GMPLS Network Management:
Challenges and Solutions
Thomas D. Nadeau
Technical Leader© 2003 Cisco Systems, Inc. All rights reserved.

1

Fundamental Question

Why is network management soimportant to the success of
GMPLS/UCP?

© 2003 Cisco Systems, Inc. All rights reserved.

2

Agenda• Motivations and Challenges• Solutions• Questions• Closing Remarks© 2003 Cisco Systems, Inc. All rights reserved.

3Motivations
and Challenges

Presentation_ID© 2003 Cisco Systems, Inc. All rights reserved.

4Legacy Data Reference Architecture Today
Separate Layers/Separate Networks
CPE

Aggregation

SDH/SONETDistribution

SDH/SONETCore

OpticalATM/FR

ATM/FRPSTN
Mod / TAPSTNPoP Services
SDH/SONETATM

HFC

channelised / LL

SDH/SONETATM

Optical
IP/MPLSInternetSDH
Fibre Plant© 2003 Cisco Systems, Inc. All rights reserved.

Optical5Next Generation Network Goals
Systems Approach to Solutions
OSS
VoiceOSS
OpticalVoice

FR, ATM

Voice

OSS
OSS

G/MPLS
FR, ATMOSSOSSFR, ATM

IP
OSS

Optical• Operational Efficiencies
Increase management automation and availability using asingle/unified and evolutionary approach that is standards-based.
Manage and consolidate traditional and emerging disparate
networks networks as one.

• New Services Provisioning
Enable competitive differentiation and customer retention throughprofitable and value-added bundled services.
© 2003 Cisco Systems, Inc. All rights reserved.

6

What the Industry is Looking for
Next Generation Optical Control Plane• Protocols to control and consolidate transport networks– Leverage new advancements in optical technology– Data optimized architectures• handle unpredictable data traffic• economical– Improved Management Functions•Fast/automated/policy-driven Provisioning•Consistent Trouble-shooting.
• Protocols to increase providers revenue & profit– New differentiated service and business models– Simplified, automated operational processes & systems– Future-proofed, open architectures in the tradition of theInternet© 2003 Cisco Systems, Inc. All rights reserved.

7

NGN IP + OpticalArchitecture
CPE

Aggregation

Distribution

Core

ATM/FRPSTN
Mod / TAPSTN

PoP Services

802.11dWDM

HFC

Ethernet / channelised / LL

dWDM

Optical

IP/MPLSInternet

GMPLS
Multi-Service optical transport© 2003 Cisco Systems, Inc. All rights reserved.

8

Solutions
The Unified Control
Plane and GMPLS

Presentation_ID© 2003 Cisco Systems, Inc. All rights reserved.

9Unified Control Plane (UCP)
General Definition
Control Plane Extends MPLS-TE OSPF-TE & IS-IS routing
 RSVP-TE for signaling Adds in-band & out-of-band
control channel support LMP- Link Management Protocol

Network and Service Management
Internetworking Operating
SystemServices

Unified Control Plane
Packet Labels/VPI VCIPackets/Cells
λ Labels

Control Plane
based on IP routing

SONET/SDH
Wavelength Routing
DWDM Transport

Mgmt & Control Address
OTN specific needs
 Physical vs. Logical

Forwarding Plane Transport
requirements (e.g.,P&R, Explicit I/Fs,etc.)

IPATM

Forwarding Plane Extends
MPLS Labels
 TDM SDH/SONET DWDM
 Fiber

UCP protocols are often referred to as
Generalized Multi-Protocol Label
Switching (GMPLS)
OpticalBased on GMPLSTechnology© 2003 Cisco Systems, Inc. All rights reserved.

10

UCP/GMPLS Keys to Success
Automatic and Interoperable
Optical UCP/GMPLS can only be successful if..
•Management systems migrate fromproprietary network circuit provisioning
to automated provisioning•

Use distributed intelligence (for scale)•Standards-based protocols (signaling,routing, link management, provisioning,…) that are interoperable© 2003 Cisco Systems, Inc. All rights reserved.

