Monitoring the System 
326
S3300 Smart Managed Pro Switch 
Cable Test
Use the Cable Test screen to display information about the cables connected to switch ports.
 To perform the cable test:
1.  Select Monitoring > Ports > Cable Test.
2.  Select the check box next to each port on which to run the cable test.
3.  Click the Apply button. 
The cable test is run on all selected ports. 
The cable test can take up to 2 seconds to complete. If the port has an active link then the 
link is not taken down and the cable status is always Normal. The command returns a 
cable length estimate if this feature is supported by the PHY for the current link speed. 
Note that if the link is down and a cable is attached to a 10/100 Ethernet adapter then the 
cable status can be Open or Short because some Ethernet adapters leave unused wire 
pairs unterminated or grounded. 
The following table describes the cable information displayed on the screen. 
Logs
The switch can generate messages in response to events, faults, or errors occurring on the 
platform as well as changes in configuration or other occurrences. These messages are 
stored locally and can be forwarded to one or more centralized points of collection for 
monitoring purposes or long term archival storage. Local and remote configuration of the 
Table 104.  Cable information 
Field Description
Port Specifies the port that has the connected cable.
Cable Status The cable status.
•  Normal. The cable is working correctly. 
•  Open. The cable is disconnected or there is a faulty connector. 
•  Short. There is an electrical short in the cable. 
•  Cable Test Failed. The cable status could not be determined. The cable 
can in fact be working. 
•  Untested. The cable has not been tested yet.
•  Invalid Cable Type.The cable type is unsupported.
Cable Length The estimated length of the cable in meters. The length is displayed as a range 
between the shortest estimated length and the longest estimated length. 
Unknown is displayed if the cable length could not be determined. The Cable 
Length is displayed only if the cable status is Normal.
Failure Location The estimated distance in meters from the end of the cable to the failure 
location. The failure location is displayed only if the cable status is Open or 
Short.