HPE FlexNetwork 5130 EI Series User Manual

164
Loop detection commands
display loopback-detection
Use display loopback-detection to display the loop detection configuration and status.
Syntax
display loopback-detection
Views
Any view
Predefined user roles
network-admin
network-operator
Example
# Display the loop detection configuration and status.
<Sysname> display loopback-detection
Loopback detection is enabled.
Loopback detection interval is 30 second(s).
Loopback is detected on following interfaces:
Interface Action mode VLANs
GigabitEthernet1/0/3 None 10
Table 34 Command output
Field Description
Action mode
Loop protection action:
• Block—When a loop is detected on a port, the device performs the
following operations:
{ Generates a log.
{ Disables the port from learning MAC addresses.
{ Blocks the port.
• None—When a loop is detected on a port, the device generates a log but
performs no action on the port.
• No-learning—When a loop is detected on a port, the device generates a
log and disables the port from learning MAC addresses.
• Shutdown—When a loop is detected on a port, the device performs the
following operations:
{ Generates a log.
{ Shuts down the port to disable the port from receiving or sending
frames. The device automatically sets the port to the forwarding state
after a time interval. Set the time interval by using the
shutdown-interval command (see Fundamentals Command
Reference).
VLANs VLANs to which the interface belongs and where loops are detected.
loopback-detection action
Use loopback-detection action to set the loop protection action on a per-port basis.

HPE FlexNetwork 5130 EI Series Specifications

General

Brand	HPE
Model	FlexNetwork 5130 EI Series
Category	Switch
Language	English

Summary

Ethernet Interface Commands

Common Ethernet Interface Commands

Configures common parameters for Ethernet interfaces, including bandwidth, description, and speed settings.

Layer 2 Ethernet Interface Commands

Manages Layer 2 specific features for Ethernet interfaces, such as storm control and MAC address handling.

MAC Address Table Commands

Displaying MAC Address Entries

Displays MAC address entries, supporting filtering by address, VLAN, state, and interface.

MAC Address Learning Management

Manages the global and per-interface MAC address learning status and configuration.

MAC Address Move Tracking

Ethernet Link Aggregation Commands

Link Aggregation Configuration

Configures Ethernet link aggregation, including bandwidth, default settings, and interface descriptions.

LACP Configuration

Configures LACP parameters such as system ID, edge ports, mode, period, and selection criteria.

Link Aggregation Load Balancing

Configures global and group-specific load balancing modes for link aggregation.

Link Aggregation Member Port Information

Spanning Tree Commands

MST Region Configuration

Configures MST region parameters, including region name, revision level, and VLAN-to-instance mapping.

Displaying STP Status and Statistics

Displays STP status, statistics, and port information across different modes (MSTP, PVST).

STP Protection Features

Configures STP protection features like BPDU guard, root guard, and TC protection.

STP Timers Configuration

Configures STP timers such as forward delay, hello time, max age, and timer factor.

Loop Detection Commands

Displaying Loop Detection Information

Configuring Loop Detection Actions

Sets the action (block, no-learning, shutdown) taken when a loop is detected on a port.

Global Loop Detection Configuration

VLAN Commands

Basic VLAN Configuration

Port-Based VLAN Configuration

Configures VLAN assignments for ports, including access, hybrid, and trunk port types.

MAC-Based VLAN Configuration

Configures VLAN assignment based on MAC addresses, including dynamic and static entries.

IP Subnet-Based VLAN Configuration

Protocol-Based VLAN Configuration

Super VLAN Configuration

Manages super VLANs and their associated sub-VLANs for hierarchical VLAN structures.

Private VLAN Configuration

Configures private VLANs, including primary, secondary, promiscuous, and host ports.

Voice VLAN Configuration

Configures voice VLANs, including MAC address identification, aging, security, and QoS.

MVRP Commands

Displaying MVRP Status and Statistics

MVRP Enable and Registration

QinQ Commands

Displaying QinQ Information

QinQ Transparent VLAN Configuration

VLAN Mapping Commands

Displaying VLAN Mapping Information

Configuring VLAN Mapping

LLDP Commands

LLDP Local Information Display

LLDP Neighbor Information Display

LLDP Statistics Display

LLDP Status Display

LLDP TLV Configuration and Display

LLDP Admin Status Configuration

LLDP Polling Interval Configuration

LLDP Notification Configuration

LLDP Timer Configuration

L2PT Commands

Displaying L2 Protocol Statistics

L2PT Tunnel Configuration