Enabling Ldt Control On An Interface; Optional) Disable Ldt On An Interface - Huawei Quidway S9300 Configuration Manual

10 LDT Configuration
By default, LDT is disabled in all VLANs.
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10.2.4 Enabling LDT Control on an Interface

Context
Do as follows on the S9300.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
interface interface-type interface-number
The interface view is displayed.
Step 3 Run:
stp disable
STP is disabled.
Step 4 Run:
port hybrid { untagged | tagged } vlan vlan-id [ to vlan-id2 ]
The hybrid interface is added to the specified VLANs. Packets from these VLANs can pass
through the interface.
Step 5 Run:
loop-detection mode { port-trap |port-blocking |port-nolearning |port-shutdown }
LDT control is enabled on the interface. When a loop is detected on the interface, the S9300 sets
the state of the interface to Trap, Blocking, No learning, or Shutdown.
l
l
l
l
By default, an interface turns to the Blocking state when a loop is detected on the interface.
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10.2.5 (Optional) Disable LDT on an Interface

Context
Do as follows on the S9300.
10-4
Trap: The S9300 sends a trap message but does not perform any operation on the interface.
Blocking: The interface is blocked and allows only BPDUs to pass through.
No learning: The interface does not learn MAC addresses of packets.
Shutdown: The interface is disabled.
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Quidway S9300 Terabit Routing Switch
Configuration Guide - Ethernet
Issue 03 (2009-08-20)