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Using E-Trunk to Implement Link Aggregation Across Devices
In Figure 3-18, the Enhanced Trunk (E-Trunk) protects the links between CE1 and the two PEs (PE1 and PE2) on the network. CE1 is connected to PE1 and PE2 using two Eth-Trunks in LACP mode, which are formed into an E-Trunk to implement redundancy and enhance network reliability.
