Brocade FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide User Manual
Page 265
CLI display of detailed STP information for ports (Continued)
TABLE 47
Field
Description
Active Timers
The current values for the following timers, if active:
• Message age - The number of seconds this port has been waiting for a hello message
from the root bridge.
• Forward delay - The number of seconds that have passed since the last topology change
and consequent reconvergence.
• Hold time - The number of seconds that have elapsed since transmission of the last
Configuration BPDU.
BPDUs Sent and
Received
The number of BPDUs sent and received on this port since the software was reloaded.
Displaying detailed STP information for a single port in a specific VLAN
Enter a command such as the following to display STP information for an individual port in a specific
VLAN.
device#show span detail vlan 1 ethernet 7/1
Port 7/1 is FORWARDING
Port - Path cost: 19, Priority: 128, Root: 0x800000e052a9bb00
Designated - Bridge: 0x800000e052a9bb00, Interface: 7, Path cost: 0
Active Timers - None
BPDUs - Sent: 29, Received: 0
Syntax: show span detail [ vlan vlan-id ethernet port]
Displaying STP state information for an individual interface
To display STP state information for an individual port, you can use the methods in
information for an entire device
on page 259 or
Displaying detailed STP information for each interface
on page 261. You also can display STP state information for a specific port using the following method.
To display information for a specific port, enter a command such as the following at any level of the CLI.
device#show interface ethernet 3/11
FastEthernet3/11 is up, line protocol is up
Port up for 1 hour 50 minutes 30 seconds
Hardware is FastEthernet, address is 0000.00a9.bb49 (bia 0000.00a9.bb49)
Configured speed auto, actual 100Mbit, configured duplex fdx, actual fdx
Member of L2 VLAN ID 1, port is untagged, port state is FORWARDING
STP configured to ON
, priority is level0, flow control enabled
mirror disabled, monitor disabled
Not member of any active trunks
Not member of any configured trunks
No port name
MTU 1518 bytes, encapsulation ethernet
5 minute input rate: 352 bits/sec, 0 packets/sec, 0.00% utilization
5 minute output rate: 0 bits/sec, 0 packets/sec, 0.00% utilization
1238 packets input, 79232 bytes, 0 no buffer
Received 686 broadcasts, 0 runts, 0 giants
0 input errors, 0 CRC, 0 frame, 0 ignored
529 multicast
918 packets output, 63766 bytes, 0 underruns
0 output errors, 0 collisions
The STP information is shown in bold type in this example.
Syntax: show interfaces [ ethernet port] | [loopback num] | [slot slot-num] | [ve num] | [brief]
Displaying detailed STP information for a single port in a specific VLAN
FastIron Ethernet Switch Platform and Layer 2 Switching Configuration Guide
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