User manual

Chapter 13 Spanning Tree Protocol
GS2210 Series User’s Guide
127
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 121 for more information on RSTP.
Note: This screen is only available after you activate RSTP on the Switch.
Figure 104 Advanced Application > Spanning Tree Protocol > Status: RSTP
The following table describes the labels in this screen.
Priority Configure the priority for each port here.
Priority decides which port should be disabled when more than one port forms a loop in a
switch. Ports with a higher priority numeric value are disabled first. The allowed range is
between 0 and 255 and the default value is 128.
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 45 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 48 Advanced Application > Spanning Tree Protocol > RSTP (continued)
LABEL DESCRIPTION
Table 49 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 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. The root bridge determines Hello Time, Max Age and Forwarding Delay.