Switch Impact for DAD State Changes
When an IP address is in a duplicate or tentative state, the normal
behavior of the switch may change since that IP address isn‘t usable, even though it
does exist. The following are some examples of what can happen when an IP address is
marked duplicate or tentative:
- Routes may be withdrawn or marked inactive
- Dynamic IP ARP entries may get flushed
- VRRP virtual router instances may be disabled and put into init
state causing the backup VRRP router to take over mastership.
- Ping and traceroute commands may fail.
- The DHCP client will send a DHCP decline to the DHCP server if
the IP address for a DHCP client on a VLAN is not Valid
- The DHCP scope IP address range configuration might fail when
the DHCP enabled VLAN IP address becomes duplicate.
- SNMP requests may fail
- SNMP traps will not be sent if the if the configured source IP
address is not Valid
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