What is Per VLAN Rapid Spanning Tree?
Per-VLAN Spanning Tree (PVST+)—PVST+ is a Cisco enhancement of STP that provides a separate 802.1D spanning-tree instance for each VLAN configured in the network. Rapid Spanning Tree Protocol (RSTP)—RSTP is defined in IEEE 802.1w. It is an evolution of STP that provides faster convergence than STP.
Why do we use per VLAN in Spanning Tree?
Per VLAN Spanning Tree (PVST) is a Cisco proprietary protocol that allows a Cisco device to have multiple spanning trees. The Cisco device can interoperate with spanning trees on other PVST devices but cannot interoperate with IEEE 802.1Q devices.
How do I enable Pvst+?
Enabling PVST+ in the WebUI In the Mobility Master node hierarchy, navigate to Configuration > Interfaces > VLANs and select a VLAN with one or more active interfaces in the VLANs table. In the Port Members table, select the More option. Expand the Spanning Tree section, and enable PVST mode. Click Submit.
What is the main benefit of using rapid Pvst+?
Rapid PVST+ (IEEE 802.1w) is an enhanced version of PVST+ and allows for faster spanning-tree calculations and convergence in response to Layer 2 topology changes. Rapid PVST+ defines three port states: discarding, learning, and forwarding, and provides multiple enhancements to optimize network performance.
What is spanning tree and why use spanning tree?
Spanning tree protocol (STP) is a Layer 2 network protocol used to prevent looping within a network topology. STP was created to avoid the problems that arise when computers compete for the ability to use the shared telecommunications path on a local area network ( LAN ). When too many computers try to send at the same time, overall network performance is affected and can bring all traffic to a near halt.
Should I enable spanning tree?
All switches from Cisco ship with Spanning Tree Protocol (STP) enabled by default, but if STP is misconfigured for any reason, you can easily enable it. To enable spanning tree, connect to your switch and type spanning-tree mode while in Global Configuration mode.
What is a spanning tree in a network?
The Spanning Tree Protocol (STP) is a network protocol that builds a loop-free logical topology for Ethernet networks.
What is spanning tree option?
The spanning tree protocol is a link-management protocol that provides path redundancy while preventing duplicate loops in a network. The spanning tree option is enabled or disabled on the network switch.