HuBei MMR Network Technology Co. Ltd. MMR-EDB ユーザーズマニュアル

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®
                                                              
                                                 
WuHan MMR Network  Management Science
Technology Co.,Ltd. 
 
 
 
 
 
 
 
 
                                   
430074 
027-87462135   87461586  
027-87462140  
 
                                        E-  Mail:  whcy_pub@whcy.sina.net    
25 
priority one while data packets taken from it are forwarded as high priority ones; 
Tag
When “ priority of ports”
“7
When untagged packets received from the port sent from tagged ports, the tag will be added 
When “ priority of ports”“7”. 
®
4:1
8:1
16:1
Always high priority first
4/8/16
MMR
® 
switches over coax 
provides two priority queue. The sending proportion of high priority data packets and low priority 
data packets can be defined as 4:1
8:1
16:1
or always high priority first, that is: sending one low 
priority data packet after the high one, or if there exists one high priority data packet, it always be 
sent firstly. Please decide the sending proportion with “forwarding proportion” of “complete 
mechanism setting” of control software. 
5.4.5 
  Launch and Configurate Other Functions 
®
MMR
® 
switches  over 
coax supports functions of back pressure control and time setting of the loop testing. 
 
Backpressure
5
10
15
When checkbox of “launch back pressure control” occurs  “ ”, it means ports with 
half-duplex mode employ backpressure flow control mechanism; You can click “testing time of the 
loop” and select the testing time of the loop in the down menu, which is 5 seconds
10 seconds and