Update guide [Документация VAS Experts]
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    en:dpi:changelog:update_guide [2025/12/26 12:51] – created elena.krasnobryzhen:dpi:changelog:update_guide [2026/02/12 09:29] (current) – [Version rollback] elena.krasnobryzh
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     ======Update guide====== ======Update guide======
     <note important> <note important>
    -Starting from version [[en:dpi:changelog:versions:ver_12|12.0]], DPI is supported **only** on centos 8.x and [[en:veos:installation|veos]].+Starting from version [[en:dpi:changelog:versions:ver_12|12.0]], DPI is supported **only** on CentOS 8.x and [[en:veos:installation|veos]].
     </note> </note>
      
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       * Make sure that the DPI configuration and dependent services (pcrf, radius) are valid.   * Make sure that the DPI configuration and dependent services (pcrf, radius) are valid.
       * Check the currently installed version:<code bash>yum info fastdpi</code>   * Check the currently installed version:<code bash>yum info fastdpi</code>
    -  * If centos 8.x is used, **once** switch repositories to vault:<code bash>sed -i -e '/^mirrorlist=http:\/\//d' -e 's/^# *baseurl=http:\/\/mirror.centos.org/baseurl=http:\/\/vault.centos.org/' /etc/yum.repos.d/CentOS-*.repo</code>+  * If CentOS 8.x is used, **once** switch repositories to vault:<code bash>sed -i -e '/^mirrorlist=http:\/\//d' -e 's/^# *baseurl=http:\/\/mirror.centos.org/baseurl=http:\/\/vault.centos.org/' /etc/yum.repos.d/CentOS-*.repo</code>
       * If there are dependency issues or the update cannot be found, run:<code bash>yum clean all</code>   * If there are dependency issues or the update cannot be found, run:<code bash>yum clean all</code>
      
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     =====DPI update===== =====DPI update=====
     +<note important>Starting with version [[en:dpi:changelog:versions:ver_14|14.0]], UDR is divided into [[en:dpi:dpi_components:platform:dpi_admin:admin_db|UDR and SDR]]. The division occurs automatically when the version is updated.</note>
     +
       * Main version update:<code bash>yum update fastdpi</code>   * Main version update:<code bash>yum update fastdpi</code>
       * Installation of a test (beta) version:<code bash>yum --enablerepo vasexperts-beta update fastdpi</code>   * Installation of a test (beta) version:<code bash>yum --enablerepo vasexperts-beta update fastdpi</code>
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     </note> </note>
      
     +====Features of updating in a distributed installation====
     +If the SSG (fastdpi) and PCRF (fastpcrf) modules are installed on different physical or virtual servers, two conditions must be met:
     +  - **Uniform software version:**\\ Ensure that the same versions of the fastdpi and fastpcrf packages are installed on both servers. Version mismatches between SSG and PCRF can lead to errors.
     +  - **Restart sequence:**\\ Processes must be restarted in the order specified below to restore the connection correctly.\\ Procedure for a distributed scheme:
     +    - On the SSG server, stop the DPI service:<code bash>service fastdpi stop</code>
     +    - On the PCRF server, restart the PCRF service:<code bash>service fastpcrf restart</code>
     +    - On the SSG server, start the fastdpi service:<code bash>service fastdpi start</code>
     +This order ensures that all services are started correctly.
     =====Service restart===== =====Service restart=====
      
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     </code> </code>
      
    -**Recommended pcrf restart order:**+**Recommended PCRF restart order:**
     <code bash> <code bash>
     service fastdpi stop service fastdpi stop
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     </note> </note>
      
    -  * For centos 8.x:<code bash>yum update</code>+  * For CentOS 8.x:<code bash>yum update</code>
      
     =====Version rollback===== =====Version rollback=====
      
       * Example rollback to version 14.0:<code bash>yum downgrade fastdpi-14.0 fastpcrf-14.0 dpiutils-14.0 fastradius-14.0</code>   * Example rollback to version 14.0:<code bash>yum downgrade fastdpi-14.0 fastpcrf-14.0 dpiutils-14.0 fastradius-14.0</code>
    -  * Example rollback to version 12.4:<code bash>yum downgrade fastdpi-12.4-0 fastpcrf-12.4-0</code>+  * Example rollback to version 12.4:<code bash>yum downgrade fastdpi-12.4-0 fastpcrf-12.4-0 dpiutils-12.4-0 fastradius-12.4-0</code>
      
     After rollback, service restart is required: After rollback, service restart is required:
     <code bash> <code bash>
    -service fastdpi restart+service fastdpi stop 
     +service fastpcrf restart 
     +service fastdpi start
     </code> </code>