The wwpLeosMstpNewRootNotification indicates
that the sending agent has become the new root of
the Spanning Tree for the specified XST (CIST or
MSTI).  This notification is generated when the
Port Role Selection state machine invokes the
updtRolesTree procedure and this procedure operation
results in a calculation of a Root Priority Vector
for the XST which results in a value indicating that
the bridge itself has become the root bridge for the
XST.

A wwpLeosMstpTopologyChangeNotification is sent
by a bridge for the specified XST when the Topology
Change state machine invokes the newTcWhile procedure
which causes the tcWhile timer for the specified port
and XST to change from a zero value to a non-zero value.

A wwpLeosMstpPortBackupNotification is sent whenever 
the MSTP state machine logic determines that a loop
has occurred and the received vector information
represents another port on the same device.  This
notification is sent when the updtRolesTree procedure
determines that the designated bridge and designated
port components of the port priority vector reflect
another port on this bridge which results in the
selectedRole parameter for the CIST to transition to
BackupPort.

A wwpLeosMstpPvstBpduReceivedNotification is sent to 
indicate that one or more PVST BPDUs have been received
on the port in the past 60 seconds.  Each minute, all
ports are checked for reception of one or more PVST BPDUs
and this notification is generated if any PVST BPDUs
have been received.

A wwpLeosMstpSelfLoopNotification is sent whenever 
device detects same cable connected to a port in a loop back.
This determination is made by comparing the layer-2 address
of the received frame with that of the bridge.  This occurs
before the frame data reaches the MSTP state machine logic.
Also if loop-back blocking is enabled on the device then
mstp will block this port (self disable).

A wwpLeosMstpPortOperEdgeNotification is sent whenever 
the MSTP state machine logic causes a change in the
operEdge parameter associated with the specified port.

A wwpLeosMstpPortFlapNotification is sent whenever 
device detects a port flapping. 
          
This notification is generated under following criteria.
If device detects port flapped more than once
within 1 minute timer period and it has not sent
notification within last 5 minutes then it will
generate this notification.

A wwpLeosMstpBridgeRootPortLostNotification is sent
whenever device detects that bridge root port is lost
for a particular XST (CIST or MSTI).  This notification
is generated when a link has gone down and the role 
parameter for the CIST or any MSTI for that port is set
to Root Port.
          
This notification will indicate either the link failure
or link partner MSTP disabled.