Table 7: Show Spanning-Tree Bridge Output Fields - Juniper EX9200 Features Manual

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Table 7: show spanning-tree bridge Output Fields

Field Name
Routing instance name
Enabled protocol
Root ID
Root cost
Root port
CIST regional root
CIST internal root cost
Hello time
Maximum age
Forward delay
Hop count
Message age
Number of topology
changes
Time since last topology
change
Bridge ID (Local)
Extended system ID
MSTI regional root
Field Description
Name of the routing instance under which the bridge is configured.
Spanning Tree Protocol type enabled.
Bridge ID of the elected spanning-tree root bridge. The bridge ID
consists of a configurable bridge priority and the MAC address of
the bridge.
Calculated cost to reach the root bridge from the bridge where the
command is entered.
Interface that is the current elected root port for this bridge.
Bridge ID of the elected MSTP regional root bridge.
Calculated cost to reach the regional root bridge from the bridge
where the command is entered.
Configured number of seconds between transmissions of
configuration BPDUs.
Configured maximum expected arrival time of hello bridge protocol
data units (BPDUs).
How long an STP bridge port remains in the listening and learning
states before transitioning to the forwarding state.
Configured maximum number of hops a BPDU can be forwarded
in the MSTP region.
Number of elapsed seconds since the most recent BPDU was
received.
Total number of STP topology changes detected since the routing
device last booted.
Number of elapsed seconds since the most recent topology change.
Locally configured bridge ID. The bridge ID consists of a configurable
bridge priority and the MAC address of the bridge.
System identifier.
Bridge ID of the elected MSTP regional root bridge.
Chapter 3: RSTP Monitoring Commands
63