1. 77th IETF – Anaheim, California, March 2010
Routing and Wavelength Assignment Information Encoding for Wavelength Switched Optical Networks
draft-ietf-ccamp-rwa-wson-encode-04.txt
Greg Bernstein Grotto Networking
Young Lee
Huawei
77th IETF – Anaheim, California, March 2010

2. Authors/Contributors
Greg Bernstein (Grotto Networking)
Diego Caviglia (Ericsson)
Ander Gavler (Acreo AB)
Jianrui (Rebecca) Han (Huawei)
Young Lee (Huawei)
Dan Li (Huawei)
Wataru Imajuku (NTT)
Jonas Martensson (Acreo AB)
Itaru Nishioka (NEC Corp.)
77th IETF – Anaheim, California, March 2010

3. Encoding RWA Info in WSON
Scope is the WSON specific aspects of the RWA WSON Framework and Info Model drafts. (scope reduction)
This document provides efficient, protocol-agnostic encodings for the WSON specific information elements. It is intended that protocol-specific documents will reference this memo to describe how information is carried for specific uses.
77th IETF – Anaheim, California, March 2010

4. Changes from Encoding 03.txt
Removed encodings for general concepts to [Gen-Encode].
Generalized & Simplified Resource Pool
Use “Resource block” terminology to refer to either wavelength converters, regenerators, or other processing
“Resource blocks” can contain multiple identical resources  better for encoding OEO switches, regular regenerators.
Added in WSON signal compatibility and processing capability information encodings from ietf-ccamp-signal-compatibility-ospf-00.
Resource block info sub-TLV
Related sub-sub-TLVs: Input Modulation, Input FEC, Input Bit Rate, Input client signal types, Processing Capabilities, Output modulation types, Output FEC types.
77th IETF – Anaheim, California, March 2010

5. Resource Pool Information Model
<Node_Info> ::= <Node_ID>[Other GMPLS sub-TLVs] [<ResourcePool>][<RBPoolState>]
where <ResourcePool> ::= <ResourceBlockInfo>... [<ResourceBlockAccessibility>...] [<ResourceWaveConstraints>...]
77th IETF – Anaheim, California, March 2010

6. Resource Pool Encoding
General Model
(c) “Half Clear”
(a) Shared by node
(b) Shared by port
(d) “Shared by Wavelength”, W=5, M=3, p=2
77th IETF – Anaheim, California, March 2010

7. Resource Pool Encoding (cont)
(e) Shared with Local
(h) OEO switch with DWDM optics
(f) Shared with Local
(i) Regenerators on a DWDM line
(g) Shared with Local
77th IETF – Anaheim, California, March 2010

8. Compatibility Encoding
Applied to the “Resource Block sub-TLV”
Resource block info sub-TLV
Addresses the compatibility and capabilities of the resources in a block.
sub-sub-TLVs: Extracted from OSPF WSON compatibility draft.
Resource Block Set Field
Input Modulation
Input FEC
Input Bit Rate
Input client signal types
Processing Capabilities
Output modulation types
Output FEC types.
77th IETF – Anaheim, California, March 2010

9. 77th IETF – Anaheim, California, March 2010
Next Steps
Polish, refine, prepare for last call
77th IETF – Anaheim, California, March 2010