Chapter 12 Statistics Screens
Management Switch Card User’s Guide
472
12.14.2 MSTP CIST Statistics: Port Details
Click a port’s link in the Statistics > MSTP screen to see detailed MSTP CIST statistics for that
port.
Figure 314 MSTP Statistics: CIST: Port Details
BridegMaxAge This is the maximum time (in seconds) the root bridge can wait without receiving a
configuration message before attempting to reconfigure.
BridegHelloTime This is the time interval (in seconds) at which the root switch transmits a
configuration message. The root bridge determines the Hello Time, Max Age and
Forward Delay.
BridegForwardDelay This is the time (in seconds) the root switch will wait before changing states (that is,
listening to learning to forwarding).
ForceVersion This is the version of spanning tree protocol the device is using (MSTP or RSTP).
The system will send BPDUs of the specified spanning tree version.
TransmitHoldCount This is the number of BPDUs that are allowed to be sent before pausing for 1
second.
IntRootID This field displays the ID of the root switch in a region.
IntRootPathCost This field displays path cost to the internal root bridge.
Port Info.
sub1~up2 These are the MSC’s subtending and uplink Ethernet ports. Click a link to see
detailed MSTP CIST statistics for that port.
Enable This field displays whether a port is active or not.
Uptime This field displays the time the port is running.
State This field displays the STP status on this port.
PortID This field displays port ID.
MACOperational This field displays true when the link is up or false if the link is not up.
RecvInternal This field displays whether the BPDU received was transmitted by a bridge in the
same region.
Table 230 MSTP Statistics: CIST (continued)
LABEL DESCRIPTION
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