ISON IS-RG528 Series, Web Configuration Tool Manual

Page: 37 / 122

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Priority Sets the spanning tree protocol priority. The lower the priority number, the more
significant the bridge becomes in protocol terms. Where two bridges have the same
priority, their MAC address is compared and the smaller MAC address is treated as the
most significant.
Range: 0~61440 in step 4096, Default is default=0x8000(32768).
Bridge
MaxAge
Sets the maximum age of received spanning tree protocol information before it is
discarded. This is used when the bridge is or is attempting to become the root bridge.
Range: 6~40 seconds, Default=20 seconds.
Bridge Hello Time Sets the time after which the spanning tree process sends notification of topology
changes to the root bridge. This is used when the bridge is or is attempting to become
the root bridge.
Range: 1~10 seconds, Default=2 seconds.
Bridge Forward Delay Sets the time that the bridge spends in listening or learning states when the bridge is or
is attempting to become the root bridge.
Range: 4~30 seconds, Default=15 seconds.
The maxage, hellotime and forwarddelay times are constrained as follows:
2 x (forwarddelay - 1) >= maxage
maxage >= 2 x (hel 1)
For example, the default settings are:
2 x (15 - 1) >= 20
20 >= 2 x (2 + 1)
BPDU Filter Deny/Flooding when STP is Disable.