IPoDWDM

Ok, let's talk about IP over DWDM.

This post includes:

1. Optical channel payload unit (OPU)
2. Optical channel data unit (ODU)
3. Optical channel transport unit (OTU)
4. Optical channel (OCh)
5. Shared Risk Link Group (SRLG)
6. Virtual Transponder (VTXP)
7. FEC-FRR Triggering
8. Optical Parameters - Rx-los-threshold, Wavelength and Transmit-power
9. G.709 Parameters

Long story short:

• integration of DWDM technology into the router
• GMPLS-UNI interface from the router to the DWDM network
• Advanced DWDM control plane - GMPLS/WSON

Supported platforms:

• CRS-1/3
• ASR9K
• 12K
• 7600
• or any platform with tunable WDM optics support

References:

1. IPoDWDM and IP NGN Core Design - deep dive
2. Cisco Live 2010 (Las Vegas) - IPoDWDM: 40G 100G and Beyond (BRKOPT-2115).
3. Cisco Live 2012 (London) - Converged Architecture for IP + Optical, multi-Terabit Routing, Control Plane (BRKSPG-2606) - this one is really good overview
4. White Paper: Converge IP and DWDM Layers in the Core Network
5. ITU-T G.709: Interfaces for the optical transport network
6. Wikipedia: G.709
7. Cisco 7600 ES+ line cards: Configuring IPoDWDM
8. Configuring Dense Wavelength Division Multiplexing Controllers on Cisco IOS XR Software
9. Configuring Dense Wavelength Division Multiplexing Controllers on the Cisco ASR 9000 Series Router
10. Dense Wavelength Division Multiplexing Commands on the Cisco IOS XR Software

SDH/SONET

I just finished "Cisco Self-Study: Building Cisco Metro Optical Networks (METRO)" as a part of my preparation for written exam.

What can I say about this book - less than 1/5 of the whole book is about SONET/SDH/DWDM, the other part is more like marketing material with screenshots of management system, etc.

I am comfortable on this topic, hence can go to next one.

Looking forward to read more about IPoDWDM:

1.2.1. Optical channel payload unit (OPU)
1.2.2. Optical channel data unit (ODU)
1.2.3. Optical channel transport unit (OTU)
1.2.4. Optical channel (OCh)
1.2.5. Shared Risk Link Group (SRLG)
1.2.6. Virtual Transponder (VTXP)
1.2.7. FEC-FRR Triggering
1.2.8. Optical Parameters- Rx-los-threshold, Wavelength and Transmit-power
1.2.9. G.709 Parameters 

Actually, don't see here any IP (except as a payload) :))

Here you can find some Cisco IPoDWDM propaganda (slides).

Converge IP and DWDM Layers in the Core Network (white paper)


UPD: Looks like this is updated version of the METRO book: Building Multiservice Transport Networks