-35-
VLANs, each instance is associated with the L2 domain on which it performs
loop detection/mitigation. This enables a port to be stopped in one instance (for
example, in the above example, traffic from VLAN A) while traffic can remain
active in another domain where no loop was seen (in VLAN B in the above
example).
3.2.3.5.1
System configuration
STP state: Enable/disable STP on the device
STP protocol version: Select the STP mode or MSTP mode
Region Name:
Revision Level: Enter an unsigned 16-bit number that identifies the
revision of the current MST configuration. The possible field range
0-65535.
Max Hops — Enter the total number of hops that occur in a specific
region before the BPDU is discarded. Once the BPDU is discarded,
the port information is aged out. The possible field range is 1-40.
Priority: You can change priority value, A value used to identify the
root bridge. The bridge with lowest value has the highest priority and
is selected as the root. Value range <0- 61440>, the value must be in
steps of 4096. Default value is 32768.
Max Age: You can change Max Age value. The maximum age of
received protocol information before it is discarded. Value range
<6-40>. Default value is 20.
Hello Time: You can change Hello time value. The time interval
between the transmission of Configuration BPDUs by a Bridge that is
attempting to become the Root or is the Root. Value range <1-10>.
Default value is 2
Forward Delay: You can change forward delay time. The time spent
by a Port in the Listening State and the Learning State before moving
