Advanced Traffic Management Guide K/KA/KB.15.15

Shows the number of —Field
Times that Topology Change information is propagated (sent out) through the port to the rest of
the network. For a VLAN port running PVST (non-rapid), the counter is the number of times that
Topology
Changes Tx
a CFG or RST BPDU with the TC flag set is transmitted out of the port. This counter is maintained
on a per-VLAN per-port basis.
Times that Topology Change information is received from the peer port. For a VLAN port running
PVST (non-rapid), the counter is the number of times that a CFG or RST BPDU with the TC flag
set is received. This counter is maintained on a per-port per-VLAN basis.
Topology
Changes Rx
Times that the Topology Change acknowledgement is transmitted through the port (number of
CFG or RST BPDUs transmitted with the Topology Change Acknowledge flag set). This counter
is maintained on a per-port per-VLAN basis.
Topology
Change ACKs Tx
Times that the Topology Change acknowledgement is received on the port (number of CFG or
RST BPDUs received with the Topology Change Acknowledge flag set). This counter is maintained
on a per-VLAN basis.
Topology
Change ACKs Rx
Topology Change Notification BPDUs that are transmitted through the port. This counter is
maintained on a per-port basis.
TCN BPDUs Tx
Topology Change Notification BPDUs that are received on the port. This counter is maintained
on a per-port per-VLAN basis.
TCN BPDUs Rx
802.1D configuration BPDUs that are transmitted through the port. This counter is maintained on
a per-port per-VLAN basis.
CFG BPDUs Tx
802.1D configuration BPDUs that are received on the port. This counter maintained on a per-port
per-VLAN basis.
CFG BPDUs Rx
802.1w RST BPDUs that are transmitted through the port. This counter is maintained on a per-port
per-VLAN basis.
RST BPDUs Tx
802.1w RST BPDUs that are received on the port. This counter is maintained on a per-port
per-VLAN basis.
RST BPDUs Rx
RPVST+ event log messages
Log messageEvent
Spanning tree Protocol enabled/disabled on vlan vlan-idSTP enabled/disabled on a VLAN
VLAN vlan-id starved for a BPDU on port port number from
bridge name
Switch doesn't receive BPDUs from peer
on a particular VLAN and port
Blocking port-name on vlan vlan-id.Switch received BPDU with inconsistent
VLAN
Unblocking port-name on vlan vlan-idPort consistency
restored..
Inconsistency is restored
VLAN vlan-idroot changed from bridgepriorty:mac to
bridge priority:mac
Root port is changed on a VLAN
Received SSTP BPDU with bad TLV on port-number vlan-idSwitch received a BPDU with invalid TLV
The number of vlan-port instances exceeded the
recommended limit of num
The number of vlan-port instances
exceeds the recommended limit
RADIUS unable to assign port to VLAN vlan-id because
spanning-tree is running in RPVST+ mode
RADIUS subsystem tries to dynamically
change port VLAN assignments when
mode is RPVST
Troubleshooting an RPVST+ configuration 161