Trend in Submarine Maintenance as IP and DWDM Converge Ken Herrmann - - PowerPoint PPT Presentation

Trend in Submarine Maintenance as IP and DWDM Converge

Ken Herrmann Ken Herrmann

VSNL International VSNL International

Presenter Profile

Ken has 21 years of experience in the Telecommunications industry. His undersea cable experience includes laser development, cable system commissioning, Maintenance Authority representative,

• perations and finally strategic planning. He has also

been involved in managing and engineering terrestrial links that bring customer traffic to the large capacity submarine systems. Ken has a BS in Electrical Engineering from the University of Dayton. He started his career at AT&T Bell Labs in Murray Hill, NJ

Ken Herrmann

• Sr. Manager Strategic Planning Sub-Sea

& Terrestrial Routes k.herrmann@vsnlinternational.com (732)-888-6765 Mobile 908-472-9706

Trend in Submarine Maintenance as IP and DWDM Converge

A Commitment a Cable Owner MUST Provide Repairs are Costly Operations

– Running Cost for a Repair

• Fuel & Lube Oil,
• Labor,
• At Sea Insurance,
• Port Charges,
• Consumables,
• ROV Costs,
• & Miscellaneous

Contract to Guarantee Ship Availability

– Consortium Maintenance

– Private Maintenance – Open Market

Submarine Cable Maintenance

Consortium & Private Maintenance Contracts

Open Market Maintenance

Traffic Restoration

• Restoration is an Essential Customer

Requirement

• Cable failures can take, on average 2

weeks

• There has been a progression that moves

the restoration from the cable head to the customer

Cable Restoration Schemes the Early Years

Cable Restoration Schemes SDH/SONET Ring

IP POP

Cable Restoration Schemes IP Scenario

• Cable Systems at 10G, currently
• 40G is in the near future

WDM Over Submarine Cables

Global Lit Capacity for Subsea Cables

7,000 Gb/s

Current Estimated Lit

41,000 Gb/s

Fully Upgraded Estimated Lit

• If each new 10G wave cost $200k, it

would cost $68 million to upgrade the Worlds cable systems

Estimated cost for Submarine Cable Maintenance Worldwide

$200,000,000

Move Toward IP on Submarine Cables

• Trend toward purchasing of unprotected circuits
• IP interface cards being produced by terminal

suppliers

• Switching being moved from the cable station to

the city center POPs

• Large number of possible paths out of the city

centers

Convergence of WDM and IP

• WDM will provide the increased capacity at

a low cost to the customer

• IP will provide the customer restoration
• IP POPs will provide the connectivity to

multiple submarine paths

Submarine Cable Maintenance Cost Reduction Options

• Increase the the SLA requirements of Maintenance

contracts

• Reduce the number of ships
• Group repairs together to cut down on running

costs

Switching Trends Effect on Submarine Maintenance

• When SDH ring switching was applied to Submarine Cable

Systems –

Many Maintenance contracts were able to reduce the number of ships dedicated to the a contract – Time to repair was able to increase, though some risk of multiple failures was still present

• When IP switching is applied to Submarine Cable Systems

– Ship reductions – Time to repair increased, risk of multiple failures is reduced since the IP network is tied to multiple paths

IP POP

Cable Restoration Schemes

IP Over Multiple Path

There could be a trend toward a Spot Market if the a Repair doesn’t need to be happen ASAP

Thank You