Using CE Ping to Check the Connectivity Between a PE and a CE
After configuring an EVPN, you can use CE ping to check the connectivity between a PE and a CE.
Context
When you specify a source IP address, note the following:
- The specified source IP address must be on the same network segment as the IP address of the CE. Otherwise, when the CE receives CE ping messages, it regards them invalid and discards them.
- The source IP address must be an unused IP address in the specified EVPN broadcast domain. If you specify a used IP address for the source IP address, CE ping messages cannot be properly forwarded. As a result, the user using the source IP address cannot access the Internet. If the specified source IP address is the same as the gateway IP address, no users cannot access the network.
To avoid the preceding problems, the system will inform you that you must use an unused IP address as the source IP address after you run the ce-ping evpn command and instruct you to enter Y for confirmation.
Procedure
- Run the ce-ping ip-address evpn evpn-name source-ip source-ip-address [ mac mac-address ] [ count count | interval interval ] * command in any view to check the connectivity from the PE to the CE.
<HUAWEI> ce-ping 10.1.1.1 evpn huawei123 source-ip 10.1.1.12 mac 00e0-fc12-5678 interval 2 count 5 Info: If the designated source IP address is in use, it could cause the abnormal data transmission in EVPN network. Are you sure the source-ip is unused in this EVPN? [Y/N]:y Ce-ping is in process... 10.1.1.1 is used by 00-e0-fc-12-34-56