Avaya P120 SMON Manuel D’Utilisation

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Chapter 1
 5
Avaya P120 SMON User Guide
Treating any variable with abnormal behavior as an issue that 
should be investigated further using other SMON tools.
In general, the Switch Statistics tool can help you spot problems that only 
become apparent from a high-level view over time. By periodically 
viewing Switch Statistics, you can detect normal and abnormal behavior 
of the specific switch configuration.
SMON collects and displays all information in real-time. In addition, 
information collected during a session can be saved in a report.
Port Statistics Overview
The Port Statistics tool measures the traffic travelling through each port 
on the selected device. For each port, SMON summarizes the traffic, such 
as packets into the device and packets from the device. You can sort by 
port name or by any of the packet types. You can see, for example, the 
ports generating the most errors.
If you notice that a particular port displays a disproportionate amount of 
errors, this may suggest that a device connected to the port is responsible 
for the problem. 
You select the most active ports by using a rate base. SMON measures the 
rate base for all the ports to find the most active ports and then displays 
these ports and their statistics. This process is called Port TopN.
Using the Port Statistics tool in conjunction with VLAN Statistics and 
Switch Statistics makes it straightforward to discover the cause of a 
problem. For example, using Switch Statistics you may discover that there 
are too many errors on a specific switch. You could then use Port Statistics 
to help indicate the port from which the problem originates.
VLAN Statistics Overview
The VLAN Statistics tool measures the switched traffic travelling through 
VLANs on the selected switch. A VLAN consists of stations connected 
logically rather than physically. A VLAN can be used, for example, to 
distribute network resources by department, even if the department’s 
stations are not all located in the same area. Therefore, a VLAN can 
incorporate stations from different devices. 
By comparing the load of each VLAN you can discover which VLANs are:
Utilizing their full capacity.
Under capacity.