Using E-Trunk Between Multiple PEs Connected to a CE
E-Trunk is supported by only the following models: S5720-EI, S5720-HI, S5720I-SI, S5720S-SI, S5720-SI, S5735-S, S5735S-S, S5735-S-I, S5730-HI, S5730S-EI, S5730-SI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720-LI, S6720S-EI, S6720S-LI, S6720S-SI, S6720-SI, S6730-H, S6730S-H, S6730-S, and S6730S-S.
As shown in Figure 1, the Enhanced Trunk (E-Trunk) protects the links between CE1 and two PEs (PE1 and PE2) on the network. CE1 is connected to PE1 and PE2 using two Eth-Trunks in LACP mode. The two Eth-Trunks form an E-Trunk to implement backup and enhance the network reliability.
