Port States - Hirschmann PowerMICE User Manual

Rapid Spanning Tree

1.2.2 Port states

According to the tree structure and the status of the selected connection
routes, RSTP assigns their statuses to the ports
Administrative
STP Port State
Bridge Port-State
DISABLED Disabled
DISABLED Enabled
BLOCKING Enabled
LISTENING Enabled
LEARNING Enabled
FORWARDING Enabled
MANUALFWD Enabled
Table 3: Relationship between the port-status values in the STP and RSTP
* the dot1d-MIB shows „Disabled"
** the dot1d-MIB shows „Blocked"
Meaning of the RSTP port states:
D
Disabled = port does not belong to the active topology
D
Discarding = no address learning in FDB and no data traffic apart from
sending and receiving
D
Learning = address learning active (FDB) and no data traffic apart from
BPDUs
D
Forwarding = address learning active (FDB) and sending and receiving
active from all frames (not only BPDUs)
D
ManualFwd = RSTP is disabled at this port. This mode prevents Spanning
Tree from changing the port state.
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1.2 The Rapid Spanning Tree Protocol
MAC RSTP Port-
Operational State
FALSE Discarding*
FALSE Discarding*
TRUE Discarding** Excluded (Alternate, Backup)
TRUE Discarding** Included (Root, Designated)
TRUE Learning
TRUE Forwarding
TRUE ManualFwd Excluded (Disabled)
Active Topology (Port Role)
Excluded (Disabled)
Excluded (Disabled)
Included (Root, Designated)
Included (Root, Designated)
Redundancy L3P
Release 3.0 01/07