Configuring Spanning Tree Protocol (STP) and IronSpan Features
December 2005 © Foundry Networks, Inc. 7 - 15
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.
Syntax: show span detail [vlan <vlan-id> [ethernet [<slotnum>/]<portnum> | <num>]
Displaying STP State Information for an Individual Interface
To display STP state information for an individual port, you can use the methods in “Displaying STP Information for
an Entire Device” on page 7-8 or “Displaying Detailed STP Information for Each Interface”. 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:
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.
Table 7.6: CLI Display of Detailed STP Information for Ports (Continued)
This Field... Displays...
FastIron SuperX Router(config)# 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
FastIron SuperX Router(config)# show interface ethernet 3/11
FastEthernet3/11 is up, line protocol is up
Hardware is FastEthernet, address is 00e0.52a9.bb49 (bia 00e0.52a9.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
To Next Page
Loading...
Need help?
General
