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Packets view
The Packets view presents a list of captured packets and the packet decode information in Hex, ASCII and EBCDIC. The following sections describes how to view a packet and its decode information, how to find related packets, and how to change the layout of this view.
Packet list
Matching to the setting of Packet buffer size and When buffer is full in the Project Settings - General page, the packet list view offers the list of packets captured from the node selected in the Project Explorer.
By default, the packet decode information are showed at the bottom of the Packets view. Click the layout icons to change the display. A packet decode window can be opened when you double click on a packet.
In addition to the common context commands as other tab views, this view also has the following special commands:
| Command |
Description |
Decode Packet in New Window |
Opens a new window to show packet decode information; alternately, you can double click on the packet. |
Highlight Packet |
Highlights the current packet. |
Packet Comment |
Adds, edits or deletes a comment for the current packet; the packet with a comment is marked with  . |
Summary |
Shows the packet summary.
- Automatic - show the uppermost protocol summary
- IP Summary - show the packet summary of IP protocols; if no IP protocols, show the uppermost protocol summary
- TCP/UDP Summary - show the packet summary of TCP/UDP protocols; if no TCP/UDP protocols, show the uppermost protocol summary
|
Export Packet... |
Exports selected packets to a file. |
Set Relative Packet |
Sets the current packet as the relative packet. |
Select Related Packets |
Selects and highlights the related packets by source, destination, source and destination, protocol or port. |
Hide Selected Packets |
Only shows the unselected packets. |
Hide Unselected Packets |
Only shows the selected packets. |
Unhide All Packets |
Shows all packets. |
The columns in the Packets view offer many packet details. You can select more or less columns to show: right click on the column heading bar and choose the More... command to open the Select Column dialog, check the column headings you want to display.
If you only want to view those packets related to the current selection, you can first choose Select Related Packets and a condition from the context menu, Javvin Packet Analyzer will highlight all related packets; then right lick to open the context menu again and select Hide Unselected Packets.
The table below lists the column headings available in the Packets view and the specific meaning they indicate.
Default |
Column Heading |
Description |
* |
No. |
The packet number which is set automatically by Javvin Packet Analyzer. |
* |
Absolute Time |
The actual time when the current packet is transmitted. |
* |
Source |
The IP address or physical address where the current packet is transmitted from. |
* |
Destination |
The IP address or physical address where the current packet is transmitted to. |
* |
Protocol |
The protocol used by the current packet in transmission. |
* |
Size |
The bytes of the current packet. |
* |
Summary |
The summary for the current packet. |
|
Date |
The date when the current packet is captured. |
|
Delta Time |
The time span between the current packet and the previous packet. |
|
Relative Time |
The time span between the current packet and the relative packet (if no relative packet is defined, the first packet is the relative packet). |
|
IP Identifier |
The identification number of an IP packet. |
|
Source Physical |
The physical address where the current packet is transmitted from. |
|
Destination Physical |
The physical address where the current packet is transmitted to. |
|
Source IP |
The IP address where the current packet is transmitted from. |
|
Destination IP |
The IP address where the current packet is transmitted from. |
|
Source Port |
The port number where the current packet is transmitted from. |
|
Destination Port |
The port number where the current packet is transmitted to. |
|
Comment |
The comment made for the current packet. |
You can rearrange the column heading bar by changing a column's position or width.
Packet decode
The packet decode view is a part of the Packets view, presenting the decode information of selected packet, you can use the icon  to show or hide it. Alternately, the packet decode information can be showed in the Packet Decode window with double clicks on a packet row.
To show the Hex view, click the icon  , which contains the actual packet contents in raw hexadecimal on the left and its ASCII (or EBCDIC) equivalent on the right. The packet information in the packet decode view, Hex and ASCII/EBCDIC view are consistent, when you select a section in one of these views, the corresponding portions will be highlighted in the other views.
You may choose to show packet contents as ASCII or EBCDIC from the context menu by a right click in the Hex view. If you want to save the data, you can select Copy Hex or Copy Text.
The layout of the Packet Decode window can be changed; use the icon  and  to rearrange the display.
The context menus of the packet decode view and Hex and ASCII/EBCDIC view contain the following useful commands:
Command |
Description |
Copy (Ctrl+C) |
Copies the selection and puts it on the clipboard. |
Copy Tree |
Copies the packet decode tree and puts it on the clipboard. |
Expand All |
Expands all items of the display. |
Collapse All |
Collapses all items of the display. |
Copy Hex |
Copies the selected Hex codes and puts it on the clipboard. |
Copy Text |
Copies the selected ASCII/EBCDIC text and puts it on the clipboard. |
Show ASCII |
Shows the decoded information as ASCII. |
Show EBCDIC |
Shows the decoded information as EBCDIC. |
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