User Manual
Table Of Contents
- Copyright
- Trademarks
- Product Configuration
- Introduction
- Overview
- Operating Mode Descriptions
- Setup
- Settings
- Preparing the Utility Software
- Utility Software Settings
- Setting Descriptions
- To Register or Set Up a New Access Point
- To Edit Settings for an Existing Access Point
- To Use Data scramble Functions for Better Security
- To Use SNMP Agent Functions
- To Use Spanning Tree
- To Access the APL from a Different Router
- Spanning Tree Algorithms (STA)
- What is an STA?
- STA Parameters
- Sample STA Application
- _
- All settings other than bridge priority settings are identical.
- The root bridge is determined by the priority settings of each ...
- The designated bridge for each LAN segment is determined by roo...
- The designated port for each bridge is determined by the design...
- The root port of each bridge is determined by its path cost to ...
- Ports that are neither designated ports nor root ports are back...
- _
- SNMP Agent Functions
- Troubleshooting
- Appendix
- Product Specifications
- Input/Output Interface
- Glossary
- _
- IEEE (Institute of Electrical Electronics Engineers)
- IEEE 802.11/ IEEE 802.11b
- MIB (Management Information Base)
- SNMP (Simple Network Management Protocol)
- Diversity
- Router
- Bridge
- LAN (Local Area Network)
- RSSI (Receive Signal Strength Indication)
- Spectrum diffusion transmission
- DS (Direct Sequence)
- CSMA/CA (Carrier Sense Multiple Access with Collision Avoidanc...
- Hidden Terminal Problem
- RTS (Request to Send)
- Roaming
- Peer-To-Peer
- AP (Access Point)
- User Unit
- ESS ID (Extended Service Set ID)
- Channel
- _
- Index
Spanning Tree Algorithms (STA)
FX-DS110-APL
41
Port Level
Root Port
On each bridge, the port having the lowest path cost to the root
bridge is called the root port.
If more than one port has the same path cost, the port with the
smallest port identifier (port priority and assigned port ID) is the
root port.
Designated Port
The port on the designated bridge connected to the LAN segment is
called the designated port.
On the bridge, packages are only transferred on the port that is the
root port, and other ports are blocked.
Port Priority
Set in the range 0 to 255. The lower the number, the higher the
priority level.
Path Cost
The port cost on a path is called the path cost, and is set as follows
when this product is initialized. This value is based on IEEE
standard 802.1D, but can be changed.
･ 10Mbps LAN segment 100