CHAPTER 4
Routine Monitoring
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Monitoring Interface Status and Traffic on page 233
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Verifying the Status of a LAG Interface on page 234
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Verifying That EEE Is Saving Energy on Configured Ports on page 235
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Verifying That LACP Is Configured Correctly and Bundle Members Are Exchanging LACP
Protocol Packets on page 237
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Verifying That Layer 3 Subinterfaces Are Working on page 238
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Verifying Unicast RPF Status on page 239
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Verifying IP Directed Broadcast Status on page 241
Monitoring Interface Status and Traffic
Purpose Use the monitoring functionality to view interface status or to monitor interface bandwidth
utilization and traffic statistics on the EX Series switches.
The J-Web interface monitors interface bandwidth utilization and plots real-time charts
to display input and output rates in bytes per second. In addition, the Interface monitoring
page displays input and output packet counters and error counters in the form of charts.
Alternatively, you can enter the show commands in the CLI to view interface status and
traffic statistics.
NOTE: For logical interfaces on EX Series switches, the traffic statistics fields
in show interfaces commands show only control traffic; the traffic statistics
do not include data traffic.
NOTE: EX Series switches do not support the collection and reporting of IPv6
transit statistics. Therefore, the IPv6 transit statistics field in the show
interfaces commands displays all values as 0.
Action To view general interface information in the J-Web interface such as available interfaces,
select Monitor > Interfaces. Click any interface to view details about its status.
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