Re: [CCAMP] TR: New Version Notification fordraft-peloso-ccamp-wson-ospf-oeo-03.txt

[Greg Bernstein <[e-mail]>]

Hi Cyril, yes there are a lot of optical modulation types out there.  So 
this sounds plausible.  However the essence of the solution to the issue 
of a large number of regenerator types in 
draft-peloso-ccamp-wson-ospf-oeo-03.txt seems to only require a slight 
change to the WSON specific encoding draft and not changes to all five 
current working group documents.  Hence, if the authors can rewrite the 
encoding solution in a form that makes minimal changes to the existing 
WSON specific encoding drafts and no unnecessary changes to other drafts 
then I would be happy to incorporate the resulting encoding enhancement.

Cheers

Greg B.


On 6/15/2011 12:35 AM, Margaria, Cyril (NSN - DE/Munich) wrote:
>
> Hi Greg, CCAMPers,
>
> Regarding point (2), using one regen type per OTUk (k in [[1..4]]), 
> and 2 type of laser module per reach makes already 8 type of oeo 
> properties. Adding slightly different hw types (i.e old board with old 
> modulation and a more recent with DP-QPSK) makes an easy 10 types for 
> a big node.
>
> Without going into product families this sounded reasonable (for 
> instance a typical product would indicate supports for 10 and 40g with 
> different modulation, so lets say 2 sub-board type, which makes 6 
> regen type); The introduction of OTU4 and later OTU5 will increase the 
> types of regenerator supported.
>
> The size expansion is indeed related to the number of regenerator 
> type, resource blocks contain connectivity, oeo-feature and how the 
> blocks are grouped.
>
> The other point would indeed clarify the document, the setup of 
> resource pools/blocks is shown in Figure 1, a resource pool 
> aggregating  the connectivity for several resource blocks.
>
> Best regards.
>
> *From:*[e-mail] [mailto:[e-mail]] *On 
> Behalf Of *ext Greg Bernstein
> *Sent:* Monday, June 13, 2011 8:20 PM
> *To:* [e-mail]
> *Subject:* Re: [CCAMP] TR: New Version Notification 
> fordraft-peloso-ccamp-wson-ospf-oeo-03.txt
>
> Hi Pierre and draft authors, can you provide:
> (1) Diagrams of the example switches particularly with respect to the 
> structure of the resource pools/blocks.
> (2) Explanation of why so many different types (not number) of 
> regenerators in an optical node. You site 5 different types for a 
> small node and 10 for a large node. Can you point to a product 
> family?  I would think 0-1 types of regenerators for a small node and 
> at maybe 2 for a large node or nodes that deal with long haul and 
> metro types modulations.
> (3) Can you provide the example encodings such as done in the appendix 
> of the encoding document so we can understand where the expansion is 
> taking place.
>
> It seems that the size expansions is directly related to the number of 
> regenerator types, but hard to tell from this document.  Are there any 
> other WSON interested parties that have a need for so many regenerator 
> types?
>
> Cheers
>
> Greg B.
>
> On 6/10/2011 7:19 AM, PELOSO, PIERRE (PIERRE) wrote:
>
> Hi Ccampers,
>   
> During Prague meeting I was asked to provide a draft detailing the solution we were presenting then concerning OSPF-TE extensions for Wavelength Switched Optical Networks (see point 10 of ccamp minutes).
> Julien, Giovanni, Cyril and I have tackled this work of providing a complete description of the solution with commonalities and deltas from the existing solution held in the following drafts:
>    - draft-ietf-ccamp-rwa-info-11
>    - draft-ietf-ccamp-general-constraint-encode-04
>    - draft-ietf-ccamp-gmpls-general-constraints-ospf-te-00
>    - draft-ietf-ccamp-rwa-wson-encode-11
>    - draft-ietf-ccamp-wson-signal-compatibility-ospf-04
>   
> Feedback from the working group is welcome.
>   
> To trigger this feedback, this draft holds inside section 5 a numerical study on the amount of static and dynamic information to be flooded.
> This study was conducted on various typical WSON nodes and compares the size of the LSAs between the two solutions.
>   
> Regards,
>   
> - Pierre
>   
>   
> _______________________________________________
> CCAMP mailing list
> [e-mail]  <mailto:[e-mail]>
> https://www.ietf.org/mailman/listinfo/ccamp
>
>
>
>
> -- 
> ===================================================
> Dr Greg Bernstein, Grotto Networking [phone]
>   


-- 
===================================================
Dr Greg Bernstein, Grotto Networking [phone]