[c-nsp] DS3 Nubie

[sthaug at nethelp.no]

> There are other downsides [to metro ethernet] to consider.  Using ethernet 
> for long haul, your devices at each end are no longer directly connected, 
> but will have a network (the provider's ethernet switches) between them. 
> Failures in "the network" will cause your ends to lose contact with each 
> other, while their interfaces remain up/up.

Some providers offer WDM services with an Ethernet interface, and ensure
that a failure in the network results in link down. Your point is still
valid for many Ethernet service offerings, though.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no