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Total items displayed = 1
If not, re-configure the binding relationships between the MAC address, VLAN, and interface.
If yes, go to step 2.
Step 2
Check whether a loop on the network causes MAC address flapping.
l
Remove the loop from the network.
If no loop exists, go to step 3.
Step 3
Check whether the interface is blocked by a loop prevention protocol.
Run the
display stp brief
command in any view to check whether the interface participates in
STP calculation and check the interface status.
Run the
display sep topology
command in any view to check whether the interface participates
in STP calculation and check the interface status.
If the interface status is incorrect, check the STP or SEP configuration.
If the interface status is correct, go to step 4.
Step 4
Check that MAC address learning is enabled.
Check whether MAC address learning is enabled in the interface view and the VLAN view.
[Huawei-Ethernet0/0/1]
display this
#
interface Ethernet0/0/1
mac-address learning disable
port hybrid tagged vlan 10
undo negotiation auto
speed 100
#
return
[Huawei-vlan10]
display this
#
vlan 10
mac-address learning disable
#
return
If the command output contains
mac-address learning disable
, MAC address learning is
disabled on the interface or VLAN.
l
If MAC address learning is disabled, run the
undo mac-address learning disable
command in the interface view or VLAN view to enable MAC address learning.
l
If MAC address learning is enabled on the interface, go to step 4.
Step 5
Check whether any blackhole MAC address entry or MAC address limiting is configured.
If a blackhole MAC address entry or MAC address limiting is configured, the interface discards
packets.
l
Blackhole MAC address entry
Run the
display mac-address blackhole
command to check whether any blackhole MAC
address entry is configured.
[Huawei]
display mac-address blackhole
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MAC Address VLAN/Bridge Learned-From Type
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Huawei AR530&AR550 Series Industrial Switch Routers
Configuration Guide - Ethernet Switching
1 MAC Address Table Configuration
Issue 01 (2014-11-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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