Hirschmann RS20 User Manual page 86

Spanning Tree
Parameter Meaning
Oper Point-to- The device sets the "Oper point-to-
Point (read only) point" condition to true if this port
has a full duplex condition to an STP
device. Otherwise it sets the
condition to false (e.g. if a hub is
connected).
The point-to-point connection
makes a direct connection between
2 RSTP devices. The direct,
decentralized communication
between the two bridges results in a
short reconfiguration time.
This condition applies to all MSTIs.
Received bridge Displays the remote bridge ID from
ID (read only) which this port last received an STP-
BPDU.
Received path Displays the path costs of the
costs (read only) remote bridge from its root port to
the CIST root bridge.
Received port Displays the port ID at the remote
ID (read only) bridge from which this port last
received an STP-BPDU.
Table 14: Port-related RSTP settings and displays
a
– These columns show you more detailed information than that available
up to now:
For designated ports, the device displays the information for the STP-
BPDU last received by the port. This helps with the diagnosis of possible
STP problems in the network.
For the port roles alternative, back-up, master and root, in the stationary
condition (static topology), this information is identically to the designated
information.
If a port has no link, or if it has not received any STP-BDPUs for the
current MSTI, the device displays the values that the port would send as
a designated port.
86
a
a
a
5.6 The Rapid Spanning Tree
Possible Values
true, false
The device determines
this condition from the
duplex mode:
FDX: true
HDX: false
Bridge identification
(format ppppp /
mm mm mm mm mm
mm)
0-200,000,000
Port ID,
format pn nn,
with p: port priority /
16,
nnn: port No., (both
hexadecimal)
UM Redundancy Configuration L2E
Protocol
Default Setting
-
-
-
Release 7.1 12/2011