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C

HAPTER

  3:  O

PERATING

 

A

 

MULTI

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ROLE

 

RECORDER

27

 

Processing and extracting iNET-X data from recorded PCAP files

Since the  PCAP  file contains packets  generated by each of the  user-modules, it may  be necessary  to  extract

individual module data for a specific stream ID. 
Consider a PCAP file containing recorded data with multiple stream IDs generated by several user-modules in the

multi-role recorder. The following describes how to filter and extract all the recorded packets with the stream ID

0x45 67 89 AB in the PCAP file. 

1.

Open the PCAP file in Wireshark. 

Wireshark displays all packets recorded in the file. 

2.

In the Wireshark filter text field, apply the following filter: 

udp && data.data[4]==45 && data.data[5]==67 && data.data[6]==89 && data.data[7]==AB

This filter instructs Wireshark to display only iNET-X/UDP/IP packets whose stream ID matches 0x45 67 89 AB.

3.

Save the filtered iNET packets as a separate PCAP file.

Filtered iNET packet data may also be exported to file in a format such as *.raw, *.dat, or *.bin.

Содержание SSR/CHS/001/B

Страница 1: ...May 27 11 28 15 Logging Multi role Recorders User Guide ...

Страница 2: ......

Страница 3: ...e 10 way Ethernet interface to a PC 4 Connecting the 19 way interface 5 Connecting the voice interface 5 Connecting GPS 5 Installing user modules 5 Installing removing memory media 6 Installing removing a CF card 6 Installing removing a SATA SSD 7 Multi role recorder grounds 8 GND 8 CHASSIS 8 POWER 8 Grounding a multi role recorder 8 Replacing the RTC battery 9 Installing a multi role recorder in ...

Страница 4: ...9 Recording data 19 Controlling data recording 19 Recording data with wraparound 20 Recording events 21 About time sources 21 Estimated remaining time 21 Using SNMP 22 Configuring the IP address 22 Setting wraparound mode 22 Monitoring operation 22 External control of the screen brightness 22 Transmitting and recording data 22 File formats and management 24 Formatting files 24 Opening and closing ...

Страница 5: ...multi role recorder purchase In this Multi role Recorders User Guide we use an SSR CHS 001 B multi role recorder as the example for drawings and procedures Where a drawing or procedure differs from the SSR CHS 001 B refer to the respective multi role recorder data sheet About this Multi role Recorders User Guide The Multi role Recorders User Guide is intended for engineers who need to install and ...

Страница 6: ...ing Curtiss Wright equipment See ESD considerations on page 3 Registering for technical updates Curtiss Wright issues a monthly bulletin which provides updates on software versions and documentation changes To register for this bulletin contact Curtiss Wright support acra support curtisswright com Getting help and support Visit www cwc ae com for further information about the company s products an...

Страница 7: ...s on page 3 Multi role recorder connectors on page 4 Installing user modules on page 5 Installing removing memory media on page 6 Multi role recorder grounds on page 8 Replacing the RTC battery on page 9 Installing a multi role recorder in an aircraft on page 10 ESD considerations Read this section before removing items from their antistatic package WARNING Always ensure that proper ESD precaution...

Страница 8: ...t of warranty repair costs Connecting the 6 way power interface to a power supply Use the supplied CON PSU 007 to connect the power interface to a 28V DC power supply 1 Assemble the CON PSU 007 connector See the CON PSU 007 data sheet 2 Connect the CON PSU 007 to the 6 way power interface on the multi role recorder 3 Connect the other end to the aircraft DC power supply Connecting the 10 way Ether...

Страница 9: ...nformation To connect to an external source assemble a cable that supports RS 422 To assemble and connect this cable do the following 1 Assemble the CON MMO 001 F19A connector See the CON MMO 001 F19A data sheet 2 For first generation multi role recorders connect the audio source to the voice interface within the CON MMO 001 F19A connector 3 Connect the CON MMO 001 F19A to the 19 way I O connector...

Страница 10: ...nserted the ERROR LED is on When removing media ensure the LOGGING LED is not on in order to prevent data loss Installing removing a CF card To prevent incorrect insertion the media and housing are keyed 1 To open the media door turn the captive thumbscrew counter clockwise 2 CF cards are not designed to be fully inserted within the housing Push the CF card firmly until it stops and the eject butt...

