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Which switching feature allows all equal cost paths to be active?
PVST+
STP
SPB
RSTP
Shortest Path Bridging (SPB) winning the data center fabric standards battle? ... SPB is IEEE 802.1aq and is based on the same MAC-in-MAC technique used in IEEE 802.1ah, Provider Backbone Bridging. SPB uses a link state routing protocol to allow switches to learn the shortest paths ...SPB also allows Ethernet networks to deploy multiple active paths to overcome the traditional active-passive redundancy of Spanning Tree, in which half of all ports could be in a non-forwarding mode. This is not a CCNA level topic
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