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Carrier Wholesale Services

Carrier Services » Wholesale access » Regional Network Transport » Cell Backhaul 2

Charter Business Overview A division of Charter Communications » Leading broadband communication company » 4 th largest cable operator in the Unites States with services in 29 states » We serve over 375, 000 businesses 3

The Charter Network » » 4 Over 65, 000 fiber route miles and 210, 000 coaxial route miles 10, 000 fiber lit buildings and 3, 800 lit cell towers 130, 000 near net buildings Network owned and operated end-to-end by Charter

The Charter Network Madison Greenville/Spartanburg » Dense fiber network in key Tier 2 and Tier 3 Markets 5

Ethernet Services » MEF 9 & MEF 14 Certified » Access EPL and Access EVPL service available via ENNI locations » EPL and EVPL service available throughout footprint 6

Ethernet ENNI for Wholesale Access » Support at key carrier hotels nationwide » Support for dedicated 1 Gb or 10 Gb ENNI ports, or shared port via Ethernet exchange 7 Site 1 Wilshire City State Regions Served from NNI Los Angeles CA Southern California 56 Marietta Atlanta GA GA, SC, NC, VA, AL, TN 350 Cermak Chicago IL MI 474 Main Worcester MA MA, NY, CT, VT 19675 W. 10 Mile Rd. Southfield MI MI 511 11 th Avenue Minneapolis MN MN, WI 900 Walnut St. Louis MO MO, IL 113 N. Myers Charlotte NC SC, NC, VA, GA, AL, TN 220 Gardner St. Reno NV NV 522 SE Washington Ave Roseburg 921 SW Washington Portland OR OR, WA 301 N. Main Greenville SC SC, NC, VA, GA, AL , TN 1950 Stemmons Dallas TX TX 222 W. Washington Madison WI WI, MN 2001 6 th Ave. Seattle WA WA

E-NNI Diagram Three key elements: » ENNI: Physical port handoff to carrier » UNI: Physical port handoff to customer premise » EVC: Ethernet Virtual Circuit connecting ENNI to UNI End to end CFM (Circuit Fault Management) from demarc to demarc 8

Proven Project Management Charter Business executes a proven customer-centric approach for planning and executing projects. » A consistent approach across all key markets » A proven, well-vetted approach to tracking and reporting » Standardized documentation for project deliverables » A single point of contact for your team and your customers » An efficient procedure for escalation and issue resolution 9

Network Operations Center Proactive Notification » experienced technicians monitor your services, the status of our network and performance. Direct Access » to Technicians who assume immediate responsibility until any open issues are resolved. Technical Expertise » from highly-trained NOC technicians with advanced technical expertise. U. S. Based » Easily communicate your needs 10

Ethernet Performance Objectives Point to Point Optical Ethernet SLA Metrics 0– 100 >100– 250 >250– 500 >500– 1000 >1000– 1500 Availability 99. 95% Delay 10 ms 20 ms 40 ms 60 ms 80 ms Delay Variation 2 ms 2 ms Loss Ratio 0. 05% Availability 99. 9% Delay 15 ms 30 ms 50 ms 80 ms 100 ms Delay Variation 3 ms 3 ms Loss Ratio 0. 1% Mileage Band Premiere SLA Express SLA 11

Ethernet Services Attributes 12 Service MEF Certifications Speeds Supported Optical Ethernet EPL EVPL Access EVPL All service types are MEF 9 and MEF 14 certified 10 Mb to 10 Gb (typically in 10 Mb increments, but custom speeds can be supported ) Physical Medium / CPE 10 BASE-T, 100 BASE-TX, 1000 BASE-SX, 1000 BASE-LX, 10 GBASE-SX, 10 GBASE-LX Mode Full Duplex EVC Multiplexing Yes EVC Numbering Coordinated by Charter and carrier Q in Q Support Yes Maximum MTU 2000 standard, up to 8996 based on circuit design CE VLAN preservation Yes Ethernet Frame Delivery See detailed grid

Wholesale Ethernet Access 13

Cell Backhaul 14

Wavelength Service 15

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