1 common constraint information extension to gmpls route for wdm switch optical network...

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1 Common Constraint Information Extension to GMPLS Route for WDM Switch Optical Network draft-kang-ccamp-wdm-switch-info-00.txt Zhihong Kang [email protected] ZhenYu Wang [email protected] Feng Gao [email protected]

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Page 1: 1 Common Constraint Information Extension to GMPLS Route for WDM Switch Optical Network draft-kang-ccamp-wdm-switch-info-00.txt Zhihong Kang kang.zhihong@zte.com.cnkang.zhihong@zte.com.cn

1

Common Constraint Information Extension to GMPLS Route for WDM Switch Optical

Network

draft-kang-ccamp-wdm-switch-info-00.txt

Zhihong Kang [email protected]

ZhenYu Wang [email protected]

Feng Gao [email protected]

Page 2: 1 Common Constraint Information Extension to GMPLS Route for WDM Switch Optical Network draft-kang-ccamp-wdm-switch-info-00.txt Zhihong Kang kang.zhihong@zte.com.cnkang.zhihong@zte.com.cn

2

Summary

Contains information model for path computation

Focus on 3-layer constraint characteristics WDM link layer WDM optical channel layer (Wavelength) Reachability to tributary side

Page 3: 1 Common Constraint Information Extension to GMPLS Route for WDM Switch Optical Network draft-kang-ccamp-wdm-switch-info-00.txt Zhihong Kang kang.zhihong@zte.com.cnkang.zhihong@zte.com.cn

3

WDM Link Layer Constraint Case

WSS

WSS

Drop

Drop

Add

Add

Drop

Add

Add

Drop

WSS

WSS

WSS : Wavelength Switch Slection

Link 1 Link 2

Link 3

Link 4

3-1 3-2 3-4

1-3

1-2

1-4

4-14-24-3

2-1

2-4

2-3

1- 3: Represent the inner connectivity from link 1 to link 3

2- 1:Represent the inner connectivity from link 2 to link 1

.

.

.Etc.

Switch With No Block In the WDM Link Layer

WSS

WSS

Drop

Drop

Add

Add

Drop

Add

Add

Drop

WSS

WSS

WSS : Wavelength Switch Slection

Link 1 Link 2

Link 3

Link 4

3-1 3-2 3-4

1-3

1-2

1-4

4-14-24-3

2-1

2-4

2-3

1- 3: Represent the inner connectivity from link 1 to link 3

2- 1:Represent the inner connectivity from link 2 to link 1

.

.

.Etc.

Switch With No Block In the WDM Link Layer

Page 4: 1 Common Constraint Information Extension to GMPLS Route for WDM Switch Optical Network draft-kang-ccamp-wdm-switch-info-00.txt Zhihong Kang kang.zhihong@zte.com.cnkang.zhihong@zte.com.cn

4

WDM Optical Channel Layer Constraint

OADM OADM OADM

Wavelength must keep consistent along the light path without O -E-O Switch

Page 5: 1 Common Constraint Information Extension to GMPLS Route for WDM Switch Optical Network draft-kang-ccamp-wdm-switch-info-00.txt Zhihong Kang kang.zhihong@zte.com.cnkang.zhihong@zte.com.cn

5

WDM Optical Channel Layer Constraint (Cont.)

Drop

Add

Add

Drop

ELECTRONIC

MATRIX

ELECTRONIC

MATRIX

_1_2_3_4

_5_6_7_8

Lambda Blocked Via Inner Light Path

O/E

O/E

O/E

O/E

E/O

E/O

E/O

E/O

E/O

E/O

E/O

E/OO/E

O/E

O/E

O/E

Available Lambdas Available Lambdas

O/E: Optical Electronic Conversion

E/O: Electronic Optical Conversion

Page 6: 1 Common Constraint Information Extension to GMPLS Route for WDM Switch Optical Network draft-kang-ccamp-wdm-switch-info-00.txt Zhihong Kang kang.zhihong@zte.com.cnkang.zhihong@zte.com.cn

6

Reachable Tributary Sides Constraint

Drop

Drop

Drop

Drop

Drop

Drop

Drop

Drop

Add

Add

Add

Add

Add

Add

. . . . .

. . . . .

BLOCK

Page 7: 1 Common Constraint Information Extension to GMPLS Route for WDM Switch Optical Network draft-kang-ccamp-wdm-switch-info-00.txt Zhihong Kang kang.zhihong@zte.com.cnkang.zhihong@zte.com.cn

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WDM Link Extension Info

Page 8: 1 Common Constraint Information Extension to GMPLS Route for WDM Switch Optical Network draft-kang-ccamp-wdm-switch-info-00.txt Zhihong Kang kang.zhihong@zte.com.cnkang.zhihong@zte.com.cn

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WDM Link Extension Info (Cont.)0 1 2 3

0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

|Grid | C.S |S| Reserved | Num Wavelengths |

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

| N1 For Start Center Frequency |Lambda Group Id| State |

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

| N2 |Lambda Group Id| State |

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

| ... |

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

|Nn (Highest frequency channels)|Lambda Group Id| State |

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

Page 9: 1 Common Constraint Information Extension to GMPLS Route for WDM Switch Optical Network draft-kang-ccamp-wdm-switch-info-00.txt Zhihong Kang kang.zhihong@zte.com.cnkang.zhihong@zte.com.cn

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WDM Link Extension Info (Cont.)0 1 2 3

0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

| Num Reachable Edge (Tributary sides) Links |

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

| Edge Link Identifier1 |

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

| Num Suggested Lambda For Edge Link Identifier1 |

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

| Suggested Lambda #1 | Suggested Lambda #2 |

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

| ... | Suggested Lambda #N |

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

| ... |

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

| Edge Link IdentifierN |

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

| Num Suggested Lambda For Edge Link IdentifierN |

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

| Suggested Lambda #1 | Suggested Lambda #2 |

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

| ... | Suggested Lambda #N |

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

Page 10: 1 Common Constraint Information Extension to GMPLS Route for WDM Switch Optical Network draft-kang-ccamp-wdm-switch-info-00.txt Zhihong Kang kang.zhihong@zte.com.cnkang.zhihong@zte.com.cn

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Next Step

Get feedback to improve the draft

Continue to extend switch capability Info model

Consider influence of tunable laser information on switch capability

Build switch capability Info model based on port with tunable laser transmitter or fixed wavelength manufactured laser