What is Spanning Tree mode?
Spanning Tree Protocol (STP) is a Layer 2 protocol that runs on bridges and switches. The main purpose of STP is to ensure that you do not create loops when you have redundant paths in your network. Loops are deadly to a network.
What are the two types of spanning tree protocol?
Types of Spanning Tree Protocol (STP)
- 802.1D – This is also known as CST (Common Spanning Tree).
- Per VLAN Spanning Tree + (PVST+) – It is a spanning tree standard developed by Cisco for its devices which finds the root bridge per VLAN.
What is the difference between PVST+ and rapid PVST +?
“RSTP” stands for “Rapid Spanning Tree Protocol” while “PVST” does the same for “Per-VLAN Spanning Tree.” RSTP is an improvement of STP (Spanning Tree Protocol) in terms of being newer and faster. The RSTP is able to respond to changes in six seconds.
What is spanning-tree with example?
A minimum spanning tree is a special kind of tree that minimizes the lengths (or “weights”) of the edges of the tree. An example is a cable company wanting to lay line to multiple neighborhoods; by minimizing the amount of cable laid, the cable company will save money. A tree has one path joins any two vertices.
What is Spanning Tree Protocol (STP) and how does it work?
Spanning Tree Protocol (STP) is standardized as IEEE 802.1D. As the name suggests, it creates a spanning tree within a mesh network of connected layer-2 bridges (typically Ethernet switches), and disables those links that are not part of the spanning tree, leaving a single active path between any two network nodes.
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.
Which problem does the Spanning Tree Protocol prevent?
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).
What is a spanning tree protocol hacker attack?
When a malicious user sends a STP message with a priority zero value thus making a new root bridge thus compromising the entire network is known as Spanning-Tree Protocol attack. It can be avoided by disabling spanning -tree function to the entire user interface.