KTI Networks KGD-802 User Manual page 66

RSTP Port Status
Port/Group
VLAN Id
Path Cost
Edge Port
P2p Port
Protocol
Port State
The above status example shows three STP operate in three different VLANs as follows:
VLAN 1 members: P1, P2, P3, P4, P5, P6, P7, P8
VLAN 2 members: P3, P4
VLAN 3 members: P7, P8
P3 PVID = VLAN 2
P4 PVID = VLAN 2
P7 PVID = VLAN 3
P8 PVID = VLAN 3
P3 and P4 connect to same switch as an STP redundant link associated to VLAN 2.
P7 and P8 connect to another switch as an STP redundant link associated to VLAN 3.
The switch supports MSTP (Multiple STP) over multiple VLANs. Each VLAN has individual STP
mechanism operating independently.
Description
Port number
The associated VLAN to which the RSTP port belongs (PVID)
The path cost of the RSTP port
Is the port an edge port?
Yes - The port operates in full duplex.
The protocol version configured for the port - RSTP or STP
Forwarding - A port receiving and sending data, normal operation. STP
still monitors incoming BPDUs that would indicate it should return to the
blocking state to prevent a loop.
Blocking - A port that would cause a switching loop, no user data is sent
or received but it may go into forwarding mode if the other links in use
were to fail and the spanning tree algorithm determines the port may
transition to the forwarding state. BPDU data is still received in blocking
state.
Listening - The switch processes BPDUs and awaits possible new
information that would cause it to return to the blocking state.
Learning - While the port does not yet forward frames (packets) it does
learn source addresses from frames received and adds them to the filtering
database (switching database)
Non-STP - RSTP is disabled.
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