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[RPRWG] RPR and WDM topology discovery

Title: RPR and WDM topology discovery

In the context of an DWDM RPR implementing optical bypass, would there be a requirement for a dedicated supervisory channel for topology discovery (i.e. if both neighbors of an RPR node add/drop a different wavelength then there is no in-band mechanism for detecting physical adjacencies) - or will RPR only connect as a client to an existing DWDM network and rely on whatever existing transport mechanism is in place ?

Regards,

Vish Nandlall

Nortel Networks

ESN 393-1350
External (613) 763-1350
vnandlal@xxxxxxxxxxxxxxxxxx