How to check whether an ARP Conflict Occurs ?

9

Run the display logbuffer command to display the system log and check whether the ARP conflict occurs, resulting in slow network access.

Other related questions:
How to check whether the configured OSPF router IDs conflict
For details about how to check whether the configured OSPF router IDs conflict, see FAQ-How to Determine that Configured OSPF Router IDs Conflict.

How to check whether the IP addresses of interfaces in an OSPF area conflict
For details about how to check whether the IP addresses of interfaces in an OSPF area conflict, see FAQ-How to Determine that the IP Addresses of Interfaces in an OSPF Area Conflict.

How do I check whether LSP flapping occurs on an AR
You can run the display mpls lsp command to check the number of LSPs. If the number of LSPs changes frequently, LSP flapping occurs. In this case, run the snmp-agent trap enable feature-name mpls_lspm command. If the alarm about LSPs is frequently generated, LSP flapping occurs. Run the undo snmp-agent trap enable command. For example: #Jul 25 22:49:18 2020 HUAWEI LSPM/5/TRAP:1.3.6.1.2.1.10.166.2.0.2 LSP 210958 Changes to Down #Jul 25 22:49:19 2020 HUAWEI LSPM/5/TRAP:1.3.6.1.2.1.10.166.2.0.1 LSP 210958 Changes to Up The preceding information shows that the LSP alternates between Up and Down.

How do I check address allocation on an AR
On an AR, you can run the following commands to check address allocation: - If addresses are allocated based on the interface address pool, run the display ip pool [ interface interface-pool-name [ start-ip-address [ end-ip-address ] | all | conflict | expired | used ] ] command. - If addresses are allocated based on the interface address pool, run the display ip pool [ interface interface-pool-name [ start-ip-address [ end-ip-address ] | all | conflict | expired | used ] ] command. - If addresses are allocated based on the interface address pool, run the display ip pool [ interface interface-pool-name [ start-ip-address [ end-ip-address ] | all | conflict | expired | used ] ] command. - If addresses are allocated based on the interface address pool, run the display ip pool [ interface interface-pool-name [ start-ip-address [ end-ip-address ] | all | conflict | expired | used ] ] command. - If addresses are allocated based on the global address pool, run the display ip pool [ name ip-pool-name [ start-ip-address [ end-ip-address ] | all | conflict | expired | used ] ] command. - If all is specified, the command displays information about all IP addresses in an address pool. - If conflict is specified, the command displays information about conflicting IP addresses in an address pool. - If expired is specified, the command displays information about expired and idle IP addresses in an address pool. - If used is specified, the command displays information about used IP addresses in an address pool. - If start-ip-address [ end-ip-address ] is specified, the command displays information about a specified IP address or start and end IP addresses.

If you have more questions, you can seek help from following ways:
To iKnow To Live Chat
Scroll to top