Description of NAT statistics [Документация VAS Experts]
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    en:dpi:opt_cgnat:cgnat_diagnostics [2024/10/16 13:14] – elena.krasnobryzhen:dpi:opt_cgnat:cgnat_diagnostics [2026/03/24 15:16] (current) – [Output of public addresses statistics] elena.krasnobryzh
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     ====== Description of NAT statistics ====== ====== Description of NAT statistics ======
     {{indexmenu_n>4}} {{indexmenu_n>4}}
    -The output of statistics in fastdpi_stat.log is set by dbg_log_mask.+NAT statistics can be logged to stat_log and via fdpi_ctrl.\\ 
     +To view queue information, you can dump the NAT profile via fdpi_cli. 
     + 
     +===== Logging statistics to fastdpi_stat.log ===== 
     +This is configured using the ''dbg_log_mask'' parameter in /etc/dpi/fastdpi.conf. \\ 
     +A service reload is required for the changes to take effect: ''service fastdpi reload''\\ 
     +**Example:** \\ 
     +dbg_log_mask=0x2000000  
      
     0x40000   - output of NAT initialization details (profiles, public addresses, etc.) to the alert log \\ 0x40000   - output of NAT initialization details (profiles, public addresses, etc.) to the alert log \\
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     0x2000000 - NAT statistics output. 0x2000000 - NAT statistics output.
      
    -**Example:** \\ +
    -dbg_log_mask=0x2000000 +
      
     ==== Common for all profiles ==== ==== Common for all profiles ====
    Line 49: Line 56:
      
     **Four groups группы:** \\ **Four groups группы:** \\
    -1 group -- operations with public address ports+1 group — operations with public address ports
     <code> <code>
     30/20/0/7/17: 30/20/0/7/17:
    Line 60: Line 67:
     </code> </code>
      
    -2 group -- general statistics+2 group — general statistics
     <code> <code>
     0/0/0: 0/0/0:
    Line 69: Line 76:
     </code> </code>
      
    -3 group -- cache statistics //private --> public//+3 group — cache statistics //private → public//
     <code> <code>
     50/20/0/50/0: 50/20/0/50/0:
    Line 80: Line 87:
     </code> </code>
      
    -4 group -- conversion statistics //public --> private// (//inet-->subs//)+4 group — conversion statistics //public → private// (//inet→subs//)
     <code> <code>
     5516/8/121:  5516/8/121: 
      
    -5516 - successful translation public --> private+5516 - successful translation public → private
     8    - port is not in the allocated range of public ports 8    - port is not in the allocated range of public ports
    -121  - translation public --> private was not found+121  - translation public → private was not found
     </code> </code>
      
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     thr=0, ublock=1, uport=0 thr=0, ublock=1, uport=0
     thr=0 - worker thread number thr=0 - worker thread number
    -ublock=1 - public port blocks used  +ublock=1 - public ports blocks used  
    -uport=0 - public port used+uport=0 - public ports used
     </code> </code>
     <code> <code>
    Line 188: Line 195:
      
     ================================ ================================
    -192.168.4.20    crcip=0xd649d853        nttype=0        profile='cgnat' itrnsl=0 itrnsld=0       whiteip=94.140.198.86   sess_tcp=127    sess_udp=108   indmtd=4+192.168.4.20    crcip=0xd649d853        nttype=0        profile='cgnat' itrnsl=0 itrnsld=0       whiteip=94.140.198.86   sess_tcp=127     active_sess_tcp=0       sess_udp=108     active_sess_udp=1       indmtd=4
     </code> </code>
      
    Line 201: Line 208:
     whiteip=94.140.198.86 - public address whiteip=94.140.198.86 - public address
     sess_tcp=127    - number of TCP sessions sess_tcp=127    - number of TCP sessions
     +active_sess_tcp=0 - Number of active NAT translations for TCP
     sess_udp=108    - number of UDP sessions sess_udp=108    - number of UDP sessions
     +active_sess_udp=1 - Number of active NAT translations for UDP
     indmtd=4              - internal index of subscriber data (subscriber metadata) indmtd=4              - internal index of subscriber data (subscriber metadata)
      
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     The format is the same. The format is the same.
      
    -=== Key to command to view NAT profile statistics via fdpi_ctrl ===+ 
     +====List of NAT Translations==== 
     +Tracking translation lifetime. Displays a list of all NAT translations for the specified internal IP address.\\ 
     +The status of a translation is determined by the time of its last use and the lifetime parameter specified in the cluster options. If <lifetime> (in seconds) is specified, its value is used as the translation’s lifetime. 
     + 
     +Command format: 
     +<code>fdpi_cli nat show <internal_ip> [<lifetime>]</code> 
     + 
     +Sample output: 
     +<code> 
     +fdpi_cli nat show 172.16.120.35 
     +nat_type   protocol internal ip     internal port dest ip         dest port  external ip     external port active 
     +CGNAT      TCP      172.16.120.35   33186         0.0.0.0         0          172.16.120.4    1031          false 
     +CGNAT      TCP      172.16.120.35   52896         17.108.151.45   80         172.16.120.4    1024          false 
     +CGNAT      TCP      172.16.120.35   38762         0.0.0.0         0          172.16.120.4    1033          false 
     +CGNAT      TCP      172.16.120.35   40548         103.108.151.45  80         172.16.120.4    1038          false 
     +CGNAT      TCP      172.16.120.35   36466         17.108.151.45   443        172.16.120.4    1036          false 
     +CGNAT      TCP      172.16.120.35   37848         0.0.0.0         0          172.16.120.4    1026          false 
     +</code> 
     + 
     +Legend: 
     +<code> 
     +nat_type      - NAT type (0 - CGNAT, 1 - 1:1 NAT), 
     +protocol      - Layer 4 protocol (0 - TCP, 1 - UDP), 
     +internal_ip     - private IP, 
     +internal_port - internal port, 
     +dest_ip      - destination IP, 
     +dest_port      - destination port, 
     +external_ip     - external IP, 
     +external_port   - external port, 
     +active          - translation activity flag (true if active) 
     +</code> 
     +===== Key to command to view NAT profile statistics via fdpi_ctrl =====
     Command: Command:
     <code> <code>
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     <note>''rx_dispatcher'' parameter description [[en:dpi:opt_cgnat:сgnat_settings#parameters_and_possible_values|at the link]]</note> <note>''rx_dispatcher'' parameter description [[en:dpi:opt_cgnat:сgnat_settings#parameters_and_possible_values|at the link]]</note>
      
    -=== Key to command to view the dump NAT profile statistics ===+===== Key to command to view the dump NAT profile statistics =====
     Command: Command:
     <code> <code>
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      igcache          - index in the corresponding cache-slice recoding 'private --> public'   igcache          - index in the corresponding cache-slice recoding 'private --> public' 
     </code> </code>
     +
     +===== Monitoring Free/Busy Ports on Whitelisted Addresses =====
     +
     +Proactive monitoring helps avoid issues with a shortage of free ports and the resulting inability to create new sessions,
     +by allocating additional blocks of whitelisted addresses or reducing port allocation limits when resources in the current pool are exhausted.
     +
     +**Free ports on a white address** = whpf (unallocated) + whp_ruse (ready for reuse)\\
     +**Busy ports on a white address** = whpb (allocated) - whp_ruse (ready for reuse)