Synchronization in carrier class Ethernet

Bonjour,

We used to say that PDH is plesiochronous and SDH is synchronous. These
concepts concern the timing for the TDM multiplexing, this allowing to
have higher capacities to carry the client data

What is the situation in a network transport that uses WAN Ethernet?

Ethernet multiplexing could be done through VLAN or MPLS. Can we say
that it is asynchronous multiplexing?

Thanks for your comments.
Regards,
Michelot

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