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| 10.2 |  | Introducing Transparent LAN Service Architecture |
| 10.2.3 |  | Point-to-point dedicated |

Dedicated point-to-point TLS circuits provide for guaranteed bandwidth to the customer. This allows for easily monitored service level agreement (SLA) offerings and network capacity planning. Ethernet bandwidth is layered directly onto a Synchronous Transport Signal (STS) circuit running across the optical network.

A point-to-point Ethernet service can be sent over an optical STS core. The service is available with speeds of 10 Mbps, 100 Mb/s, or 1000 Mb/s. Service can be purchased in one-Mbps increments.