ZyXEL Communications MES-2110 User Manual page 94

Chapter 11 Bridge
Table 26 Configuration > Bridge Menu > RSTP System Config
LABEL
Forward Delay (sec)
Max age (sec)
Undo
Refresh
Apply
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DESCRIPTION
This is the maximum time (in seconds) the MES-2110 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 is the maximum time (in seconds) the MES-2110 can wait
without receiving a BPDU before attempting to reconfigure. All
MES-2110 ports (except for designated ports) should receive
BPDUs at regular intervals. Any port that ages out STP
information (provided in the last BPDU) becomes the designated
port for the attached LAN. If it is a root port, a new root port is
selected from among the MES-2110 ports attached to the
network. The allowed range is 6 to 40 seconds.
Click this to restore your last saved settings.
Click this to reset the data for the field(s).
Click Apply to save your changes to the MES-2110's run-time
memory. The MES-2110 loses these changes if it is turned off or
loses power, so use the Save Settings link in the navigation
panel to save your changes to the non-volatile memory when you
are done configuring.
MES-2110 User's Guide