Netgear GS752TP GS728TP/GS728TPP/GS752TP Software Administration Manual - Page 103

Table 19., MST port configuration information., Field, Description, Port Path Cost i, Disabled

Page 103 highlights

GS752TP, GS728TP, and GS728TPP Gigabit Smart Switches Table 19. MST port configuration information. Field Auto-calculated Port Path Cost Port ID Port Mode Port Forwarding State Port Role Designated Root Designated Cost Designated Bridge Designated Port Description Displays that the path cost is not automatically calculated (Disabled). Path cost is recalculated based on the link speed of the port if the configured value for Port Path Cost is 0. The port identifier for the specified port within the selected MST instance. It is made up from the port priority and the interface number of the port. Spanning Tree Protocol Administrative Mode associated with the port or port channel. Possible values are Enable and Disable. Indicates the current STP state of a port. If enabled, the port state determines what forwarding action is taken on traffic. Possible port states are: • Disabled. STP is disabled on the port. The port forwards traffic while learning MAC addresses. • Blocking. The port is blocked and cannot be used to forward traffic or learn MAC addresses. • Listening. The port is in the listening mode. The port cannot forward traffic or learn MAC addresses. • Learning. The port is in the learning mode. The port cannot forward traffic, however, it can learn new MAC addresses. • Forwarding. The port is in the forwarding mode. The port can forward traffic and learn new MAC addresses Each MST bridge port that is enabled is assigned a port role for each spanning tree. The port role is one of the following values: Root, Designated, Alternate, Backup, Master, or Disabled. Root bridge for the selected MST instance. It is made up using the bridge priority and the base MAC address of the bridge. Displays cost of the port participating in the STP topology. Ports with a lower cost are less likely to be blocked if STP detects loops. Bridge identifier of the bridge with the designated port. It is made up using the bridge priority and the base MAC address of the bridge. Port identifier on the designated bridge that offers the lowest cost to the LAN. It is made up from the port priority and the interface number of the port. Configuring Switching Information 103

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Configuring Switching Information
103
GS752TP, GS728TP, and GS728TPP Gigabit Smart Switches
Table 19.
MST port configuration information.
Field
Description
Auto-calculated Port Path
Cost
Displays that the path cost is not automatically calculated (Disabled). Path
cost is recalculated based on the link speed of the port if the configured
value for
Port Path Cost i
s 0.
Port ID
The port identifier for the specified port within the selected MST instance. It
is made up from the port priority and the interface number of the port.
Port Mode
Spanning Tree Protocol Administrative Mode associated with the port or port
channel. Possible values are Enable and Disable.
Port Forwarding State
Indicates the current STP state of a port. If enabled, the port state
determines what forwarding action is taken on traffic. Possible port states
are:
Disabled
. STP is disabled on the port. The port forwards traffic while
learning MAC addresses.
Blocking
. The port is blocked and cannot be used to forward traffic or
learn MAC addresses.
Listening
. The port is in the listening mode. The port cannot forward
traffic or learn MAC addresses.
Learning
. The port is in the learning mode. The port cannot forward
traffic, however, it can learn new MAC addresses.
Forwarding
. The port is in the forwarding mode. The port can forward
traffic and learn new MAC addresses
Port Role
Each MST bridge port that is enabled is assigned a port role for each
spanning tree. The port role is one of the following values: Root, Designated,
Alternate, Backup, Master, or Disabled.
Designated Root
Root bridge for the selected MST instance. It is made up using the bridge
priority and the base MAC address of the bridge.
Designated Cost
Displays cost of the port participating in the STP topology. Ports with a lower
cost are less likely to be blocked if STP detects loops.
Designated Bridge
Bridge identifier of the bridge with the designated port. It is made up using
the bridge priority and the base MAC address of the bridge.
Designated Port
Port identifier on the designated bridge that offers the lowest cost to the LAN.
It is made up from the port priority and the interface number of the port.