ZyXEL Communications GS1920-48HPv2, Руководство пользователя

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Chapter 13 Spanning Tree Protocol
GS1920v2 Series User’s Guide
141
13.5 Ra pid Spa nning Tre e Pro to c o l Sta tus
Click
Adva nc e d Applic a tio n
>
Spa nning Tre e Pro to c o l
in the navigation panel to display the status
screen as shown next. See Section 13.1 on page 135 for more information on RSTP.
Note: This screen is only available after you activate RSTP on the Switch.
Fig ure 109
Advanced Application > Spanning Tree Protocol > Status: RSTP
The following table describes the labels in this screen.
Apply Click
Apply
to save your changes to the Switch’s run-time memory. The Switch loses these
changes if it is turned off or loses power, so use the
Sa ve
link on the top navigation panel to
save your changes to the non-volatile memory when you are done configuring.
Cancel Click
C a nc e l
to begin configuring this screen afresh.
Table 51 Advanced Application > Spanning Tree Protocol > RSTP (continued)
LABEL DESC RIPTIO N
Table 52 Advanced Application > Spanning Tree Protocol > Status: RSTP
LABEL DESC RIPTIO N
Configuration Click
C o nfig ura tio n
to specify which STP mode you want to activate. Click
RSTP
to edit RSTP
settings on the Switch.
Bridge
Ro o t
refers to the base of the spanning tree (the root bridge).
O ur Bridg e
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
Ro o t
and
O ur Bridg e
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.