User Manual Managed Switches
81
Forward Delay (sec)
Setting
Description
Factory Default
Numerical value
input by user (4 to
30)
The amount of time this device waits before checking to
see if it should change to a different state.
15
Max. Age (sec)
Setting
Description
Factory Default
Numerical value
input by user (6 to
40)
If this device is not the root, and it has not received a hello
message from the root in an amount of time equal to
“Max. Age,” then this device will reconfigure itself as a
root. Once two or more devices on the network are
recognized as a root, the devices will renegotiate to set
up a new Spanning Tree topology.
20
Maximum Hop Count
Setting
Description
Factory Default
Numerical value
input by user (6 to
40)
The maximum number of hops in the MST Region. It
defines how many bridges a root bridge can distribute its
BPDU information.
20
Transmit Hold Count
Setting
Description
Factory Default
Numerical value
input by user (1 to
10)
The number of BPDUs a bridge port can send per
second. When exceeded, transmission of the next BPDU
will be delayed.
6
Advanced Settings
Edge Port BPDU Filtering
Setting
Description
Factory Default
Check / Uncheck
Control whether a port explicitly configured as Edge will
transmit and receive BPDUs..
Unchecked
Edge Port BPDU Guard
Setting
Description
Factory Default
Check / Uncheck
Control whether a port explicitly configured as Edge will
disable itself upon reception of a BPDU. The port will
enter the error-disabled state and will be removed from
the active topology..
Unchecked
Port Error Recovery
Setting
Description
Factory Default
Check / Uncheck
Control whether a port in the error-disabled state
automatically will be enabled after a certain time. If
recovery is not enabled, ports have to be disabled and
re-enabled for normal STP operation. The condition is
also cleared by a system reboot.
Unchecked
