System information

Configuring the Spanning Tree Protocol
Configuring STP Status and Global Settings
Cisco Small Business 200 Series Smart Switch Administration Guide 114
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The switch supports the following Spanning Tree Protocol versions:
• Classic STP provides a single path between any two end stations, avoiding
and eliminating loops.
• Rapid STP (RSTP) detects network topologies to provide faster
convergence of the spanning tree. This is most effective when the network
topology is naturally tree-structured, and therefore faster convergence
might be possible. RSTP is enabled by default.
Although Classic STP is guaranteed to prevent Layer 2 forwarding loops in
a general network topology, there might be an unacceptable delay before
convergence. This means that each bridge or switch in the network needs
to decide, if it should actively forward traffic or not on each of its ports.
NOTE The 200 Series switches do not support MSTP.
Configuring STP Status and Global Settings
The STP Status and Global Settings Page contains parameters for enabling STP or
RSTP.
Use the STP Interface Settings Page and RSTP Interface Settings Page to
configure each mode, respectively.
To set STP status and global settings:
STEP 1 Click Spanning Tree > STP Status and Global Settings. The STP Status and
Global Settings Page
displays.
STEP 2 Enter the parameters:
Global Settings:
• Spanning Tree State—Enable or disable STP on the switch.
• STP Operation Mode—Select an STP mode.
• Bridge Protocol Data Unit (BPDU) Handling—Select how BPDU packets
are managed when STP is disabled on the port or the switch. BPDUs are
used to transmit spanning tree information.
- Filtering—Filters BPDU packets when Spanning Tree is disabled on an
interface.