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FAQ-What Are Descriptions of the Traffic Suppression of the MA5680T

Publication Date:  2012-07-25 Views:  60 Downloads:  0
Issue Description
Q:
What are descriptions of the traffic suppression of the MA5680T? 
 
Alarm Information
Null
Handling Process
A:
MA5680T(config-if-giu-0/20)#display traffic-suppress 0
Traffic suppression ID definition: 
  ---------------------------------------------------------------------
   NO.  Min bandwidth(kbps)  Max bandwidth(kbps)  Package number(pps)
  ---------------------------------------------------------------------
     1                    6                  145                   12
     2                   12                  291                   24
     3                   24                  582                   48
     4                   48                 1153                   95
     5                   97                 2319                  191
     6                  195                 4639                  382
     7                  390                 9265                  763
After a test, when broadcast packets or unknown unicast packets are suppressed, the priority is based on the package number.
For example, the traffic suppression index is 7.
The maximum traffic bytes: 9265 x 1024/8 = 1185920 bytes
Frame length: 1185920 / 763 = 1554 bytes
When the frame length of the data traffic is smaller than 1554 bytes, the data traffic is sent based on package number. When the frame length of the data traffic is larger than 1554 bytes, the data traffic is sent based on Max bandwidth. Generally, the frame length of data packets is not larger than 1554 bytes. Therefore, the default allowed broadcast traffic of the MA5680T is 763 packets, not 9 Mbit/s. Generally, the broadcast traffic of the MA5680T is larger than 9 Mbit/s. The smaller the frame length is, the larger the allowed broadcast traffic is. This is different from the traffic suppression of the MA5300. 
 
Root Cause
Null
Suggestions
Null

END