Страница 11: ...e counter clockwise 2 Insert the SATA SSD firmly until it is flush with the housing 3 Close the door then push and turn the handle clockwise 4 To remove a SATA SSD open the media door then firmly pull on the media handle to remove it Do not push here doing so prevents the media handle from turning easily Do not push here doing so prevents the media handle from turning easily ...

Страница 12: ...is the return line for the 28V multi role recorder power supply NOTE The POWER pin is not connected to the CHASSIS line or GND line within the multi role recorder Grounding a multi role recorder Each ground must be connected to the main star point on the aircraft or vehicle using a low impedance connection Hence the GND pins on a multi role recorder PSU connector the CHASSIS pin on the PSU connect...

Страница 13: ...new battery wear insulating gloves so as not to short the battery terminals Shorting the battery terminals reduces the lifetime of the battery If you do not have insulating gloves then only handle the battery at the sides To replace the RTC battery refer to the following 1 Remove the four M2 Allen screws from the battery holder and then remove the holder 2 Loosen the M2 Allen screw on the battery ...

Страница 14: ...rcraft or other location ensure there is room to connect and disconnect cables and also to insert and remove recording media As shown in the following figure the multi role recorder can be secured to a surface using mounting brackets or mounted in a Dzus rail with the front Dzus screws Figure 4 Installing an SSR CHS 001 B NOTE For the bend radius measurement of NET CON 00X cables see the Network c...

Страница 15: ...Recorders User Guide such as specifications and pinout definitions refer to the respective multi role recorder data sheet For more information on PCAP see TEC NOT 051 Ethernet frames Wireshark and FAT32 Software overview Software which you can use with a multi role recorder includes both Curtiss Wright software and third party software DAS Studio 3 You can use Curtiss Wright s DAS Studio 3 to disc...

Страница 16: ...ata acquired from the plug in user modules GPS Digital IRIG B input IEEE 1588 Precision Time Protocol version 1 PTPv1 Grandmaster CVSD audio encoder this has a default audio encoding bit rate of 64kbps to provide good quality audio NOTE The packetization of CVSD audio data is described in TEC NOT 067 IENA and iNET X packet payload formats Third party SNMP tools SNMP is a standard network protocol ...

Страница 17: ...ust be pulled to toggle EVENT button While recording is in progress pressing the EVENT button increases the event counter and inserts an event packet into the current recording stream These event packets become bookmarks in the post processing phase When an error message is displayed press the EVENT button to clear the error message The EVENT button is also used to navigate the display menus when ...

Страница 18: ...to an SSR CHS 001 C NOTE Even though the recorder is still recording packets on the backplane when the Ethernet input is discon nected it is regarded as an error condition As an error condition it is reported via the Error LED and the REC_STATUS output signal on the I O connector NOTE Multi role recorders do not have a power on off switch Once power is connected the multi role recorder is always o...

Страница 19: ...NT released STOP position while pressing the EVENT then START then STOP position within 10 seconds STOP START Valid used media inserted after media removed Remove media Press EVENT Valid not full media 10 seconds elapsed OR EVENT released Valid full media 10 seconds elapsed OR EVNENT released Remove media No Ethernet link or Half duplex link detected Press EVENT or Full duplex Ethernet link detect...

Страница 20: ...ure For example if the recorder is receiving 30 Mbps including data from modules and data from Ethernet the display shows 75 If the module is receiving 70 Mbps the display shows 175 since this is greater than 100 some incoming data would be lost if recording was to be started Figure 8 Display showing percentage of nominal logging speed on SSR CHS 001 C Viewing current configuration To see the curr...

Страница 21: ...ti role recorder For information on changing configuration settings see Using SNMP on page 22 and TEC NOT 058 Overview of SNMP and using third party SNMP tools Wraparound Enabled PTP In Sync PTP Grandmaster 000C 4D AB CD EF Ethernet 100MX FullDuplex View configuration IP Address 192 168 28 1 MAC Address 000C 4D 56 78 9A IP Mask 0 0 0 0 Brightness 100 Press EVENT Press EVENT Press EVENT Normal oper...

