103
Note: The Web GUI allows user select the priority number directly. This is the
convinent of the GUI design. When you configure the value through the CLI or
SNMP, you may need to type the value directly. Please follow the n x 4096 ruls
for the Bridge Priority.
Max Age (6-40)
: Enter a value from 6 to 40 seconds here. This value represents
the time that a bridge will wait without receiving Spanning Tree Protocol
configuration messages before attempting to reconfigure.
If PMI is not the root bridge, and if it has not received a hello message from the
root bridge in an amount of time equal to Max Age, then PMI will reconfigure
itself as a root bridge. Once two or more devices on the network are recognized
as a root bridge, the devices will renegotiate to set up a new spanning tree
topology.
Hello Time (1-10)
: Enter a value from 1 to 10 seconds here. This is a periodic
timer that drives the switch to send out BPDU (Bridge Protocol Data Unit) packet
to check current STP status.
The root bridge of the spanning tree topology periodically sends out a “hello”
message to other devices on the network to check if the topology is “healthy”.
The “hello time” is the amount of time the root has waited during sending hello
messages.
Forward Delay Time (4-30)
: Enter a value between 4 and 30 seconds. This value
is the time that a port waits before changing from Spanning Tree Protocol
learning and listening states to forwarding state.
This is the amount of time PMI will wait before checking to see if it should be
changed to a different state.
Once you have completed your configuration, click on
Apply
to apply your
settings.
Note
: You must observe the following rule to configure Hello Time, Forwarding
Delay, and Max Age parameters.
2 × (Forward Delay Time – 1 sec) ≥ Max Age Time ≥ 2 × (Hello Time value + 1
Summary of Contents for PMI-110-F2G
Page 1: ...1 PMI 110 F2G User s Manual Version 3 0 Industrial Managed PoE Switch ...
Page 5: ...1 5 2 Westermo Private MIB 234 5 3 Revision History 235 ...
Page 19: ...15 ...
Page 168: ...164 4 8 3 DSCP Queue Mapping 4 8 4 CLI Commands of the Traffic Prioritization ...
Page 193: ...189 ...
Page 234: ...230 Note No CLI command for this feature ...
Page 240: ...236 ...
