Rapid Spanning Tree Protocol Status - ZyXEL Communications VES1724-56 User Manual

24-port temperature-hardened vdsl2 box dslam
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Table 58 Advanced Application > Spanning Tree Protocol > RSTP (continued)
LABEL
Forwarding Delay
Port
*
Active
Priority
Path Cost
Apply
Cancel

14.5 Rapid Spanning Tree Protocol Status

Click Advanced Application > Spanning Tree Protocol in the navigation panel to display the
status screen as shown next. See
Note: This screen is only available after you activate RSTP on the Switch.
Figure 94 Advanced Application > Spanning Tree Protocol > Status: RSTP
VES1724-56 User's Guide
DESCRIPTION
This is the maximum time (in seconds) the 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 RSTP 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
recommended to assign this value according to the speed of the bridge. The slower the
media, the higher the cost-see
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 begin configuring this screen afresh.
Section 14.1 on page 160
Chapter 14 Spanning Tree Protocol
Table 55 on page 160
for more information.
for more information on RSTP.
167

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