What is VSTP in networking?
What is VSTP in networking?
VLAN Spanning Tree Protocol (VSTP) enables Juniper Networks switches to run one or more Spanning Tree Protocol (STP) or Rapid Spanning Tree Protocol (RSTP) instances for each VLAN on which VSTP is enabled.
What is Pvst?
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.
What is Mstp in networking?
Multiple Spanning Tree Protocol (MSTP) is a protocol that creates multiple spanning trees (instances) for each Virtual LAN (VLAN) on a single physical network.
What is difference between STP and RSTP?
STP has three port roles (i.e., Root Port, Designated Port, Blocked Port). RSTP has four-port roles (i.e., Root Port, Designated Port, Alternate Port, Backup Port). 4. STP has five port states (i.e., Forwarding, Learning, Listening, Blocking, Disabled).
What is the purpose of STP?
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.
What is Pvrst?
PVRST is an enhancement of RSTP, which works in conjunction with VLANs to provide better control over traffic in the network. A separate spanning tree is maintained for each active VLAN in the network, providing: Load balancing through multiple instances of the spanning tree.
What is the benefit of Pvst+?
PVST+ reduces the CPU cycles for all the switches in the network. PVST+ allows the root switch location to be optimized per VLAN. PVST+ automatically selects the root bridge location, to provide optimized bandwidth usage.
What is RSTP and MSTP?
RSTP provides rapid convergence of the spanning tree. MSTP, which uses RSTP to provide rapid convergence, enables VLANs to be grouped into a spanning-tree instance, provides for multiple forwarding paths for data traffic, and enables load balancing.
Why do we need MSTP?
An MSTP region allows a group of bridges to be modeled as a single bridge. An MSTP region contains multiple spanning-tree instances (MSTIs). MSTIs provide different paths for different VLANs. This functionality facilitates more efficient load sharing across redundant links.
Why is RSTP preferred than STP?
RSTP provides faster convergence than 802.1D STP when topology changes occur. RSTP defines three port states: discarding, learning, and forwarding and five port roles: root, designated, alternate, backup, and disabled.
What is STP and its types?
STP—Defined in IEEE 802.1D, this is the original standard that provided a loop-free topology in a network with redundant links. Also called Common Spanning Tree (CST), it assumed one spanning-tree instance for the entire bridged network, regardless of the number of VLANs.
What is VTP and STP?
VLAN Trunking Protocol (VTP) is a Cisco proprietary protocol that propagates VLAN on the whole local area network. VTP carries VLAN information to all the switches in a VTP domain. Spanning Tree Protocol (STP) is a network protocol that builds a loop-free logical topology for Local Area Networks.