What is P2P in spanning tree?
P2P = It’s a full duplex link that connects to another device (Switch) with spanning tree. Shared = It’s an half duplex link that connects to another device (Switch) with spanning tree. The edge port concept is already well known to Cisco spanning tree users, as it basically corresponds to the PortFast feature.
What bound STP?
P2P Bound(STP) shows up when you’re probably running regular STP on the other side and have an MST configured on a VLAN on this port. P2P edge port, you have portfast enabled on that port.
What is Rstp used for?
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 is Portfast edge?
portfast edge is used to configure a port on which an end device is connected, such as a PC. All ports directly connected to end devices cannot create bridging loops in the network. Therefore, the edge port directly transitions to the forwarding state, and skips the listening and learning stages.
How does MST work Cisco?
MST converges faster than Per VLAN Spanning Tree Plus (PVST+) and is backward compatible with 802.1D STP, 802.1w (Rapid Spanning Tree Protocol [RSTP]), and the Cisco PVST+ architecture. MST allows you to build multiple spanning trees over trunks. You can group and associate VLANs to spanning tree instances.
How does STP work in EtherChannel?
Spanning tree protocol (STP) can be used with an EtherChannel. STP treats all the links as a single one and BPDUs are only sent down one of the links. Without the use of an EtherChannel, STP would effectively shutdown any redundant links between switches until one connection goes down.
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 BPDU guard in STP?
BPDU Guard feature protects the port from receiving STP BPDUs, however the port can transmit STP BPDUs. When a STP BPDU is received on a BPDU Guard enabled port, the port is shutdown and the state of the port changes to ErrDis (Error-Disable) state.
What is Portfast and BPDU guard?
The PortFast and BPDU. A BPDU is a data message transmitted across a local area network to detect loops in network topologies. Guard features enhance network reliability, manageability, and security for Layer-2 STP. STP is a network protocol that builds a logical loop-free topology for Ethernet networks. .
Is STP Cisco proprietary?
Cisco also published a proprietary version of Rapid Spanning Tree Protocol. It creates a spanning tree for each VLAN, just like PVST. Cisco refers to this as Rapid Per-VLAN Spanning Tree (RPVST).
Can STP block EtherChannel?
Yes! In fact, the Etherchannel/Portchannel interface will be blocked since that is the only interface that is participating in the Spanning-Tree protocol.
Can an EtherChannel be configured with STP?
Each EtherChannel has a logical port channel interface. A configuration that is applied to the port channel interface affects all physical interfaces that are assigned to that interface. (Such commands can be STP commands or commands to configure a Layer 2 EtherChannel as a trunk or an access port.)
Which is better STP or RSTP?
It has new port states and port roles and, more importantly, faster convergence times. Both STP or RSTP are critical to having a healthy network and an administrator would benefit from using RSTP over STP. RSTP is the answer for businesses that require faster recovery times.
What is Spanning Tree Protocol (STP)?
Sample topology Spanning Tree Protocol (STP) assumes that when the link type is P2P, there will be only one other STP device connected on that interface. When a topology change occurs, the process is as follows: 1. Switch 3850-1 sends the proposal.
Is the L2 interface connected to ACI Leafs P2P or link-type shared?
The L2 interface connected to ACI leafs should be configured with link-type shared, not point-to-point (P2P). Spanning Tree Protocol (STP) assumes that when the link type is P2P, there will be only one other STP device connected on that interface. When a topology change occurs, the process is as follows:
Can I configure a spanning-tree instance interface as an edge port?
Keep the following guidelines in mind when configuring spanning-tree instance interfaces as edge ports: Do not configure a spanning-tree instance interface as an edge port if it is connected to any Layer 2 bridge. An instance interface connected to Layer 2 bridges but configured as an edge port can cause physical loops.
What is p2p/shr-the interface?
“P2p/Shr-The interface is considered as a point-to-point (resp. shared) interface by the spanning tree.” Whether it is seen as P2P or shared depends on the duplex setting. Full duplex treated as P2P.