Huawei STP 2015-06-02 作者: Tim Ng POE for CCTV LSW7 G0/0/2 - LSW6 G0/0/2及LSW1 G0/0/1 - LSW2 G0/0/1為後備 LSW5 stp root primary LSW8 stp root secondary LSW1 int g0/0/1 stp cost 100 LSW6 int g0/0/2 stp cost 20