ZyXEL XGS4700-48F User Guide - Page 169
Advanced Application > Spanning Tree Protocol > Status: MSTP
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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. CST This section describes the Common Spanning Tree settings. 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. Max Age (second) Forwarding Delay (second) Cost to Bridge Port ID Configuration Name Revision Number Configuration Digest This is the maximum time (in seconds) a switch can wait without receiving a configuration message before attempting to reconfigure. This is the time (in seconds) the root switch will wait before changing states (that is, listening to learning to forwarding). This is the path cost from the root port on this Switch to the root switch. 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. This field displays the configuration name for this MST region. This field displays the revision number for this MST region. A configuration digest is generated from the VLAN-MSTI mapping information. Topology Changed Times Time Since Last Change Instance: This field displays the 16-octet signature that is included in an MSTP BPDU. This field displays the digest when MSTP is activated on the system. This is the number of times the spanning tree has been reconfigured. This is the time since the spanning tree was last reconfigured. These fields display the MSTI to VLAN mapping. In other words, which VLANs run on each spanning tree instance. Instance VLAN MSTI Bridge Bridge ID This field displays the MSTI ID. This field displays which VLANs are mapped to an MSTI. Select the MST instance settings you want to view. Root refers to the base of the MST instance. Our Bridge is this Switch. This Switch may also be the root bridge. 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. XGS4700-48F User's Guide 169