The remote-ce ip command specifies the IP address of the remote CE corresponding to an access interface or its sub-interface on a PE.
The undo remote-ce ip command deletes the configuration.
By default, the IP address of the remote CE corresponding to an access interface or its sub-interface on a PE is not specified.
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Usage Scenario
In a scenario in which VPWS is configured to support IP interworking, if sub-interfaces on a PE are used to establish multiple PWs, you need to run the remote-ce ip command on each sub-interface to specify the IP address of a remote CE corresponding to the sub-interface. In this manner, one CE can communicate with multiple CEs.
By default, the IP address of the remote CE corresponding to an access interface or its sub-interface on a PE is not specified. In this case, after receiving an ARP request from the local CE, each sub-interface on the PE replies with its MAC address and VLAN ID. The local CE, however, learns only the last ARP reply sent by a sub-interface on the PE. Therefore, whichever remote CE the local CE requests, the ARP entries of remote CEs learned by the local CE belong to the same VLAN. As a result, the local CE can communicate with only one remote CE. If the remote-ce ip command is run on each sub-interface of a PE, the PE will check whether the configured remote-ce ip on the sub-interface is the destination IP address in the ARP request sent by the local CE. If it is the one, the sub-interface on the PE will reply with its MAC address and VLAN ID. Otherwise, the sub-interface does not reply. In this manner, the ARP entry of each remote CE learned by the local CE belongs to respective VLANs, realizing communication between the local CE and multiple remote CEs.Prerequisites