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Accessible Date: April 30, 2003 Number: CLECAM03-157 Effective Date: June 16, 2003 Category: Resale Subject: (ORDERING AND PROVISIONING) Introduction of Ethernet over SONET (twd-050) Related Letters: NA Attachment: NA States Impacted: SBC Midwest Issuing SBC ILECS: SBC Illinois, SBC Indiana, SBC Michigan, SBC Ohio and SBC Wisconsin (collectively referred to for purposes of this Accessible Letter as “SBC Midwest Region 5-State”) Response Deadline: NA Contact: Account Manager Conference Call/Meeting: NA SBC Midwest is sending notice of its intent to file tariff revisions to offer Ethernet over SONET in Indiana, Illinois, Michigan, Ohio & Wisconsin. This is a retail service offering that will be available to resale at the applicable resale discount. These tariff changes are anticipated to be effective on or after June 16, 2003. Ethernet over SONET is delivered as a simple point-to-point private line solution with Ethernet integrated into the SONET platform. Ethernet is added on to SONET by directly mapping the Ethernet frames into the SONET payload. The Ethernet signal is transported inside a SONET frame from one network element to another network element. Because the Ethernet is mapped into a SONET frame the Ethernet can be transported across any SONET network element, however a Next Generation SONET network element must be used at each Ethernet hand-off location. Provisioning of the Ethernet over SONET (EoS) is handled just like a DS-1 or DS-3. Multiple Ethernet signals can be transported across the same network using different STSs. Scalable rates for Ethernet ports are recommended to be 100 Base T – 100 Mb/s (STS-1, STS-3c), or 1 Gigabit Ethernet – 1Gb/s (STS-1, STS-3c, STS-12c, STS-24c), in terms of port speed (transport capacity). Bandwidth Customer wants USOC Service Mapped to Port (Bandwidth Output) S9TAX OC-3 STS 50 Mb 50 Mb S9TBX OC-12 STS 50 Mb 50 Mb S9TCX OC-12 OC-3 150 Mb 100 Mb S9TDX OC-12 STS 50 Mb 50 Mb S9TEX OC-12 OC-3 150 Mb 150 Mb S9TGX OC-48 STS 50 Mb 50 Mb S9THX OC-48 OC-3 150 Mb 100 Mb S9TJX OC-48 STS 50 Mb 50 Mb S9TKX OC-48 OC-3 150 Mb 150 Mb S9TLX OC-48 OC-12 600 Mb 600 Mb S9TMX OC-48 OC-24 1.2 Mb 1000 Mb S9TNX OC-192 STS 50 Mb 50 Mb S9TOX OC-192 OC-3 150 Mb 100 Mb S9TPX OC-192 STS 50 Mb 50 Mb S9TQX OC-192 OC-3 150 Mb 150 Mb S9TRX OC-192 OC-12 600 Mb 600 Mb S9TSX OC-192 OC-24 1.2 Mb 1000 Mb After the effective date of this offering, please consult the CLEC Online web site (https://clec.sbc.com) for ordering details. SBC reserves the right to make any modifications to or to cancel the above information prior to the proposed filing or effective dates. Should any modifications be made to the information, these modifications will be reflected in a subsequent letter sent at the time of the filing. Should the information be canceled, SBC will send additional notification at the time of cancellation. SBC will incur no liability to the CLECs if such information, mentioned above, is canceled by SBC or is not ultimately put into effect.
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