Hirschmann RS20 Programming Manual page 105

Rapid Spanning Tree
Parameter Meaning
STP State En- Here you can turn RSTP on or off
able for this port. If you turn RSTP off for
this port while RSTP is globally en-
abled for the device, the device will
discard RSTP frames received on
this port.
Port State Displays the port state
Priority Here you enter the first byte of the
port identification.
Port Path Cost Enter the path costs to indicate pref-
erence for redundant paths. If the
value is "0", the Switch automatical-
ly calculates the path costs depend-
ing on the transmission rate.
Admin Edge If the parameter is set to „true", the
Port port will transition to the forwarding
state. If the port nevertheless re-
ceives a RSTP frame, it will transi-
tion to the blocking state and the
bridge will then determine the new
port role.
.If the parameter's value is „false",
the port remains in the blocked state
until the bridge has determined the
port role. Only after that will the port
transition to its final state.
Oper Edge Port Is „true" if no RSTP frames were
received, i. e., a terminal device that
sends no RSTP frames is connect-
ed to this port. Is „false" if RSTP
frames were received, i. e., no
terminal device but a bridge is
connected.
Auto Edge Port The setting for Auto Edge Port only
takes effect if the parameter Oper
Edge Port has been set to „false".
if Auto Edge Port is set to „true", the
port will transition to the forwarding
state within 1.5 * Hello Time
(3 seconds). If is is set to „false", it
will take 30 seconds until the edge
port forwards data frames.
Table 15: Port-related RSTP settings and displays
Redundanz L2P
Release 5.0 04/09
6.6 The Rapid Spanning Tree Protocol
Value range
on,
off
disabled,
forwarding,
discarding,
blocking,
learning
16 < n*16 < 240
0 - 200.000.000
true, false
true, false
true, false
Default setting
on
-
128
0
false
-
false
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