CHAPTER 7
Implementing GMPLS UNI
The Generalized Multiprotocol Label Switching (GMPLS) User Network Interface (UNI) creates a circuit
connection between two clients (UNI-C) of an optical network. This connection is achieved by signaling
exchanges between UNI Client (UNI-C) and UNI Network (UNI-N) nodes, where UNI-C nodes are router
nodes and UNI-N nodes are optical nodes.
A GMPLS overlay model is required to connect packet routers with the optical network in these scenarios:
•
Different groups within a service provider are responsible for managing packet and optical networks.
•
The optical and packet network are managed by different service providers.
•
There is a weak trust model between the entities operating the optical and packet networks.
Feature History for Implementing GMPLS UNI
ModificationRelease
This feature was introduced.Release 4.3.0
•
Prerequisites for Implementing GMPLS UNI, page 371
•
Restrictions for Implementing GMPLS UNI, page 372
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Information About Implementing GMPLS UNI, page 372
•
How to Implement GMPLS UNI, page 374
•
Configuration Examples for GMPLS UNI, page 390
•
Additional References, page 392
Prerequisites for Implementing GMPLS UNI
The following prerequisites are required to implement GMPLS UNI:
Cisco IOS XR MPLS Configuration Guide for the Cisco CRS Router, Release 5.1.x
371
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