WebView Switches
Spanning Tree Tab - Global Settings
Spanning Tree Protocol (STP) provides tree topography for any bridge arrangement. STP eliminates loops by providing one path between end stations on a network.
Loops occur when alternate routes exist between hosts. Loops in an extended network can cause bridges to forward traffic indefinitely, resulting in increased traffic and reducing network efficiency.
The Switch supports the following Spanning Tree versions:
Classic STP. This version provides a single path between end stations, avoiding and eliminating loops.
Rapid STP (RSTP). This version is supported on the Gigabit Ethernet Switches ONLY. This detects and uses network topologies that provide faster convergence of the spanning tree, without creating forwarding loops. If RSTP is enabled, but the neighboring device is STP enabled, the local device uses STP.
Multiple STP (MSTP). This version is supported on the Gigabit Ethernet Switches ONLY. This provides full connectivity for packets allocated to any VLAN. Multiple STP is based on the RSTP. In addition, Multiple STP transmits packets assigned to different VLANs through different MST regions. MST regions act as a single bridge if MSTP is enabled. However, if RSTP is enabled on a neighboring device, the local device uses STP, RSTP, and MSTP interoperability.
The Global Settings screen contains the following fields:
Spanning Tree State. Enables or disables STP, Rapid STP, or MSTP on the Switch.
STP Operation Mode. Available on the Gigabit Ethernet Switches ONLY. Indicates the STP mode by which STP is enabled on a Gigabit Ethernet Switch. The possible field values are:
Classic STP - Enables Classic STP. This is the default value.
Rapid STP - Enables Rapid STP.
Multiple STP - Enables Multiple STP.
BPDU Handling. Determines how BPDU packets are managed when STP is disabled. BPDUs are used to transmit spanning tree information. The possible field values are:
Filtering - Filters BPDU packets when spanning tree is disabled. This is the default value.
Flooding - Floods BPDU packets when spanning tree is disabled.
Chapter 5: Using the
NOTE: Spanning Tree Protocol (STP) is not supported on the SRW2016 or SRW2024 Switches.
NOTE: Rapid STP and Multiple STP are available on the SRW2048 Switches ONLY.
Figure
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Spanning Tree Tab - Global Settings
