W
EB
C
ONFIGURATION
S
OFTWARE
R
EVISED
2018-09-21
RSTP
D
RAWING
N
O
. LP0991-G
2-103
N-Tron
®
Series NT24K
®
Software Manual
2.24
RSTP
2.24.1
Bridge
The Bridge dialog window displays the RSTP information for the RSTP Root Bridge and for the RSTP Bridge on
this switch.
Note:
Bypass Relay models affect the implementation of this protocol. For more information, see section
1.2.11 Bypass Relay (BR) on page 5
.
Root Bridge:
This is the identity and parameters of the RSTP Root Bridge.
Root Identifier - Priority:
This field indicates the priority of the Root Bridge.
Root Identifier - MAC:
The unique MAC address of the Root Bridge is shown here.
Hello Time (Sec):
This field indicates the time interval, in seconds, between the transmission of
configuration BPDUs by designated ports.
Forward Delay (Sec):
This field shows the time spent, in seconds, by legacy STP Bridges in transitioning
Root and designated ports to forwarding. This delays port transitions until other bridges have received
spanning tree information.
Max Age (Sec):
For RSTP, this is the maximum time, in seconds, that a bridge will wait for configuration
BPDUs before deciding it is no longer connected to the root bridge.
Root Path Cost:
The cost of the path to the Root Bridge via the Root Port of this bridge.
Root Port:
The Root Port of this Bridge. The Root Port provides the lowest cost path from this bridge to
the Root Bridge.
Bridge:
This is the configuration of the RSTP bridge on this switch.
VLAN:
RSTP will operate on all ports of this VLAN. BPDUs will be transmitted with or without VLAN tags
depending on the settings for this VLAN. This should be a valid VLAN ID. The default value for this field is
VLAN 1.
Bridge Identifier Priority:
This field indicates the Bridge priority. The range is 0 - 61440. The default value
is 32768.