Juniper EX Series User Manual page 244

J-Web Application Package User Guide for EX Series Switches, Release 14.1X53-A1
Table 103: Summary of Spanning Tree Protocols Output Fields (continued)
Field
Hello time
Forward delay
Extended System ID
Inter Instance ID
Maximum age
Number of topology changes
Time since last topology change
NOTE: This option is supported only on
EX4300 switches.
Spanning Tree Interface Details
Interface Name
Port ID
Designated Port ID
Designated Bridge ID
Port Cost
Port State
Role
Spanning Tree Statistics of Interface
Interface
BPDUs Sent
224
Values
The time for which the bridge interface remains in the listening or learning state.
The time for which the bridge interface remains in the listening or learning state
before transitioning to the forwarding state.
The system ID.
An internally generated instance identifier.
Maximum age of received bridge protocol data units (BPDUs).
Total number of spanning-tree protocol topology changes detected since the
switch last booted.
Number of seconds elapsed since the last topology change.
Interface configured to participate in the spanning-tree protocol instance.
Logical interface identifier configured to participate in the spanning-tree protocol
instance.
Port ID of the designated port for the LAN segment to which the interface is
attached.
ID of the designated bridge to which the interface is attached.
Configured cost for the interface.
Spanning-tree protocol port state:
Forwarding (FWD)
Blocking (BLK)
Listening
Learning
Disabled
MSTP or RSTP port role, Designated (DESG), backup (BKUP), alternate (ALT),
or root.
Interface for which statistics is being displayed.
Total number of BPDUs sent.
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