Download EH7510 User Manual

Atop Industrial Managed Ethernet Switch
EH7510
User Manual V 1.0
Table 2.27
Label
Spanning Tree
Force Version
Priority
Maximum Age
Hello Time
Forward Delay
Root Priority
Root MAC Address
Root Path Cost
Root Port
Root Maximum Age
Root Hello Time
Root Forward Delay
Topology Changes
Last
changes
Topology
Description
Choose to enable or disable Spanning Tree.
Select STP or RSTP.
Configures the bridge priority in the range of 0 ~
61440.The switch with lower bridge priority has
more chance to become a root bridge.
If a device is not the root and it doesn’t receive
hello message in “Max. Age”, it will reconfigure
itself as a root.
See note below for “hello message”.
Range from 6 to 40 seconds.
Amount of time the root waits between sending
hello messages. See note below.
Range from 1 to 10 seconds.
Configures the amount of time to wait before
checking to see if the device should change
from the learning state to the forwarding state.
Less delay time means changing state quickly.
Range from 4 to 30 seconds.
Indicates the current root priority value.
Indicates the current root MAC address.
Indication of cost. Higher cost means less
suitability for Spanning Tree topology.
Indicates the port that receives the best BPDU.
See note below.
Indicates the current root maximum ageing time
value.
Indicates the current hello time value.
Indicates the current root forward delay time
value.
Indicates the time which topology change is
occurred.
Indicates the working time since last Topology
changes occurred.
Factory Default
Disabled
RSTP
32768
20
2
15
Dependant
Dependant
Dependant
Dependant
Dependant
Dependant
Dependant
Dependant
Dependant
*NOTE
- “Hello” Message: The root of the Spanning Tree topology periodically sends out a “hello”
message to other devices on the network to check if the topology is healthy.
- BPDU: In STP, to ensure that each bridge has enough information, the bridges use
special data frames called Bridge Protocol Data Units (BPDU) to exchange information
about bridge IDs and root path costs.
48