Is Spanning Tree Protocol still used?
Is Spanning Tree Protocol still used?
Spanning Tree Protocol (STP) is dead, or at least it should be. STP still only has one focal point (root) and can only have one forwarding path toward that one device. Yes, we can use technologies like EtherChannel to help hide portions of the topology for STP, but STP does NOT do multipath forwarding!
What is the purpose of the Spanning Tree Protocol STP?
The Spanning-Tree Protocol (STP) creates one path through a switch network in order to prevent Layer 2 loops.
What does Spanning Tree do Cisco?
The Spanning Tree Protocol (STP) is a network protocol that builds a loop-free logical topology for Ethernet networks. The basic function of STP is to prevent bridge loops and the broadcast radiation that results from them.
Why is RSTP faster than STP?
The STP process to determine network state transitions is slower than the RSTP process because it is timer-based. A device must reinitialize every time a topology change occurs. RSTP converges faster because it uses a handshake mechanism based on point-to-point links instead of the timer-based process used by STP.
What can I use instead of STP?
The two most often discussed alternatives to STP are Shortest Path Bridging (SPB) and Transparent Interconnect of Lots of Links (TRILL). HP is an example of a vendor that appears to be equally committed to both alternatives.
Why is Rstp faster than STP?
What is STP and its types?
1. 802.1D – This is also known as CST (Common Spanning Tree). It is a spanning tree standard developed by IEEE which elects only one root bridge per whole topology.
How do I change spanning tree mode?
Step 3 – spanning-tree mode
- switch>enable – It is used to enter privileged mode.
- switch#configure terminal – It is used to enter the global configuration mode.
- switch(config)#spanning-tree mode {pvst | rapid-pvst} – We use this command to configure the Spanning Tree mode to use.
What is the advantage of using RSTP as compared to STP?
Advantages of RSTP RSTP, along with its predecessor STP, was developed for the purpose of preventing detrimental loops within a network. RSTP prevents network loops by blocking redundant ports. A blocked port will still receive data, but will not send that data out to other devices on the network.
What are the spanning tree modes available on Cisco Catalyst 3550 switches?
Three spanning tree modes can be configured on Cisco switches as shown in the output below. SW1 (config)#spanning-tree mode? By default, Cisco Catalyst 3550 switches used to build this scenario have spanning tree enabled in pvst mode. PVST stands for Per-VLAN Spanning Tree Protocol and this mode runs an instance of IEEE 802.1d STP for each VLAN.
How does a spanning-tree root work in a bridge?
A bridge initially functions as the spanning-tree root until it exchanges BPDUs with other bridges. This exchange establishes which bridge in the network is the spanning-tree root. If there is only one bridge in the network, no exchange occurs, the forward-delay timer expires, and the interfaces move to the listening state.
How to perform spanning tree convergence in Linux?
The first step in spanning tree convergence involves electing the root switch. The switch with the lowest bridge ID wins the election. The standard bridge ID is an 8-byte value made up of a 2-byte priority and a 6-byte MAC address unique to that switch. You can use show spanning-tree bridge id command to find out the bridge ID of a switch.
What is the best configuration for STP interoperability between Cisco bridges?
Therefore, the best configuration for STP interoperability is to have the bridge STP feature enabled and VLANs not configured. Note When Cisco bridges are configured as workgroup bridges, they can operate with STP disabled and allow for associations with access points. However, this configuration is not technically a bridge-to-bridge scenario.
https://www.youtube.com/watch?v=akbcJtzL3U0
