Motorola WS5100 Series Reference Manual page 203

AdminPort PortFast Displays the portfast BPDU filter for the admin port. The Spanning Tree Protocol
BPDU Filter sends BPDUs from all ports.
Enabling the BPDU Filter ensures PortFastenabled admin ports do not transmit or
receive BPDUs.
OperPort PortFast Displays a portfast BPDU filter for the oper port. The Spanning Tree Protocol sends
Bpdu Filter BPDUs from all ports.
Enabling the BPDU Filter feature ensures PortFastenabled oper ports do not
transmit or receive BPDUs.
AdminPort PortFast Displays the AdminPort PortFast BPDU Guard feature.
Bpdu Guard
When set for a bridge, all portfast-enabled ports having the
bpdu-guard set to default shut down the port on receiving the BPDU. When this
occurs, the BPDU is not processed.
OperPort PortFast Displays the OperPort PortFast BPDU Guard feature.
Bpdu Guard
When the OperPort PortFast BPDU Guard feature is set for a bridge, all portfast-
enabled ports that have the bpdu-guard set to default shut down the port on
receiving a BPDU. When this occurs, the BPDU is not processed.
Port Version Displays the port version associated with this instance. It can be either of the
following:
Port State Displays whether each port listed is disabled (not forwarding MST frames) or in a
forwarding mode. A port must be enabled to be able to forward.
Port Enable Displays the enable/disable MST designation of each port. A green check mark
indicates the Oper MAC Enable status is active/enabled. A green checkmark should
coincide with a port state of "forwarding" and a red "X" should coincide with a port
state of disabled.
Port Path Cost Displays the path cost for the specified port index. According to the original
specification, cost is 1,000 Mbps (1 gigabit per second) divided by the bandwidth
of the segment connected to the port. Therefore, a 10 Mbps connection would have
a cost of (1,000/10) 100.
Port Designated Cost Displays the port cost for each port on the switch. The cost helps determine the role
of the port in the MST network. The designated cost is the cost for a packet to travel
from this port to the root in the MST configuration. The slower the media, the higher
the cost.
Designated Port Defines the port connection used to send and receive packets. By having only one
designated port per segment, all looping issues should be resolved. Once the
designated port has been selected, any other ports that connect to that segment
become non-designated ports and block traffic from taking the defined path.
Forward Transitions Displays the number of frames received on this port and forwarded by the switch.
Protocol Migration If enabled, protocol migration enables the switch (when running MST) to
interoperate with legacy 802.1d switches. If the listed index receives a legacy
802.1D configuration BPDU, it only sends 802.1D BPDUs over its port.
A green checkmark defines the listed index as supporting protocol migration, and a
red "X" defines the listed index as having protocol migration disabled.
• STP
• Reserved
• RSTP
• MSTP
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Network Setup