Spanning Tree Configuration Page Options

Select Configure>Switching>Spanning Tree in the J-Web user interface.
The Spanning Tree configuration page appears. Table 130 explains the contents of this page.
Click one of the following:
- Add—Adds a new or duplicate Spanning Tree configuration. Enter information as specified in Table 131.
- Edit—Edits a selected Spanning Tree configuration.
- Delete—Deletes the selected Spanning Tree configuration.
Click one:
- OK—Saves the configuration and returns to the main configuration page.
- Commit Options>Commit—Commits the configuration and returns to the main configuration page.
- Cancel—Cancels your entries and returns to the main configuration page.

Table 130: Spanning Tree Configuration Page

Field	Function
Protocol Name	Displays the Spanning Tree Protocol.
State	Displays the state of the protocol.
Bridge Priority	Displays the bridge priority details. The bridge priority determines which bridge is elected as the root bridge. If two bridges have the same path cost to the root bridge, the bridge priority determines which bridge becomes the designated bridge for a LAN segment.
VLAN members	Displays the VLAN member details.
Details of Protocol
General
State	Displays the state of the protocol.
Bridge Priority	Displays the bridge priority details. The bridge priority determines which bridge is elected as the root bridge. If two bridges have the same path cost to the root bridge, the bridge priority determines which bridge becomes the designated bridge for a LAN segment.
Hello Time	Displays the time interval, in seconds, at which the root bridge transmits configuration BPDUs.
Forward Delay	Displays the number of seconds that an interface waits before changing from the spanning-tree learning and listening states to the forwarding state.
Max Age	Displays the maximum aging time, in seconds, for all MST instances. The maximum aging time is the number of seconds that a switch waits without receiving spanning-tree configuration messages before attempting a reconfiguration.
Interfaces
Interface Name	Displays the interface for the Spanning Tree Protocol type.
Cost	Displays the link cost to control the designated bridge and the designated interface.
State	Displays the state of the protocol.
Priority	Displays the interface priority to control which interface is elected as the root port.
Edge	Displays the edge interface.
Mode	Displays the link mode.

Table 131: Add Spanning Tree Configuration Details

Field	Function	Action
STP
Protocol Name	Displays the Spanning Tree Protocol.	View only.
Disable	Specifies whether to disable STP on the interface.	To enable this option, select the check box.
BPDU Protect	Specifies that BPDU blocks are to be processed.	To enable this option, select the check box.
Bridge Priority	Specifies the bridge priority. The bridge priority determines which bridge is elected as the root bridge. If two bridges have the same path cost to the root bridge, the bridge priority determines which bridge becomes the designated bridge for a LAN segment.	Select a value.
Forward Delay	Specifies the number of seconds that an interface waits before changing from the spanning-tree learning and listening states to the forwarding state.	Enter a value from 4 through 30 seconds.
Hello Time	Specifies the time interval, in seconds, at which the root bridge transmits configuration BPDUs.	Enter a value from 1 through 10 seconds.
Max Age	Specifies the maximum aging time, in seconds, for all MST instances. The maximum aging time is the number of seconds a switch waits without receiving spanning-tree configuration messages before attempting a reconfiguration.	Enter a value from 6 through 40 seconds.
RSTP
Protocol Name	Displays the Spanning Tree Protocol.	View only.
Disable	Specifies whether RSTP must be disabled on the interface.	To enable this option, select the check box.
BPDU Protect	Specifies that BPDU blocks are to be processed.	To enable this option, select the check box.
Bridge Priority	Specifies the bridge priority. The bridge priority determines which bridge is elected as the root bridge. If two bridges have the same path cost to the root bridge, the bridge priority determines which bridge becomes the designated bridge for a LAN segment.	Select a value.
Forward Delay	Specifies the number of seconds that a port waits before changing from the spanning-tree learning and listening states to the forwarding state.	Enter a value from 4 through 30 seconds.
Hello Time	Specifies the hello time, in seconds, for all MST instances.	Enter a value from 1 through 10 seconds.
Max Age	Specifies the maximum aging time, in seconds, for all MST instances. The maximum aging time is the number of seconds that a switch waits without receiving spanning-tree configuration messages before attempting a reconfiguration.	Enter a value from 6 through 40 seconds.
MSTP
Protocol Name	Displays the Spanning Tree Protocol.	View only.
Disable	Specifies whether MSTP must be disabled on the interface.	To enable this option, select the check box.
BPDU Protect	Specifies that BPDU blocks are to be processed.	To enable this option, select the check box.
Bridge Priority	Specifies the bridge priority. The bridge priority determines which bridge is elected as the root bridge. If two bridges have the same path cost to the root bridge, the bridge priority determines which bridge becomes the designated bridge for a LAN segment.	Select a value.
Forward Delay	Specifies the number of seconds that a port waits before changing from the spanning-tree learning and listening states to the forwarding state.	Enter a value from 4 through 30 seconds.
Hello Time	Specifies the hello time, in seconds, for all MST instances.	Enter a value from 1 through 10 seconds.
Max Age	Specifies the maximum aging time for all MST instances. The maximum aging time is the number of seconds that a switch waits without receiving spanning-tree configuration messages before attempting a reconfiguration.	Enter a value from 6 through 40 seconds.
Configuration Name	Specifies the MSTP region name carried in the MSTP BPDUs.	Enter a name.
Max Hops	Specifies the maximum number of hops that a BPDU can be forwarded in the MSTP region	Enter a value from 1 through 255.
Revision Level	Specifies the revision number of the MSTP region configuration.	Enter a value from 0 through 65535.
MSTI
MSTI Id	Specifies the MSTI identifier. MSTI IDs are local to each region, so you can reuse the same MSTI ID in different regions. The following options are available: Add—Creates a MSTI. Edit—Edits an existing MSTI. Delete—Deletes an existing MSTI.	Select any of the available option.
Bridge Priority	Specifies the bridge priority. The bridge priority determines which bridge is elected as the root bridge. If two bridges have the same path cost to the root bridge, the bridge priority determines which bridge becomes the designated bridge for a LAN segment.	Select a value.
VLAN	Specifies the VLANs for the MSTI. The following options are available: Add—Selects VLANs from the list. Remove—Deletes the selected VLAN.	Select any of the available option.
Interfaces	Specifies the interface for the MSTP protocol. The following options are available: Add—Selects interfaces from the list. Edit—Edits the selected interface. Remove—Deletes the selected interface.	Select any of the available option.
Interfaces
Interface Name	Specifies the interface for the Spanning Tree Protocol type.	Select an interface.
Cost	Specifies the link cost to control the designated bridge and the designated interface.	Enter a value from 1 through 200,000,000.
Priority	Specifies the interface priority to control which interface is elected as the root port.	Select a value.
Edge	Specifies whether to configure the interface as an edge interface. Edge interfaces immediately transition to a forwarding state.	Select this option to configure the interface as an edge interface.
Mode	Specifies the link mode. The following options are available: Point to Point—For full-duplex links. Shared—For half-duplex links.	Select any of the available option.

Spanning Tree Configuration Page Options

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