Multiple Rapid Spanning Tree Protocol Status - ZyXEL Communications GS-3012 Series User Manual

Table 29 MRSTP: Configuration (continued)
LABEL
Forwarding Delay
Port
*
Active
Priority
Path Cost
Tree
Apply
Cancel

11.6 Multiple Rapid Spanning Tree Protocol Status

Click Advanced Application, Spanning Tree Protocol in the navigation panel to display the
status screen as shown next. See
Note: This screen is only available after you activate MRSTP on the switch.
GS-3012/GS-3012F User's Guide
DESCRIPTION
This is the maximum time (in seconds) a switch will wait before changing states.
This delay is required because every switch must receive information about
topology changes before it starts to forward frames. In addition, each port needs
time to listen for conflicting information that would make it return to a blocking state;
otherwise, temporary data loops might result. The allowed range is 4 to 30
seconds.
As a general rule:
Note: 2 * (Forward Delay - 1) >= Max Age >= 2 * (Hello Time + 1)
This field displays the port number.
Settings in this row apply to all ports.
Use this row only if you want to make some settings the same for all ports. Use this
row first to set the common settings and then make adjustments on a port-by-port
basis.
Note: Changes in this row are copied to all the ports as soon as you
make them.
Select this check box to activate STP on this port.
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 is the cost of transmitting a frame on to a LAN through that port. It is
assigned according to the speed of the bridge. The slower the media, the higher
the cost - see Table 24 on page 104
Select which STP tree configuration this port should participate in.
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.
Click Cancel to reset the fields.
Section 11.1 on page 103
Chapter 11 Spanning Tree Protocol
for more information.
for more information on MRSTP.
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