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DUA1860-0AAA01
Spanning Tree Configuration 3-5
Hello Time:
Text Field. Enter the hello time for the bridge. The
hello time is the amount of time the bridge pauses between
sending spanning tree configuration C-BPDUs.
The hello time must be between 1 and 10 seconds and must be
lower than the maximum age. The default is 2 seconds.
Changes to this field are saved and take effect immediately.
Forward Delay:
Text Field. Enter the forward delay for the
bridge. The forward delay is a two-step timer that prevents a
bridge from forwarding packets until changes, if any, to the
topology are reported.
In a typical cycle the bridge is in the listening state for the amount
of time set by the forward delay, waiting to hear spanning tree
configuration C-BPDUs. If no changes are reported, the bridge
moves into the learning state. While in the learning state, the
bridge waits another forward delay interval to see if any
configuration C-BPDUs are transmitted that would change the
topology. If no C-BPDUs are received, the bridge then moves to
the forwarding state. The forward delay timer must be set
between 4 and 30 seconds. The default is 15 seconds.
Changes to this field are saved and take effect immediately.
Ageing:
Text Field. Enter the ageing time. The ageing time is the
amount of time a bridge allows each entry transmitted from a
source address to remain in the forwarding database. If the bridge
does not receive packets from a source address during the ageing
time interval, it discards packets from that source address and
relearns the network. The ageing time must be between 10 and
10000 seconds. The default is 300 seconds.
Changes to this field are saved and take effect immediately.
Spanning Tree Mode:
Text Field. This field shows the current
entry (before the
/
) and the entry that will take effect after
resetting the bridge (after the /). Enter
IEEE
for the IEEE 802.1d
version of the spanning tree, or enter
off
to disable the spanning
tree.