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Network and System Configuration
22
ProSafe Plus Switch Utility
Cable Test
Some switch models have a cable testing feature that allows you to check for cable faults. If a
cable fault is found on a port, the cable test gives an estimate of the distance of the fault from
the switch.
To perform a cable test:
1. Click System > Monitoring > Cable T
ester.
The Cable Tester screen displays.
2. Select the ports to be tested and click TEST SELECTED PORT.
If a problem with the cable is found, the approximate distance to the cable fault is
displayed.
Note: The distance to the cable fault can be up to 5 meters from the actual
fault.
MultiCast
IGMP Snooping
Internet Group Management Protocol (IGMP) snooping allows a switch to forward multicast
traffic intelligently on the switch. Multicast IP traffic is traffic that is destined to a host group.
Host groups are identified by class D IP addresses, which range from 224.0.0.0 to
239.255.255.255. Based on the IGMP query and report messages, the switch forwards traffic
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