JDS Uniphase SmartClass User Manual page 84

Chapter 7 Data testing
Capturing network traffic
3 Specify the Packet Capture settings. The following table describes the settings.
Setting
Filename
Packet limit
Promiscuous mode
Use IP filter
IP Filter
Use Port Filter
Port Filter
Use Custom Filter
Custom Filter
4 Select Packet Capture Menu
5 Press the # key to start the capture.
NOTE:
The Start key is only available if a valid network connection is present.
Captured information is saved to the file. If you have a USB storage device connected, it will
be saved there. If not, the file will be saved to the SmartClass Triple Play Services file system.
CAUTION: CORRUPTED DATA
Removing the USB drive during a file capture or file save may corrupt the data. Do not remove
the drive until all files have been saved or the packet capture is complete.
You have captured network traffic.
66
Description
Name of the file where the captured packets are saved.
The packet limit indicates how much information can be stored in the capture
file (in other words, the size of the capture file). You can specify from 1 to
10000000 packets. When the maximum file size has been reached, the
SmartClass Triple Play Services automatically stops capturing packets.
Enabling Promiscuous mode causes the SmartClass Triple Play Services to
capture all IP traffic regardless of source or destination addresses.
Specify whether to filter messages by IP address ( No will disable the filter).
If you selected "Yes" to Use IP filter, enter an IP address to filter on.
Only information from the IP address you entered will be captured.
Specify whether to filter messages by port ( No will disable the filter).
If you selected "Yes" to Use Port Filter, enter the port number to filter on.
You can enter a number from 2 to 65534. Only messages from the port you
entered will be captured.
Specify whether to filter messages using a custom filter ( No will disable the fil-
ter)
If you selected "Yes" to Use Custom Filter, enter a text string using the key-
pad. Some commonly used strings are as follows:
– tcp - captures only TCP packets
– udp - captures only UDP packets
– igmp - captures only IGMP packets
– not tcp - captures all packets except TCP
– less 1000 - captures all packets less than 1000 bytes in length
– greater 1000 - captures all packets greater than 1000 bytes in length.
SmartClass TPS User's Guide
22035456, Rev 001 June 2014