Table 223: show spanning-tree bridge Output Fields
(continued)
Field Description
Field Name
Calculated cost to reach the root bridge from the bridge where the
command is entered.
Root cost
Interface that is the current elected root port for this bridge.
Root port
Bridge ID of the elected MSTP regional root bridge.
CIST regional root
Calculated cost to reach the regional root bridge from the bridge
where the command is entered.
CIST internal root cost
Configured number of seconds between transmissions of
configuration bridge protocol data units (BPDUs).
Hello time
Configured maximum expected arrival time of hello bridge protocol
data units (BPDUs).
Maximum age
Configured time an STP bridge port remains in the listening and
learning states before transitioning to the forwarding state.
Forward delay
Configured maximum number of hops a BPDU can be forwarded
in the MSTP region.
Hop count
Number of elapsed seconds since the most recent BPDU was
received.
Message age
Total number of STP topology changes detected since the routing
device last booted.
Number of topology
changes
Number of elapsed seconds since the most recent topology change.
Time since last topology
change
Locally configured bridge ID. The bridge ID consists of a configurable
bridge priority and the MAC address of the bridge.
Bridge ID (Local)
System identifier.
Extended system ID
Bridge ID of the elected MSTP regional root bridge.
MSTI regional root
show spanning-tree
bridge routing-instance
user@host>
show spanning-tree bridge routing-instance vs1 detail
STP bridge parameters
Routing instance name : vs1
show spanning-tree
bridge routing-instance
Enabled protocol : MSTP
STP bridge parameters for CIST
Root ID : 32768.00:13:c3:9e:c8:80
Root cost : 0
Root port : xe-10/2/0
CIST regional root : 32768.00:13:c3:9e:c8:80
CIST internal root cost : 22000
Hello time : 2 seconds
Copyright © 2010, Juniper Networks, Inc.
1640
Complete Software Guide for Junos
®
OS for EX Series Ethernet Switches, Release 10.3
Summary of Contents for JUNOS OS 10.3 - SOFTWARE
Page 325: ...CHAPTER 17 Operational Mode Commands for System Setup 229 Copyright 2010 Juniper Networks Inc ...
Page 1323: ...CHAPTER 56 Operational Mode Commands for Interfaces 1227 Copyright 2010 Juniper Networks Inc ...
Page 2841: ...CHAPTER 86 Operational Commands for 802 1X 2745 Copyright 2010 Juniper Networks Inc ...
Page 3367: ...CHAPTER 113 Operational Mode Commands for CoS 3271 Copyright 2010 Juniper Networks Inc ...
Page 3435: ...CHAPTER 120 Operational Mode Commands for PoE 3339 Copyright 2010 Juniper Networks Inc ...
Page 3529: ...CHAPTER 126 Operational Mode Commands for MPLS 3433 Copyright 2010 Juniper Networks Inc ...