S5500V2-48P-SI

无线丢包的话，可以看下无线是否有干扰导致

看有线段是否有丢包的话，做流统

PC1(192.168.1.2)----------交换机--------------(19)7500E(20)----------PC2(192.168.2.2)

acl number 3055 

 rule   permit icmp source 192.168.1.2  0 destination 192.168.2.2   0    //源是PC1地址，目的是PC2地址

acl number 3066 

 rule   permit icmp source 192.168.2.2 0 destination 192.168.1.2  0   //源是PC2地址 ，目的是PC1地址

traffic classifier in operator and

 if-match acl 3066

traffic classifier out operator and

 if-match acl 3055

traffic behavior in

accounting  

traffic behavior out

accounting  

#             

 qos policy in 

classifier in behavior in

 qos policy out 

classifier out behavior out

interface GigabitEthernet1/0/19

qos apply policy in outbound

qos apply policy out inbound

#             

interface GigabitEthernet1/0/20

qos apply policy in inbound

qos apply policy out outbound

下发流统后，然后PC1和PC2互ping下，然后通过下面命令显示

<H3C>dis qos po int GigabitEthernet1/0/19 

<H3C>dis qos po int GigabitEthernet1/0/20