Chapter 4: Web configuration
NS3552-8P-2S-V2 User Manual 139
Object Description
forwarding (used in STP compatible mode). Valid values are in the range of
4 to 30 seconds
Default: 15
Minimum: The higher of 4 or [(Max. Message Age / 2) + 1]
Maximum: 30
Max Age The maximum age of the information transmitted by the Bridge when it is the
Root Bridge. Valid values are in the range 6 to 40 seconds.
Default: 20
Minimum: The higher of 6 or [2 x (Hello Time + 1)].
Maximum: The lower of 40 or [2 x (Forward Delay -1)]
Maximum Hop Count This defines the initial value of remaining hops for MSTI information
generated at the boundary of an MSTI region. It defines how many bridges a
root bridge can distribute its BPDU information. Valid values are in the range
6 to 40 hops.
Transmit Hold Count The number of BPDU's a bridge port can send per second. When exceeded,
transmission of the next BPDU is delayed. Valid values are in the range of 1
to 10 BPDU's per second.
Advanced settings
Object Description
Edge Port BPDU
Filtering
Controls whether a port explicitly configured as Edge will transmit and
receive BPDUs.
Edge Port BPDU
Guard
Controls whether a port explicitly configured as Edge will disable itself upon
reception of a BPDU. The port enters the error-disabled state, and is
removed from the active topology.
Port Error Recovery Controls 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.
Port Error Recovery
Timeout
The time that has to pass before a port in the error-disabled state can be
enabled. Valid values are between 30 and 86400 seconds (24 hours).
Note: The industrial managed switch implements the rapid spanning protocol as the
default spanning tree protocol. When selecting “Compatibles” mode, the system uses
the RSTP (802.1w) to be compatible and work with another STP (802.1D)’s BPDU
control packet.
Buttons
• Click Save to save changes.
• Click Reset to undo any changes made locally and revert to previously saved
values.
To Next Page
Loading...
