The Spanning Tree Protocol (STPSpanning Tree Protocol. STP is a network protocol that builds a logical loop-free topology for Ethernet networks.) eliminates Layer 2 loops in networks, by selectively blocking some ports and allowing other ports to forward traffic, based on global (bridge) and local (port) parameters you can configure.
STPSpanning Tree Protocol. STP is a network protocol that builds a logical loop-free topology for Ethernet networks. is always disabled by default on Aruba switches. To configure STPSpanning Tree Protocol. STP is a network protocol that builds a logical loop-free topology for Ethernet networks. for switches provisioned in the UI groups:
1. In the Network Operations app, use the filter to select a group or a device.
2. Under Manage, click Device(s) > Switches.
3. Click the
4. Click Interface > Spanning Tree. The Spanning Tree page is displayed.
5. Enable MSTPMultiple Spanning Tree Protocol. MSTP configures a separate Spanning Tree for each VLAN group and blocks all but one of the possible alternate paths within each spanning tree. if you want to avoid bridge loops between network nodes and to maintain a single active path between the network nodes. MSTPMultiple Spanning Tree Protocol. MSTP configures a separate Spanning Tree for each VLAN group and blocks all but one of the possible alternate paths within each spanning tree. will be enabled for all VLANsVirtual Local Area Network. In computer networking, a single Layer 2 network may be partitioned to create multiple distinct broadcast domains, which are mutually isolated so that packets can only pass between them through one or more routers; such a domain is referred to as a Virtual Local Area Network, Virtual LAN, or VLAN. assigned to switch ports. If you have a trunk group configured for the switches in the group, MSTPMultiple Spanning Tree Protocol. MSTP configures a separate Spanning Tree for each VLAN group and blocks all but one of the possible alternate paths within each spanning tree. is enabled at the trunk level.
6. Set the priority of the UI group.
7. To configure MSTPMultiple Spanning Tree Protocol. MSTP configures a separate Spanning Tree for each VLAN group and blocks all but one of the possible alternate paths within each spanning tree. parameters for ports, select the port row(s) in Port Settings, click Edit.
8. To configure MSTPMultiple Spanning Tree Protocol. MSTP configures a separate Spanning Tree for each VLAN group and blocks all but one of the possible alternate paths within each spanning tree. parameters for trunks, select the trunk group row(s) in Trunk Group Settings, click Edit.
9. Configure the following MSTPMultiple Spanning Tree Protocol. MSTP configures a separate Spanning Tree for each VLAN group and blocks all but one of the possible alternate paths within each spanning tree. parameters for ports or trunks of individual switches:
Table 1: Viewing or Configuring Port and Trunk Settings
Name | Description | Value|
Priority | A number used to identify the root bridge in an STPSpanning Tree Protocol. STP is a network protocol that builds a logical loop-free topology for Ethernet networks. instance. The switch with the lowest value has the highest priority and is the root bridge. A higher numerical value means a lower priority; thus, the highest priority is 0. When the switches in a network select their root bridge, two parameters are considered, the STPSpanning Tree Protocol. STP is a network protocol that builds a logical loop-free topology for Ethernet networks. priority and the MACMedia Access Control. A MAC address is a unique identifier assigned to network interfaces for communications on a network. address of the switch. All Aruba switches have a default STPSpanning Tree Protocol. STP is a network protocol that builds a logical loop-free topology for Ethernet networks. priority of 8. So the switch with the lowest MACMedia Access Control. A MAC address is a unique identifier assigned to network interfaces for communications on a network. automatically gets selected as a root bridge. This is not a recommended process as it randomizes the selection of the root bridge. | 0 – 8 Default: 8 |
BPDU Protection | A security feature used to protect the active STPSpanning Tree Protocol. STP is a network protocol that builds a logical loop-free topology for Ethernet networks. topology by preventing spoofed BPDUBridge Protocol Data Unit. A BPDU is a data message transmitted across a local area network to detect loops in network topologies. packets from entering the STPSpanning Tree Protocol. STP is a network protocol that builds a logical loop-free topology for Ethernet networks. domain. In a typical implementation, BPDUBridge Protocol Data Unit. A BPDU is a data message transmitted across a local area network to detect loops in network topologies. protection is applied to the edge ports and access ports connected to end-user devices that do not run STPSpanning Tree Protocol. STP is a network protocol that builds a logical loop-free topology for Ethernet networks.. If STPSpanning Tree Protocol. STP is a network protocol that builds a logical loop-free topology for Ethernet networks. BPDUBridge Protocol Data Unit. A BPDU is a data message transmitted across a local area network to detect loops in network topologies. packets are received on a protected port, the port is disabled and the network manager is alerted via SNMPSimple Network Management Protocol. SNMP is a TCP/IP standard protocol for managing devices on IP networks. Devices that typically support SNMP include routers, switches, servers, workstations, printers, modem racks, and more. It is used mostly in network management systems to monitor network-attached devices for conditions that warrant administrative attention. traps. | Enable or Disable Default: Disable |
BPDU Filter | Enables control of STPSpanning Tree Protocol. STP is a network protocol that builds a logical loop-free topology for Ethernet networks. participation for each port. The feature can be used to exclude specific ports from becoming part of STPSpanning Tree Protocol. STP is a network protocol that builds a logical loop-free topology for Ethernet networks. operations. A port with the BPDUBridge Protocol Data Unit. A BPDU is a data message transmitted across a local area network to detect loops in network topologies. filter enabled ignores incoming BPDUBridge Protocol Data Unit. A BPDU is a data message transmitted across a local area network to detect loops in network topologies. packets and stays locked in the STPSpanning Tree Protocol. STP is a network protocol that builds a logical loop-free topology for Ethernet networks. forwarding state. All other ports maintain their role. Recommended ports for BPDUBridge Protocol Data Unit. A BPDU is a data message transmitted across a local area network to detect loops in network topologies. filter: Ports or trunks connected to client devices. | Enable or Disable Default: Disable |
Admin-Edge | When set, the port directly goes into forwarding state. This configuration is not recommended for ports which connect to infrastructure devices. A BPDUBridge Protocol Data Unit. A BPDU is a data message transmitted across a local area network to detect loops in network topologies. guard also assists when a port inadvertently goes into a forwarding state. | Enable or Disable Default: Disable |
Root Guard | Sets the port to ignore superior BPDUs to prevent the switch from becoming the Root Port. | Enable or Disable Default: Disable |
Trunk Group | Sets the trunk group to which the port is assigned. | Enable or Disable Default: Disable |
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