华为数通智选S1730S-L24T2SR-A1交换机 S1730S-L24T2SR-A1(24个10/100/1000BASE-T以太网端口,2个千兆SFP,交流供电) 交换容量52Gbps,包转发率38.69Mpps,机架式,静音款,8K MAC,默认含挂耳