如上图所示的网络中,交换机 SWA 为二层交换机,路由器 RTA 为各 PC 的网关在路由器 RTA 上做了如下配置 : [RTA]interface Ethernet 0/0 [RTA-Ethernet0/0]ip address 10.10.10.1 255.255.255.0 [RTA-Ethernet0/0]interface ethernet 0/0.2 [RTA-Ethernet0/0.2]ip address 20.20.20.1 255.255.255.0 [RTA-Ethernet0/0.2]vlan-type dotlq vid 2 [RTA-Ethernet0/0.2]interface ethernet 0/0.3 [RTA-Ethernet0/0.3]ip address 30.30.30.1 255.255.255.0 [RTA-Ethernet0/0.3]vlan-type dotlq vid 3 在交换机 SWA 上完成相应配置后, PCA 、 PCB 和 PCC 都可以 ping 通自己的网关,下面交换机 SWA 端口 Ethernetl/0/4 的配置应为(选择一项或多项)
A.
interfaceEthernet 1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all
B.
interfaceEthernet1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all port trunk pvid vlan 2
C.
interface Ethernet1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all port trunk pvid vlan 3
D.
interface Ethernet 1/0/4 port link-mode bridge port link-type trunk port trunk permit vlan all port trunk pvid vlan 10