Specifications

show spanning-tree
246
Item Meaning Displayed information
Root Port Root port of the MST
instance
Displays the port number of the root port of the MST
instance. If the root port of the MST instance is a
link aggregation port, the link aggregation port list
and the channel group number are displayed.
A hyphen (-) is displayed if the Switch is the
regional root bridge of the MST instance.
Remaining Hops Number of remaining hops 0 to 40
Displays the remaining number of hops for BPDUs
that the regional root bridge of the MST instance
sends.
Bridge ID Bridge ID for the MST
instance of the Switch
Displays information about the bridge of the MST
instance of the Switch.
Priority Bridge priority 0 to 65535
The lower the value, the higher the priority.
MAC MAC address MAC address of the Switch
Regional Bridge Status Status of the bridge for the
MST instance of the Switch
Root: Root bridge
Designated: Designated bridge
Max Age Maximum valid time of
BPDUs sent from the MST
instance of the Switch
Displays the maximum valid time of BPDUs sent
from the MST instance bridge of the Switch.
Hello Time Interval for sending
BPDUs sent from the MST
instance of the Switch
Displays the interval for sending BPDUs that are
regularly sent from the MST instance bridge of the
Switch.
Forward Delay Time required for a state
transition of the MST
instance port on the Switch
Displays the time required for a state transition
when the state transition in the bridge of the MST
instance on the Switch is triggered by the timer.
Max Hops Maximum number of hops
in the MST instance of the
Switch
2 to 40
Displays the maximum number of hops for BPDUs
sent from the MST instance bridge of the Switch.
Port Information Information about the ports
of the MST instance
Displays information about the ports managed by
Multiple Spanning Tree. If no VLANs are allocated
to the MST instance, a response message is
displayed because there are no ports.
IF# Interface port number Number of the interface port whose information is to
be displayed
ChGr Channel group number Displays the number of the channel group for which
information is displayed.
This item is displayed if a port list is not specified or
if a port belonging to a channel group is specified in
the port list.
Up The port is in Up status. Indicates that the port is in Up status. If link
aggregation is used, this means that the channel
group is in Up status.