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

®

                                                              

                                                 

WuHan MMR Network  Management Science

Technology Co.,Ltd. 

 

 

 

 

 

 

 

 

                                   

430074 

027-87462135   87461586  

027-87462140  

 

                                        E-  Mail:  whcy_pub@whcy.sina.net    

24 

   

 

11 QoS

 

“IEEE 802.1P

VLAN

3

Bit

Priority

3

Priority

When “IEEE 802.1P Priority” is selected, equipments will 

fetch three-Bit Priority information of data packets marks with VLAN tag and compare with 

threshold values set by the equipment, if three-Bit Priority information values are greater than or 

equal to threshold values set by equipments, then the data packets are supposed to possess the highest 

priority and ranged among high priority queue to forward. Besides, the priority threshold values of 

equipments can be selected by “rank” down button. 

“TOS/DS

IP

DS

DSCP

DS

=101110

2

001010

2

010010

2

011010

2

100010

2

110000

2

111000

2

DS

When “TOS/DS priority” is selected, equipments will extract DSCP priority 

information of DS domain from IP head of data packets. When DS domain of data packets is equal to 

101110

2

001010

2

010010

2

011010

2

100010

2

110000

2

 and 111000

2

, data packets will be classified 

as high priority queue to forward; When DS domain of data packets is other value, data packets will 

be placed as low priority queue to forward. 

When “Port Priority” is selected to launch, the port then becomes high