D-Link DES-3624 - Switch - Stackable User manual - Spanning Tree Algorithm
Stackable NWay Ethernet Switch User’s Guide
2. MAC address filtering The manual entry of specific
MAC addresses to be filtered from the network.
3. Filtering done by the Spanning Tree Protocol Can
filter packets based on topology, making sure that signal
loops don’t occur.
4. Filtering done for VLAN integrity. Packets from a
member of a VLAN (VLAN 2, for example) destined for a
device on another VLAN (VLAN 3) will be filtered.
Spanning Tree Algorithm
The Spanning Tree Algorithm (STA) in the Switch allows you to
create alternative paths (with multiple switches or other types
of bridges) in your network. These backup paths are idle until
the Switch determines that a problem has developed in the
primary paths. When a primary path is lost, the switch
providing the alternative path will automatically go into service
with no operator intervention. This automatic network
reconfiguration provides maximum uptime to network users.
The concept of the Spanning Tree Algorithm is a complicated
and complex subject and must be fully researched and
understood. Please read the following before making any
changes.
♦ Network loop detection and prevention With STA,
there will be only one path between any two LANs. If
there is more than one path, forwarded packets will loop
indefinitely. STA detects any looped path and selects the
path with the lowest path cost as the active path, while
blocking the other path and using it as the backup path.
♦ Automatic topology re-configuration When the path
for which there is a backup path fails, the backup path
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Switch Management Concepts