TSW202 Spanning Tree

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The information in this page is updated in accordance with firmware version .


The Spanning Tree Protocol (STP) is a network protocol that builds a loop-free logical topology for Ethernet networks. STP's primary function is to prevent loops in Ethernet networks. Ethernet loops can occur when there are redundant paths between network switches, and if not managed properly, they can lead to broadcast storms and network congestion. Spanning tree also allows a network design to include backup links providing fault tolerance if an active link fails.

Spanning Tree Settings

Networking tswos manual spanning tree v2.png

Field Value Description
Mode Disabled | STP | RSTP; default: RSTP STP - provides a single path between any two end stations, avoiding and eliminating loops. RSTP - detects network topologies to provide faster convergence of the spanning tree. Disabled - turns off spanning tree protocol.
Priority Integer [0..61440]; default: 32768 STP priority. The lower the number, the higher the priority.
Max age Integer [6..40]; default: 20 Maximum expected arrival time of hello bridge protocol data units (BPDUs).
Forward delay Integer [4..30]; default: 15 How long an STP bridge port remains in the listening and learning states before transitioning to the forwarding state.
Hello time Integer [1..10]; default: 2 Number of seconds between transmissions of configuration BPDUs.
Hold count Integer [1..10]; default: 6 The number or BPDUs that can be transmitted during every hello time period ranges from a minimum of one and a maximum of not more than defined value.
Max hops Integer [6..40]; default: 20 Maximum number of bridge hops allowed in the network.