Chapter 13 Spanning Tree Protocol
The following table describes the labels in this screen.
Table 35 Advanced Application > Spanning Tree Protocol > Status: MSTP
LABEL | DESCRIPTION |
Configuration | Click Configuration to specify which STP mode you want to activate. |
| Click MSTP to edit MSTP settings on the Switch. |
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CST | This section describes the Common Spanning Tree settings. |
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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. |
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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. |
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Hello Time | This is the time interval (in seconds) at which the root switch transmits |
(second) | a configuration message. |
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Max Age | This is the maximum time (in seconds) a switch can wait without |
(second) | receiving a configuration message before attempting to reconfigure. |
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Forwarding | This is the time (in seconds) the root switch will wait before changing |
Delay (second) | states (that is, listening to learning to forwarding). |
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Cost to Bridge | This is the path cost from the root port on this Switch to the root |
| switch. |
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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. |
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Configuration | This field displays the configuration name for this MST region. |
Name |
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Revision | This field displays the revision number for this MST region. |
Number |
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Configuration | A configuration digest is generated from the |
Digest | information. |
| This field displays the |
| BPDU. This field displays the digest when MSTP is activated on the |
| system. |
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Topology | This is the number of times the spanning tree has been reconfigured. |
Changed Times |
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Time Since Last | This is the time since the spanning tree was last reconfigured. |
Change |
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Instance: | These fields display the MSTI to VLAN mapping. In other words, which |
| VLANs run on each spanning tree instance. |
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Instance | This field displays the MSTI ID. |
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VLAN | This field displays which VLANs are mapped to an MSTI. |
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MSTI | Select the MST instance settings you want to view. |
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Bridge | Root refers to the base of the MST instance. Our Bridge is this Switch. |
| This Switch may also be the root bridge. |
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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. |
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| 167 |
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