User manual

Chapter 13 Spanning Tree Protocol
GS2210 Series User’s Guide
131
13.7 Multiple Rapid Spanning Tree Protocol Status
Click Advanced Application > Spanning Tree Protocol in the navigation panel to display the status
screen as shown next. See Section 13.1 on page 121 for more information on MRSTP.
Note: This screen is only available after you activate MRSTP on the Switch.
Figure 106 Advanced Application > Spanning Tree Protocol > Status: MRSTP
Note: The following table describes the labels in this screen.
Table 51 Advanced Application > Spanning Tree Protocol > Status: MRSTP
LABEL DESCRIPTION
Configuration Click Configuration to specify which STP mode you want to activate. Click MRSTP to edit
MRSTP settings on the Switch.
Tree Select which STP tree configuration you want to view.
Bridge Root refers to the base of the spanning tree (the root bridge). Our Bridge is this switch. This
Switch may also be the root bridge.
Bridge ID This is the unique identifier for this bridge, consisting of bridge priority plus MAC address. This ID
is the same for Root and Our Bridge if the Switch is the root switch.
Hello Time
(second)
This is the time interval (in seconds) at which the root switch transmits a configuration
message. The root bridge determines Hello Time, Max Age and Forwarding Delay.
Max Age (second) This is the maximum time (in seconds) the Switch can wait without receiving a configuration
message before attempting to reconfigure.
Forwarding Delay
(second)
This is the time (in seconds) the root switch will wait before changing states (that is, listening to
learning to forwarding).
Note: The listening state does not exist in RSTP.
Cost to Bridge This is the path cost from the root port on this Switch to the root switch.
Port ID This is the priority and number of the port on the Switch through which this Switch must
communicate with the root of the Spanning Tree.
Topology
Changed Times
This is the number of times the spanning tree has been reconfigured.
Time Since Last
Change
This is the time since the spanning tree was last reconfigured.
Port This field displays the number of the port on the Switch.