Configuring LBDT to Detect Loops

This section provides a sample of configuring LBDT for loop detection using the edit-config method.

**Table 1** Configuring LBDT to detect loops
Operation	XPATH
edit-config	/huawei-loopback-detect:loopback-detect /ietf:interfaces/ietf:interface/huawei-loopback-detect:loopback-detect

Data Requirements

Item	Data	Description
Whether automatic LBDT is enabled	false	Disable automatic LBDT.
Action that is taken when automatic LBDT is triggered to detect loops in the VLAN where MAC address flapping is detected	quitvlan	Remove the interface from the VLAN where MAC address flapping is detected.
Interval between sending loopback detection packets	300	Set the interval between sending loopback detection packets to 300 seconds.
Destination MAC address of untagged loopback detection packets	ff:ff:ff:ff:ff:ff	Set the destination MAC address of untagged loopback detection packets to ff:ff:ff:ff:ff:ff.
Whether loopback detection is enabled on an interface	true	Enable loopback detection on an interface.
Action to be taken when a loopback is detected on an interface	nolearn	Disable MAC address learning on an interface when a loopback is detected on the interface.
VLAN ID of loopback detection packets on an interface	5	Set the VLAN ID of loopback detection packets on an interface to 5.
Interface recovery time after a loopback is detected	1000	Set the interface recovery time after a loopback is detected to 1000 seconds.

Request Example

<?xml version="1.0" encoding="utf-8"?>
<rpc xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="1">
  <edit-config>
    <target>
      <running/>
    </target>
    <config>
      <hw-loopback-detect:loopback-detect nc:operation="merge" xmlns:hw-loopback-detect="urn:huawei:yang:huawei-loopback-detect" xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0">
        <hw-loopback-detect:transmit-interval-time>300</hw-loopback-detect:transmit-interval-time>
        <hw-loopback-detect:untagged-packet-mac-address>ff:ff:ff:ff:ff:ff</hw-loopback-detect:untagged-packet-mac-address>
        <hw-loopback-detect:auto-detection>
          <hw-loopback-detect:enabled>false</hw-loopback-detect:enabled>
          <hw-loopback-detect:action>quitvlan</hw-loopback-detect:action>
        </hw-loopback-detect:auto-detection>
      </hw-loopback-detect:loopback-detect>
      <if:interfaces xmlns:if="urn:ietf:params:xml:ns:yang:ietf-interfaces" nc:operation="merge" xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0">
        <if:interface nc:operation="merge">
          <if:name>Eth-Trunk1</if:name>
          <if:type xmlns:iana-if-type="urn:ietf:params:xml:ns:yang:iana-if-type">iana-if-type:ethernetCsmacd</if:type>
          <hw-loopback-detect:loopback-detect  nc:operation="merge" xmlns:hw-loopback-detect="urn:huawei:yang:huawei-loopback-detect">
            <hw-loopback-detect:enabled nc:operation="merge">true</hw-loopback-detect:enabled>
            <hw-loopback-detect:action nc:operation="merge">nolearn</hw-loopback-detect:action>
            <hw-loopback-detect:recovery-time>1000</hw-loopback-detect:recovery-time>
            <hw-loopback-detect:detect-vlans>
              <hw-loopback-detect:vlan-id>5</hw-loopback-detect:vlan-id>
            </hw-loopback-detect:detect-vlans>
          </hw-loopback-detect:loopback-detect>
        </if:interface>
      </if:interfaces>
    </config>
  </edit-config>
</rpc>

Deletion Example

<?xml version="1.0" encoding="utf-8"?>
<rpc xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="2">
  <edit-config>
    <target>
      <running/>
    </target>
    <config>
      <hw-loopback-detect:loopback-detect nc:operation="remove" xmlns:hw-loopback-detect="urn:huawei:yang:huawei-loopback-detect" xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0">
        <hw-loopback-detect:transmit-interval-time>300</hw-loopback-detect:transmit-interval-time>
        <hw-loopback-detect:untagged-packet-mac-address>ff:ff:ff:ff:ff:ff</hw-loopback-detect:untagged-packet-mac-address>
        <hw-loopback-detect:auto-detection>
          <hw-loopback-detect:enabled>false</hw-loopback-detect:enabled>
          <hw-loopback-detect:action>quitvlan</hw-loopback-detect:action>
        </hw-loopback-detect:auto-detection>
      </hw-loopback-detect:loopback-detect>
      <if:interfaces xmlns:if="urn:ietf:params:xml:ns:yang:ietf-interfaces" nc:operation="merge" xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0">
        <if:interface nc:operation="remove">
          <if:name>Eth-Trunk1</if:name>
          <if:type xmlns:iana-if-type="urn:ietf:params:xml:ns:yang:iana-if-type">iana-if-type:ethernetCsmacd</if:type>
          <hw-loopback-detect:loopback-detect  nc:operation="merge" xmlns:hw-loopback-detect="urn:huawei:yang:huawei-loopback-detect">
            <hw-loopback-detect:enabled nc:operation="merge">true</hw-loopback-detect:enabled>
            <hw-loopback-detect:action nc:operation="merge">nolearn</hw-loopback-detect:action>
            <hw-loopback-detect:recovery-time>1000</hw-loopback-detect:recovery-time>
            <hw-loopback-detect:detect-vlans>
              <hw-loopback-detect:vlan-id>5</hw-loopback-detect:vlan-id>
            </hw-loopback-detect:detect-vlans>
          </hw-loopback-detect:loopback-detect>
        </if:interface>
      </if:interfaces>
    </config>
  </edit-config>
</rpc>

Response Example

Sample of successful response

<?xml version="1.0" encoding="utf-8"?>
<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="1">
  <ok/>
</rpc-reply>

Sample of failed response

<?xml version="1.0" encoding="utf-8"?>
<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="1">
  <rpc-error>
    <error-app-tag>-1</error-app-tag>
    <error-message>VLAN list is full.</error-message>
    <error-info>Error on node /ietf-interfaces:interfaces/interface[name="Eth-Trunk1"]/huawei-loopback-detect:loopback-detect/detect-vlans</error-info>
  </rpc-error>
</rpc-reply>