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Issues that need to be considered in the definition of an E2E Service Architecture Service Provider POP Access Transit PSN Access Service Provider POP PE1 Customer location Customer location PE2 CE1 CE2 Customer equipment Customer equipment PE1 PE2 CE1 CE2 Customer equipment Customer equipment These 2 interfaces can be similar or not (Eth/Eth, Eth/ATM, FR/ATM, etc.) These networks can belong to the same SP or different SPs These 2 Access/Metro Networks may use different technologies (MPLS, ATM, Eth, FR) CE2 (or CE1) can be managed by the SP or not |