Hirschmann RS20 User Manual page 85

Spanning Tree
Parameter Meaning
Admin Edge Only activate this setting when a
Port terminal device is connected to the
port (administrative: default setting).
Then the port immediately has the
forwarding status after a link is set
up, without first going through the
STP statuses. If the port still
receives an STP-BPDU, the device
blocks the port and clarifies its STP
port role. In the process, the port
can switch to a different status, e.g.
forwarding, discarding,
learning.
Deactivate the setting when the port
is connected to a bridge. After a link
is set up, the port then goes through
the STP statuses first before taking
on the forwarding status, if
applicable.
This setting applies to all MSTIs.
Oper Edge Port The device sets the "Oper Edge
(read only) Port" condition to true if it has not
received any STP-BPDUs, i.e. a
terminal device is connected. It sets
the condition to false if it has
received STP-BPDUs, i.e. a bridge
is connected.
This condition applies to all MSTIs.
Auto Edge Port The device only considers the Auto
Edge Port setting when the Admin
Edge Port parameter is deactivated.
If Auto Edge Port is active, after a
link is set up the device sets the port
to the forwarding status after
1.5 · Hello Time (in the default
setting 3 s).
If Auto Edge Port is deactivated, the
device waits for the Max Age
instead (in the default setting 20 s).
This setting applies to all MSTIs.
Table 14: Port-related RSTP settings and displays
UM Redundancy Configuration L2E
Release 7.1 12/2011
5.6 The Rapid Spanning Tree
Possible Values
active (box
selected), inactive
(box empty)
true, false
active (box
selected),
inactive (box
empty)
Protocol
Default Setting
inactive
-
active
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