LR4: IEEE 802.3 Physical Layer specification for 40 Gb/s using 40GBASE-R
Proposed Response Response Status
W
encoding over four WDM lanes on single mode fiber with long reach. (See IEEE 802.3,
PROPOSED ACCEPT IN PRINCIPLE.
Clause 87.)"
Proposed Response
Response Status W
G.709 is the standard for OTN
PROPOSED ACCEPT.
Add the following reference to Annex A (informative references):
Cl 01 SC 1.4 P 23 L 20 #
ITU-T G.709 Interfaces for optical transport network (OTN) 9
Anslow, Peter Nortel Networks
Cl 01 SC 1.3 P 22 L 52 # 351
Comment Type T Comment Status D
Dawe, Piers Avago Technologies
The definition of 40GBASE-SR4 is "IEEE 802.3 Physical Layer specification for 40 Gb/s
Comment Type T Comment Status D
using 40GBASE-R encoding over four lanes of, short reach, multi mode fiber." This
As we are not doing the maintenance work to remove all references to ANSI/EIA/TIA-455- implies that the fibre alone determines the reach.
127-1991, we can't do this by a 'change'
SuggestedRemedy
SuggestedRemedy
Re-word as: "40GBASE-SR4: IEEE 802.3 Physical Layer specification for 40 Gb/s using
In the draft replace
40GBASE-R encoding over four lanes of multi mode fiber with short reach. (See IEEE
'Change the following reference... Laser Diodes.'
802.3, Clause 86.)"
with another entry for the 'insert' list,
TIA-455-127-A-2006, FOTP-127-A-Basic Spectral Characterization of Laser Diodes. Similarly re-word 100GBASE-SR10 definition to:
Proposed Response Response Status
W
"100GBASE-SR10: IEEE 802.3 Physical Layer specification for 100 Gb/s using
PROPOSED REJECT.
100GR encoding over ten lanes of multi mode fiber with short reach. (See IEEE
802.3, Clause 86.)"
Section 1.4 recommends the user to refer to most recent editions where applicable. If the
Proposed Response
Response Status W
latest version supersedes the older version that is being referenced in 802.3ba, then it may
be ok to change this reference.
PROPOSED ACCEPT.

Discuss this suggestion in the task force
See also comment # 354
TYPE: TR/technical required ER/editorial required GR/general required T/technical E/editorial G/general
Cl 01 Page 2 of 152
COMMENT STATUS: D/dispatched A/accepted R/rejected RESPONSE STATUS: O/open W/written C/closed U/unsatisfied Z/withdrawn
11/7/2008 11:20:06 AM
SC 1.4
SORT ORDER: Clause, Subclause, page, line Draft 1.0 Comments IEEE P802.3ba D1.0 40Gb/s and 100Gb/s Ethernet comments Task force Review
Cl SC P L # Cl SC P L #
01 1.4 23 22 607 01 1.4 23 44 148
Ganga, Ilango Intel D'Ambrosia, John Force10 Networks
Comment Type Comment Status Comment Type Comment Status
T D T D
Add 40GBASE-LR4 to the definitions list in 1.4 Parallel Physical Interface (PPI) is not defined.
SuggestedRemedy SuggestedRemedy
Insert the following text at line 22: Add
Parallel Physical Interface (PPI) - The interface between the Physical Medium Attachment
1.4.x 40GBASE-LR4: IEEE 802.3 Physical Layer specification for 40 Gb/s using 40GBASE- (PMA) sublayer and the Physical Medium Dependent (PMD) sublayer. (See IEEE 802.3,
R encoding over four WDM lanes, long reach, single mode fiber. (See IEEE 802.3, Clause Clause 86)
87.)
Proposed Response
Response Status W
Proposed Response Response Status W
PROPOSED ACCEPT IN PRINCIPLE.
PROPOSED ACCEPT IN PRINCIPLE.
Parallel Physical Interface (PPI) - The interface between the Physical Medium Attachment
See also comment #11 for remedy (PMA) sublayer and the Physical Medium Dependent (PMD) sublayer for 40GBASE-SR4
and 100GBASE-SR10 PHYs. (See IEEE 802.3, Clause 86)
Cl 01 SC 1.4 P 23 L 35 # 10
Cl 01 SC 1.4 P 23 L 44 #
12
Anslow, Peter Nortel Networks
Anslow, Peter Nortel Networks
Comment Type T Comment Status D
Comment Type E Comment Status D
The definition of 100GBASE-ER4 "IEEE 802.3 Physical Layer specification for 100 Gb/s
using 100GBASE-R encoding over four WDM lanes, extended long reach, single mode The definition of virtual lanes is awkwardly worded:
fiber." This implies that the fibre alone determines the reach. "Virtual Lane: In 40GBASE-R and 100GBASE-R, the PCS distributes encoded data to
multiple logical lanes, these logical lanes are called virtual lanes. They are called virtual
SuggestedRemedy
lanes since one or more of PCS lanes can be multiplexed and carried on a physical lane
Re-word as: "100GBASE-ER4: IEEE 802.3 Physical Layer specification for 100 Gb/s using
together at the PMA interface."
100GBASE-R encoding over four WDM lanes on single mode fiber with extended reach.
SuggestedRemedy
(See IEEE 802.3, Clause 88.)"
Re-word as:
Similarly re-word 100GBASE-LR4 definition to: "Virtual Lane: In 40GBASE-R and 100GBASE-R, the PCS distributes encoded data to
multiple logical lanes, these logical lanes are called virtual lanes since one or more of the
"100GBASE-LR4: IEEE 802.3 Physical Layer specification for 100 Gb/s using 100GBASE- PCS lanes can be multiplexed and carried on a physical lane together at the PMA
R encoding over four WDM lanes on single mode fiber with long reach. (See IEEE 802.3, interface."
Clause 88.)"
Proposed Response
Response Status W
Proposed Response
Response Status W
PROPOSED ACCEPT.
PROPOSED ACCEPT.
TYPE: TR/technical required ER/editorial required GR/general required T/technical E/editorial G/general
Cl 01 Page 3 of 152
COMMENT STATUS: D/dispatched A/accepted R/rejected RESPONSE STATUS: O/open W/written C/closed U/unsatisfied Z/withdrawn
11/7/2008 11:20:06 AM
SC 1.4
SORT ORDER: Clause, Subclause, page, line Draft 1.0 Comments IEEE P802.3ba D1.0 40Gb/s and 100Gb/s Ethernet comments Task force Review
Cl SC P L # Cl SC P L #
01 1.4 23 50 13 04 4.4.2 25 17 246
Anslow, Peter Nortel Networks Trowbridge, Stephen Alcatel-Lucent
Comment Type Comment Status Comment Type Comment Status
E D T D
The modified definition for "1.4.311 RMS spectral width" is shown in