I limit the port INGRESS but get packet loss

Question

I use the limit speed method to limit the Juniper Switch port EGRESS and INGRESS speed.

but after I added the INGRESS filter to my port, there will loss packets on the switch every port.

anybody know how to do with this?

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Edit-01:

admin@1402A# run show configuration class-of-service                            
interfaces {                                                                    
    ge-0/0/19 {                                                                 
        shaping-rate 200m;                                                      
    }                                                                           
    ge-0/0/14 {                                                                 
        shaping-rate 200m;                                                       
    }                                                                           
    ge-0/0/36 {                                                                 
        shaping-rate 50m;                                                       
    }                                                                           
    ge-0/0/40 {                                                                 
        shaping-rate 50m;                                                       
    }                                                                           
    ge-0/0/42 {                                                                 
        shaping-rate 50m;                                                       
    }                                                                           
    ge-0/0/43 {                                                                 
        shaping-rate 50m;                                                       
    }                                                                           
    ge-0/0/47 {                                                                 
        shaping-rate 50m;                                                       
    }                                                                           
}          

Answer 1

I found the issue :

[edit firewall]
   policer limit-50m {
       filter-specific;
       if-exceeding {
           bandwidth-limit 50m;
           burst-size-limit 15k;
       }
       then discard;
   }

from document:

burst-size-limit unit is byte, so I set it to 13m, it becomes fine.