ZyXEL Communications XGS2220 Series User Manual page 349

Figure 252 SWITCHING > Spanning Tree Protocol > Spanning Tree Protocol Status: MRSTP
The following table describes the labels in this screen.
Table 186 SWITCHING > Spanning Tree Protocol > Spanning Tree Protocol Status: MRSTP
LABEL DESCRIPTION
Tree Select which STP tree configuration you want to view.
Bridge Root Bridge 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 Bridge and Our Bridge if the Switch is the root switch.
Hello Time This is the time interval (in seconds) at which the root switch transmits a configuration
(seconds) message. The root bridge determines Hello Time, Max Age and Forwarding Delay.
Max Age This is the maximum time (in seconds) the Switch can wait without receiving a configuration
(seconds) message before attempting to reconfigure.
Forwarding Delay This is the time (in seconds) the root switch will wait before changing states (that is, listening to
(seconds) 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 This is the number of times the spanning tree has been reconfigured.
Changed Times
Chapter 53 Spanning Tree Protocol
XGS2220 Series User's Guide
349