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UCP
Real Customer Benefits• Fast Provisioning• Enables end-to-end circuit setup without SP intervention•reduce provisioning times• Enhanced Scalability• Network level: Support for thousands of nodes, links andcircuits per inter-connected network• Lightweight EMS: Move from centralized provisioning to
distributed, node-level provisioning using signaling (e.g.:GMPLS)• Interoperable vendor implementations• Reduces EMS/NMS integration / interoperability issues/costs• Improves provisioning/trouble-shooting capabilities/times• Basic Bandwidth on Demand (BoD) capabilities aspolicy & billing standards mature© 2003 Cisco Systems, Inc. All rights reserved.

12

UCP
Real Customer Benefits (Continued)• OPEX savings via service provisioning reduction by
due to design function elimination• CAPEX savings due to less RMA (resourcemanagement & accounting) reducing engineering
headcount; increased flow-through-provisioning
services• Capital conservation - Improve utilization of network
capital investment• reduced RMAs defers capital expenditures that can bediverted to support that many more services before investing• Enabling direct customer access reduces operations
staff for all available capabilities© 2003 Cisco Systems, Inc. All rights reserved.

13

UCP
Real Customer Benefits (Continued (2))• Enables new transport services•Shortened provisioning times•Destination selection (change my A-Z connection to A-Z’)•Bandwidth on demand (activate A and connect it to Z)•Protection classes (Grades of Service – SLA with meshsupport)• Reduce operations cost
•Reduced OSS intervention (OPEX reduction) as network is
self inventorying, routing, & provisioning etc ..
• Multi-vendor Interoperability• Enables non-transport & legacy NEs to signal for circuits aswell• Reduced operational costs means quicker ROI© 2003 Cisco Systems, Inc. All rights reserved.

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UCP/GMPLS Keys to Success• Develop end-to-end, open architecture(OIF/IETF/ITU) by driving standards in thisarea.

• Integrate IP and Optical products via control
plane signaling over optical and Ethernet
interfaces to deliver new services and enhanceexisting ones.

• Migrate/extend existing MPLS-based NM/OAM
tools/techniques into the GMPLS space.

© 2003 Cisco Systems, Inc. All rights reserved.

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UCP/GMPLS Management Needs anEvolutionary Approach• Drive intelligence (topology, circuit inventory
and link characteristics) into the network
elements with efficient updates to EMS.
• Retain current network circuit provisioning
capabilities (topology, discovery, enhanced
circuit management and operations) for
backward compatibility• Single integrated and interoperable embedded
management solution that addresses all FCAPSareas.
© 2003 Cisco Systems, Inc. All rights reserved.

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UCP/GMPLS Management Needs anEvolutionary Approach (2)• Deliver Obvious Benefits•Need an embedded management strategy that ties things
together for all FCAPS areas.

•Must extend existing tools/techniques to preserve
investment.

•Allows GMPLS to leverage applications designed forMPLS.

• Deliver New Benefits• New service features not possible today!
•Optical VPN•Bandwidth wholesaling• Reduce costs, increase revenues, address scale ofgrowing networks© 2003 Cisco Systems, Inc. All rights reserved.

17

GMPLS Multi-Vendor/SP Network
LSP Setup Example•Router & Optical NEs belong to a single/multiple OSPF area•routers share topology•head-end router computes path (CSPF) and signals for LSP todestination router IB/OB•Destination router accepts request•Acceptance confirmed to source router•LSP (data plane) setup complete
NMS/OSS

GMPLS Networkrouter

GMPLS

Optical
NNI

Optical
GMPLS

IP/MPLS
Network

MetroAccess© 2003 Cisco Systems, Inc. All rights reserved.

NNIMetro
Corerouter
GMPLS
IP/MPLS
Network
18

Questions?

Presentation_ID© 2003 Cisco Systems, Inc. All rights reserved.

19

Closing Thoughts
Why is network management so important to the success of
GMPLS/UCP?

• UCP/GMPLS as an enabler for NGN
Standards-based common control plane needed.
Capitalizes on the work already done with MPLS.

• Standards-based interaction between control plane,forwarding, data plane and NMS needed.

• Single interface across all network elements• Despite all of this, a unified management solution for FCAPS
is essential for success.

© 2003 Cisco Systems, Inc. All rights reserved.

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Arigato!

© 2003 Cisco Systems, Inc. All rights reserved.

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F0_7604_c1© 2000, Cisco Systems,© 2003
Inc.
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TIFF (Uncompressed) decompressor
are needed to see this picture.

MPLS Network Management: MIBs, Tools, and Techniques (Morgan-Kaufman, 2002)© 2003 Cisco Systems, Inc. All rights reserved.

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