Re: [CCAMP] Webex meeting invitation: Optical Impairments - occurrence of week 40

[Italo Busi <[e-mail]>]

Hi Gert,

The LLCL does not report the link between the OT and the line but it is intended to abstract the TE attributes of the “add/drop path” within the ROADM, in case the ROADM (including the OT) is modelled as a single TE node

My understanding is that during the call we have agreed that irrespectively on whether the ROADM architecture is integrated or disaggregated, the controller can abstract the ROADM as a single TE node and to focus, in the first phase, to the cases where the OT and the add/drop box are under the same controller’s and the link between them is not exposed

I agree with you that any solution that allows exposing the link between the OT and the add/drop box as an inter-domain link could be used also to expose this link as an intra-domain link. The difference between intra-domain and inter-domain links is just a set of attributes (e.g., the plug-id) which are used for multi-domain topology discovery.
In this case, the ROADM cannot be exposed as a single TE node but at least as two TE nodes with one or more TE links in between.
However, exposing these TE links as intra-domain, although possible, will not be mandatory and the solution identified in the first phase will be still applicable if the intra-domain link between the OT and the add/drop box is not exposed

In other words, the scenario where the link between the OT and the add/drop box is exposed as a TE link can be addressed in a second phase as an extensions to the solution developed in the first phase

My 2 cents

Italo

Italo Busi
Principal Optical Transport Network Research Engineer
Huawei Technologies Co., Ltd.
Tel : [phone]
Email : [e-mail]
[cid:image003.png@01D57EF2.7C4EC4A0]

This e-mail and its attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it!

From: Gert Grammel [mailto:[e-mail]]
Sent: venerdì 4 ottobre 2019 19:43
To: Belotti, Sergio (Nokia - IT/Vimercate) <[e-mail]>; Gabriele Maria Galimberti (ggalimbe) <[e-mail]>; Daniele Ceccarelli <daniele.ceccarelli=[e-mail]>; [e-mail]
Cc: [e-mail]; MEURIC Julien TGI/OLN <[e-mail]>; Italo Busi <[e-mail]>; Beller, Dieter (Nokia - DE/Stuttgart) <[e-mail]>; Griseri, Enrico (Nokia - IT/Vimercate) <[e-mail]>
Subject: Re: [CCAMP] Webex meeting invitation: Optical Impairments - occurrence of week 40

Sergio, Italo,

Thank you for the summary. Two clarifications:
-          In the report it is stated that the LLCL is a Link between OT and the line (crossing ADD-DROP block) and is a candidate to be used to attach the impairment parameters on this. However further down it is said a domain controller would not expose it (which basically creates an aggregated model). Since the preference was for a disaggregated model, there has been no final conclusion on what exactly to expose and what not.
-          The group also discussed that add/drop would only need to be exposed in case of a domain Boundary. My intervention aimed to clarify that this there are other use cases beyond domain boundaries that benefit from exposing such link between Add/Drop and OT. Given the preference expressed by the group for a disaggregated model, it seems pre-mature to state “In the first phase, we will consider the case where it is not exposed.”

Gert



From: "Belotti, Sergio (Nokia - IT/Vimercate)" <[e-mail]<mailto:[e-mail]>>
Date: Friday, October 4, 2019 at 18:16
To: Gabriele Galimberti <[e-mail]<mailto:[e-mail]>>, Daniele Ceccarelli <daniele.ceccarelli=[e-mail]<mailto:daniele.ceccarelli=[e-mail]>>, CCAMP <[e-mail]<mailto:[e-mail]>>
Cc: LE ROUZIC Esther OLNC/OLN <[e-mail]<mailto:[e-mail]>>, Julien Meuric <[e-mail]<mailto:[e-mail]>>, Italo Busi <[e-mail]<mailto:[e-mail]>>, Gert Grammel <[e-mail]<mailto:[e-mail]>>, Dieter Beller <[e-mail]<mailto:[e-mail]>>, "Griseri, Enrico (Nokia - IT/Vimercate)" <[e-mail]<mailto:[e-mail]>>
Subject: RE: [CCAMP] Webex meeting invitation: Optical Impairments - occurrence of week 40

Hi all,

Related to the meeting on Wednesday October 2nd ,
Italo and myself put together some notes (attached), in the view to have common understanding of the topics been touched and so progressing of discussion for next meeting.

Please look at the attached word and provide your comments if any to complete the summary.

Thanks
Italo and Sergio


Sergio Belotti
Senior System Engineer and Standardization Architect
IP/Optical Networks, Optics BU
Nokia
M: [phone]
Via Energy Park, 20871 Vimercate (MB) , Italy
[e-mail]<mailto:[e-mail]>



From: CCAMP <[e-mail]<mailto:[e-mail]>> On Behalf Of Gabriele Maria Galimberti (ggalimbe)
Sent: Monday, September 30, 2019 3:12 PM
To: Daniele Ceccarelli <daniele.ceccarelli=[e-mail]<mailto:daniele.ceccarelli=[e-mail]>>; [e-mail]<mailto:[e-mail]>
Subject: Re: [CCAMP] Webex meeting invitation: Optical Impairments - occurrence of week 40

Thanks a lot Daniele,

Best regards,

Gabriele

[cid:image004.png@01D57EE8.71E76440]


Gabriele Galimberti
Principal Engineer
Cisco Photonics Srl
Italy

via S.Maria Molgora, 48 C
20871 - Vimercate (MB)
Italy
www.cisco.com/global/IT/<http://www.cisco.com/global/IT/>

[e-mail]<mailto:[e-mail]>
Phone :[phone]
Mobile :[phone]
Fax :[phone]













From: CCAMP <[e-mail]<mailto:[e-mail]>> on behalf of Daniele Ceccarelli <daniele.ceccarelli=[e-mail]<mailto:daniele.ceccarelli=[e-mail]>>
Date: Monday, 30 September 2019 at 14:08
To: "[e-mail]<mailto:[e-mail]>" <[e-mail]<mailto:[e-mail]>>
Subject: Re: [CCAMP] Webex meeting invitation: Optical Impairments - occurrence of week 40

Hi WG,

ONLY FOR THIS WEEK the Optical Impairments call we be moved to Wednesday 2nd instead of usual Thursday slot.
Starting from next week we’ll be back to Thursday as usual.

Thanks,

Daniele

From: CCAMP <[e-mail]<mailto:[e-mail]>> On Behalf Of CCAMP Working Group
Sent: den 30 september 2019 14:05
To: [e-mail]<mailto:[e-mail]>
Subject: [CCAMP] Webex meeting invitation: Optical Impairments - occurrence of week 40



CCAMP Working Group invites you to join this Webex meeting.





Meeting number (access code): 644 305 032


Meeting password: tyqTNm55





Wednesday, October 2, 2019

8:00 am  |  (UTC-05:00) Eastern Time (US & Canada)  |  1 hr





Join<https://ietf.webex.com/ietf/j.php?MTID=m05017815004a8c36f611a6df37c3a58f>






Join by phone

Tap to call in from a mobile device (attendees only)

1-650-479-3208<tel:%2B1-650-479-3208,,*01*644305032%23%23*01*> Call-in toll number (US/Canada)

1-877-668-4493<tel:[phone],,*01*644305032%23%23*01*> Call-in toll free number (US/Canada)

Global call-in numbers<https://ietf.webex.com/ietf/globalcallin.php?MTID=mc116499fdee8a2248ced73570ee727c8>  |  Toll-free calling restrictions<https://www.webex.com/pdf/tollfree_restrictions.pdf>






Need help? Go to http://help..webex.com<http://help.webex.com>