Huawei Dumps Modern VLAN generation gives bendy manage for Ethernet and is broadly used. The HCNP-R & S-IESN examination covers the standards, configuration, and alertness of current Ethernet, VLAN, QinQ, STP / RSTP / MSTP, 802.1X, DHCP, MPLS LDP, and MPLS VPN technology in organization networks, in addition to Huawei Ethernet.