ZyXEL Communications MES3500-24, Руководство пользователя

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Chapter 13 Spanning Tree Protocol
MES3500-24/24F User’s Guide
130
13.5 Rapid Spanning Tree Protocol Status
Click Advanced Application > Spanning Tree Protocol in the navigation panel to display the
status screen as shown next. See
Section 13.1 on page 122 for more information on RSTP.
Note: This screen is only available after you activate RSTP on the Switch.
Figure 60
Advanced Application > Spanning Tree Protocol > Status: RSTP
The following table describes the labels in this screen.
Path Cost Path cost is the cost of transmitting a frame on to a LAN through that port. It is
recommended to assign this value according to the speed of the bridge. The slower the
media, the higher the cost - see
Table 25 on page 122 for more information.
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 Save link on the top navigation
panel to save your changes to the non-volatile memory when you are done configuring.
Cancel Click Cancel to begin configuring this screen afresh.
Table 28
Advanced Application > Spanning Tree Protocol > RSTP (continued)
LABEL DESCRIPTION
Table 29
Advanced Application > Spanning Tree Protocol > Status: RSTP
LABEL DESCRIPTION
Configuration Click Configuration to specify which STP mode you want to activate. Click
RSTP to edit RSTP settings on the Switch.
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 the bridge priority plus
the 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. The root bridge determines Hello Time, Max Age and
Forwarding Delay.
Max Age (second) This is the maximum time (in seconds) a switch can wait without receiving a
configuration message before attempting to reconfigure.