Страница 22: ...s on When complete the display indicates a ready state that is N000 Stopped Do not disconnect power to the multi role recorder until formatting has ended Formatting a SATA SSD using the SSRFormat utility A SATA SSD can be formatted with a PC using the SSRFormat software utility SSRFormat is a stand alone command line utility which reformats the SATA SSD and reserves space on the drive for use by m...

Страница 23: ...r example if the control method selected is remote then all other control methods are disabled After a power outage the multi role recorder starts up in its previously configured state Network remote control Multi role recorders allow for START STOP and EVENT functions to be controlled through a network using SNMP To use this function the multi role recorder must be configured for network remote o...

Страница 24: ...the media is full recording stops automatically and the ERROR LED lights To continue recording the media must be replaced with formatted media or the current media must be formatted see Formatting memory media using a multi role recorder on page 18 1 Insert the media into the multi role recorder If the display shows Stopped go to step 2 If the display shows Not Empty Use press the EVENT button the...

Страница 25: ...ets this is a 32 bit value with an upper limit of 2147483647 eventIenaTrailer is used only with IENA format event packets It specifies the final 16 bit word of the packet About time sources A multi role recorder timestamps each Ethernet frame that is recorded in a PCAP file In the absence of an external time source a multi role recorder uses its local clock to timestamp the recorded packets A mult...

Страница 26: ...d to a multi role recorder see TEC NOT 058 Overview of SNMP and using third party SNMP tools and the MIB text file Monitoring operation The current state of operation can be monitored via SNMP in real time Examples of SNMP variables include streamSpeed and currentFileName The streamSpeed SNMP variable can be used to determine the current recording speed whilst currentFileName indicates the current...

Страница 27: ...der ethernetRecording 0 Setting this variable to 0 disables Ethernet recording but it does not disable Ethernet packets from the SSR CHS 001 B setting it to 1 enables Ethernet recording Both the recorded Ethernet and multi role recorder data packets are stored in a PCAP file format NOTE For background information on the rules and guidelines for generating and recording Ethernet frames as Wireshark...

Страница 28: ...reated is a function of the default file size and the capacity of the memory media If the defaultFileSize SNMP variable is set to zero the multi role recorder sets it automatically based on the capacity of the media mounted This setting can be configured using SNMP for more information on using SNMP see TEC NOT 058 Overview of SNMP and using third party SNMP tools Opening and closing of files When...

Страница 29: ... event packets in the recorded data by pressing the EVENT button You can monitor the memory usage and be warned when the media is close to becoming completely full A multi role recorder supports a freeSpaceWarningLimit SNMP variable When the amount of free memory available on the media falls below the threshold the multi role recorder issues a blinking warning notification on the display allowing ...

Страница 30: ... be instantly viewed in Explorer When the media is mounted locally on a PC it is possible to browse the following information date time attributes file size file name The following figure displays examples of PCAP files stored on the memory media taken from a multi role recorder Figure 13 Memory media viewed in Windows Explorer For information on how data is stored in PCAP files see TEC NOT 051 Et...

Страница 31: ... The following describes how to filter and extract all the recorded packets with the stream ID 0x45 67 89 AB in the PCAP file 1 Open the PCAP file in Wireshark Wireshark displays all packets recorded in the file 2 In the Wireshark filter text field apply the following filter udp data data 4 45 data data 5 67 data data 6 89 data data 7 AB This filter instructs Wireshark to display only iNET X UDP I...

Страница 32: ...This page is intentionally blank ...

Страница 33: ...hout notice This publication may contain or reference information and products protected by copyrights or patents and does not convey any license under the patent rights of Curtiss Wright nor the rights of others Curtiss Wright does not assume any liability arising out of any infringements of patents or other rights of third parties Curtiss Wright makes no warranty of any kind with regard to this ...

Страница 34: ...Curtiss Wright www curtisswrightds com 2021 Curtiss Wright 15 Terry Drive Newtown PA 18940 USA Block 5 Richview Office Park Clonskeagh Dublin 14 Ireland Phone 1 267 352 2020 Phone 353 1 295 1264 ...

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