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Clearing DHCP Snooping Binding Entries
Context
After the networking environment changes, DHCP snooping binding entries do not age immediately. The following information in DHCP snooping binding entries may change, causing packet forwarding failure:
- VLAN to which a DHCP client belongs.
- Interface to which DHCP clients are connected.
- IPv4 address to which a DHCP client belongs.
- BD to which the user belongs.
After the DHCP snooping binding entries are cleared, network communication can be recovered only after all the DHCP users connected to the device re-log in and new binding entries are generated. Exercise caution when you run the command.