Whataretwocharacteristicsofdual-ringinterconnectinSDHnetworks?()

A.Itprotectssignalsagainstnodefailuresbetweenrings. B.Itprotectssignalsagainstnodefailurewithinasinglering. C.Itallowsfortraffictobepreemptedwhenaringswitchoccurs. D.Trafficcanbedroppedandcontinuedatinterconnectingnodes. E.Itprotectspreemptibletrafficfrombeingdroppedwhenaringswitchoccurs.

时间:2023-09-10 14:20:06

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