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by visit it
www.sis-statistica.it/files/pdf/atti/rs08_spontanee_a_4_4.pdf -

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Posted by waqasahmad

SSU level contains collection of SSU clocks in syn area and their connections.

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Posted by sagitraz

SSU-Level refers to the collection of SSU compliant clocks in a Synchronisation area and their interconnections. SEC's are not part of the SSU-Level, but are considered to be transparent on connections between SSU's . Under failure free conditions, there is only one interconnected SSU-level in a Synchronisation area.

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Posted by nels