345 在MSR路由器上执行命令,输出如下信息: Interface: GigabitEthernet0/1 Output queue : (Urgent queuing : Size/Length/Discards) 0/100/0 Output queue : (Protocol queuing : Size/Length/Discards) 0/500/0 Output queue : (Priorit queuing : PQL 1 Size/Length/Discards) Top: 3/20/42878 Middle: 10/40/0 Normal: 60/60/259195 Bottom: 80/80/344297 则以下说法中 正确的是