The MPLS WG Archive

["Berthold, Joseph" <Berthold@ciena.com>]

It should not matter what technology an OXC product uses to support wavelength conversion. When an all optical technology is the best economic and technological choice it will be used. 

Currently wavelength conversion is accomplished by O/E/O conversion, and includes 3R regeneration as an extra bonus. Not all OXCs support wavelength conversion, but the ones that do remove most of the transmission impairments. 

When we have all-optical wavelength conversion we will see if it comes with a 3R function that works as well as O/E/O. If it dosen't we will need to keep track of transmission impairments in making the routing decision, as we need to do today for all optical OXCs.

Joe

> ----------
> From: 	Shen Gangxiang
> Sent: 	Thursday, March 23, 2000 9:50 PM
> To: 	'Yangguang Xu'; mpls@UU.NET
> Subject: 	RE: Comments on draft-ip-optical-framework-00.txt
> 
> Hi,
> 
> To my knowledge, currently there seems no OXC product (commercially
> announce) supporting all-optical wavelength conversion. The all-optical
> wavelength converter is still costly and also not very mature. 
> 
> 
> Gangxiang
> 
> -----Original Message-----
> From: Yangguang Xu [mailto:xuyg@lucent.com]
> Sent: Thursday, March 23, 2000 11:32 PM
> To: mpls@UU.NET
> Subject: Re: Comments on draft-ip-optical-framework-00.txt
> 
> 
> 
> There have been many discussions about wavelength conversion. And we all
> agree
> it is good. Can anyone tell me which OXC product (commercially announced)
> doesn't support wavelength conversion?
> 
> Yangguang
>