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- Routes may be withdrawn or marked inactive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 (VR) 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 (Dynamic Host Configuration Protocol) 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