Dwdm Transponder Integration; Gmpls Benefits; Gmpls Support - Cisco CRS Configuration Manual

DWDM Transponder Integration

Configure the Ignore IS-IS Overload Bit Setting in MPLS-TE: Example, on page 344
DWDM Transponder Integration
A GMPLS UNI based solution preserves all the advantages of the integration of the DWDM transponder into
the router blade. These advantages include:
• improved CAPEX and OPEX models
• component, space and power savings
• improved IP availability through pro-active protection.

GMPLS Benefits

GMPLS bridges the IP and photonic layers, thereby making possible interoperable and scalable parallel growth
in the IP and photonic dimensions.
This allows for rapid service deployment and operational efficiencies, as well as for increased revenue
opportunities. A smooth transition becomes possible from a traditional segregated transport and service overlay
model to a more unified peer model.
By streamlining support for multiplexing and switching in a hierarchical fashion, and by utilizing the flexible
intelligence of MPLS-TE, optical switching GMPLS becomes very helpful for service providers wanting to
manage large volumes of traffic in a cost-efficient manner.

GMPLS Support

GMPLS-TE provides support for:
• Open Shortest Path First (OSPF) for bidirectional TE tunnel
• Frame, lambda, and port (fiber) labels
• Numbered or Unnumbered links
• OSPF extensions–Route computation with optical constraints
• RSVP extensions–Graceful Restart
• Graceful deletion
• LSP hierarchy
• Peer model
• Border model Control plane separation
• Interarea or AS-Verbatim
• BGP4 or MPLS
• Restoration–Dynamic path computation
• Control channel manager
• Link summary
Cisco IOS XR MPLS Configuration Guide for the Cisco CRS Router, Release 5.1.x
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Implementing MPLS Traffic Engineering