System information
Using the System Configuration Program
2-32
Displaying the Current STA for Ports
The parameters shown in the following figure and table are for port STA Information.
Alcatel OmniStack 6124
< Spanning Tree Port State > Unit 1 Port 1 - 12
Port Type Status Designated Designated Designated
Cost Bridge Port
----------------------------------------------------------------------
1 10/100TX NO LINK 19 32768.0010B54C1EB6 128.1
2 10/100TX NO LINK 19 32768.0010B54C1EB6 128.2
3 10/100TX NO LINK 19 32768.0010B54C1EB6 128.3
4 10/100TX NO LINK 19 32768.0010B54C1EB6 128.4
5 10/100TX NO LINK 19 32768.0010B54C1EB6 128.5
6 10/100TX NO LINK 19 32768.0010B54C1EB6 128.6
7 10/100TX NO LINK 19 32768.0010B54C1EB6 128.7
8 10/100TX NO LINK 19 32768.0010B54C1EB6 128.8
9 10/100TX NO LINK 19 32768.0010B54C1EB6 128.9
10 10/100TX NO LINK 19 32768.0010B54C1EB6 128.10
11 10/100TX NO LINK 19 32768.0010B54C1EB6 128.11
12 10/100TX NO LINK 19 32768.0010B54C1EB6 128.12
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Parameter Description
Type Shows port type as:
10/100TX: 10BASE-T / 100BASE-TX
100FX: 100BASE-FX
1000SX: 1000BASE-SX
1000LX: 1000BASE-LX
1000T: 1000BASE-T
GBIC: 1000BASE-X Transceiver
Status
Displays current state of this port within the Spanning Tree:
No Link No link has been established on this port.
Disabled Port has been disabled by the user or has failed diagnostics.
Blocking Port receives STA configuration messages, but does not forward
packets.
Listening Port will leave blocking state due to topology change, starts
transmitting configuration messages, but does not yet forward
packets.
Learning Port has transmitted configuration messages for an interval set by the
Forward Delay parameter without receiving contradictory information.
Port address table is cleared, and the port begins learning addresses.
Forwarding The port forwards packets, and continues learning addresses.
The rules defining port status are:
• A port on a network segment with no other STA-compliant bridging device is
always forwarding.
• If two ports of a switch are connected to the same segment and there is no other
STA device attached to this segment, the port with the smaller ID forwards packets
and the other is blocked.
• All ports are blocked when the switch is booted, then some of them change state
to listening, to learning, and then to forwarding.