iES20G/iES18G
Series User’s Manual
iS5 Communications Inc.
42
Priority (0-61440)
A value used to identify the root bridge. The bridge with the lowest
value (highest priority) is selected as the root. If the value changes, the
switch must be rebooted. The value must be a multiple of 4096
according to the protocol standard.
Max Age (6-40)
The number of seconds for a bridge to wait without receiving Spanning
Tree Protocol configuration messages before reconfiguration. Enter a
value between 6 and 40.
Hello Time (1-10)
The time that the Control Switch sends out the BPDU (Bridge Protocol
Data Unit) packet to verify the current status of RSTP. Enter a value
between 1 and 10.
Forwarding Delay Time
(4-30)
The number of seconds a port has to wait before changing from
learning/listening state to forwarding state. Enter a value between 4
and 30.
Path Cost (1-200000000)
The Path Cost to the other bridge from the transmitting bridge at a
specified port. Enter a number 1 to 200000000.
Priority (0-240)
Enter which port should be blocked by setting the priority on the LAN.
Enter a number between 0 and 240. The value of priority must be a
multiple of 16.
P2P
Some of the rapid state transactions that are possible within RSTP are
dependent upon whether the port concerned can only be connected to
one other bridge (i.e., It is served by a point-to-point LAN segment), or,
it can be connected to two or more bridges (i.e., It is served by a
shared medium LAN segment). This function allows the P2P status of
the link to be manipulated administratively. True means P2P is enabled.
False means P2P is disabled.
Edge
Admin Edge is the port which is directly connected to end stations. It
cannot create a bridging loop on the network. To configure the port as
an edge port, set the port to “
True
”.
Apply
Click “
Apply
” to activate the configurations.
NOTE:
Follow this rule to configure the MAX Age, Hello Time, and Forward Delay Time:
2 x (Forward Delay Time value –1) ≥ Max Age value ≥ 2 x (Hello Time value +1)
RSTP Information
Show RSTP algorithm result at this table.
