Transcript PPT Version

draft-ashwood-ccamp-gmplsconstraint-reqts-00.txt
Don Fedyk [email protected]
Peter Ashwood-Smith [email protected]
Vik Saxena [email protected]
Problem
• GMPLS for pure photonic network is
undefined
• Photonic control plane is and has been a
little too complicated to standardize
• Can we support a GMPLS peered
interface?
Requirements
• Management of complete paths IP and
photonic
• Path Computation across IP and photonic
plane
– Requires GMPLS Routing, Topology, path
computation and signaling
– Being able to reconfigure bandwidth and IP
traffic together (GMPLS path management).
– Support of Blocking Constraints
Staying within the laws of physics and economics 
Models
• Draft explores three Models
– Network abstraction (cloud)
– Virtual Node abstraction
– No abstraction
• We currently favor Nodal abstraction
Abstraction
PHYSICAL REPRESENTATION
Y
Optical
Domain C
X
Optical
Domain A
Z
Optical
Domain D
Optical
Domain B
LOGICAL REPRESENTATION
C
Y
X
x1
a5
x2
a4
A
a1
a2
a3
y1
y2
c4
c5
c6
c3
c1
c2
b7
b6
b1
b2
b3
b5
b4
B
d4
d3
d5
d2
d1
d6
z1
z2
Z
D
- Each physical Domain is logically represented as a GLSR. GLSR does its
sub-domain computation based on its own physics models.
Why CCAMP?
• Customers want IP Standards based
solution
• Initial Requirements draft to solicit interest
• Would like to standardize extensions to
GMPLS signaling and routing for photonic
networks
• Goal to work towards a WG Draft