Assigning priorities according to the protocols [Документация VAS Experts]
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    en:dpi:dpi_options:opt_priority:priority_config [2020/02/05 17:30] – ↷ Page moved from en:dpi:dpi_options:base_functionality:opt_priority:priority_config to en:dpi:dpi_options:opt_priority:priority_config lexx26en:dpi:dpi_options:opt_priority:priority_config [2024/09/26 15:29] (current) – external edit 127.0.0.1
    Line 1: Line 1:
    -====== 3 Assignment of priorities vs protocols ======+====== Assigning priorities according to the protocols ====== 
     +{{indexmenu_n>3}} 
     +The protocol priorities (assigned by system administrator) are loaded by DPI from the file **/etc/dpi/protocols.dscp.**
      
     +This file is created in two steps: first one creates a text file with the list of protocols and their priorities. Second, it is converted into an internal format by a special utility.
     +
     +To apply the changes you need to the DPI configuration with the following command:
     +<code>service fastdpi reload</code>
     +===== The file format of protocols and priorities list: =====
     +
     +Each line contains the protocol name, then space, then dscp value. **For example:**
     +<code>
     +dns         0x3F
     +skype       drop
     +compressnet 010
     +ftp         keep
     +http        cs0
     +default     keep
     +</code>
     +<note important>[[en:dpi:dpi_options:opt_statistics:statistics_info|Full list of protocols.]]\\
     +DSCP value is specified as [[en:dpi:dpi_options:opt_priority:dscp_table|decimal, hex or octal number or as a text abbreviation]].</note> 
     +
     +Keywords meaning:
     +  * drop - indicates that packets must not be transmitted further. They must be dropped.
     +  * keep - shows that priority must keep its current value (typically 0).
     +  * default - means "for all remaining protocols" and allows to simplify significantly making the configuration file.
     +
     +===== To convert into an internal format: =====
     +<code>cat my_dscp.txt|lst2dscp protocols.dscp</code>
     +<note>**[SSG v13+]** in input files of the lst2dscp utility, it is now possible to add comments (#) and empty lines.</note>
     +
     +To move the settings into the work directory:
     +<code>mv protocols.dscp  /etc/dpi/protocols.dscp</code>
     +
     +<note warning>Please use mv instruction! It is an atomic one. Do not use copy!</note>