H3C S5560S-28P-EI交换机 LS-5560S-28P-EI H3C S5560S-28P-EI 以太网交换机主机,支持24个10/100/1000BASE-T电口,支持8个100/1000BASE-X SFP Combo口,支持4个1000BASE-X SFP端口