nanog mailing list archives
Re: Passive Wave Primer
From: Brandon Martin <lists.nanog () monmotha net>
Date: Tue, 13 Oct 2020 15:11:24 -0400
On 10/13/20 8:27 AM, Rod Beck wrote:
Looking for a tutorial on passive waves. How it works. Pros and cons. .
If you're talking about what I think you are, the term the folks who make the transport gear seem to use is "spectrum" as in you (as service provider) sell your customer some portion of the WDM transport spectrum. It typically comes in 50GHz increments or sometimes 100GHz corresponding to the standard ITU channel system but not always.
To the service provider, this is then an "alien wave" in that they have essentially no control or visibility into it other than light shows up, and they're responsible for getting it to the other end of the path with acceptable path characteristics.
I have yet to find a service provider that is actually willing to sell this even when they have it in their service offering catalog. The difficulties of coordinating everything with the customer are so extreme that it seems to usually make sense to either lease the customer dark fiber or capitalize the transponders needed to carry it as a managed wave on the provider's transport system. Might make sense if you literally want half the spectrum on a long-haul span or something.
-- Brandon Martin
Current thread:
- Passive Wave Primer Rod Beck (Oct 13)
- Re: Passive Wave Primer James Jun (Oct 13)
- Re: Passive Wave Primer TJ Trout (Oct 13)
- RE: Passive Wave Primer Tony Wicks (Oct 13)
- Re: Passive Wave Primer TJ Trout (Oct 13)
- Re: Passive Wave Primer TJ Trout (Oct 13)
- Re: Passive Wave Primer James Jun (Oct 13)
- Re: Passive Wave Primer Brandon Martin (Oct 13)
- RE: Passive Wave Primer Tony Wicks (Oct 13)
- Re: Passive Wave Primer Martijn Schmidt via NANOG (Oct 13)
- Re: Passive Wave Primer Brandon Martin (Oct 13)
- Re: Passive Wave Primer Mike Hammett (Oct 13)
- Re: Passive Wave Primer Brandon Martin (Oct 13)
- Re: Passive Wave Primer Dave Cohen (Oct 13)
- RE: Passive Wave Primer Tony Wicks (Oct 13)