Symptom
APIC displays multiple arp endpoint IPs in the same vlan, even if they belong to different one.
Conditions
Having multiple arp neighbours with the same mac address in different vlans but behind the same l3out interface.
Further Problem Description
We have two different IP and MAC addresses in different vlans:
IP ARP Table for context TENANT:VRF_A
Total number of entries: 2
Address Age MAC Address Interface
10.9.98.10 00:11:03 00d7.8fbf.737c vlan25
10.9.99.10 00:06:40 00d7.8fbf.737c vlan29
VLAN Name Encap Ports
---- -------------------------------- ---------------- ------------------------
25 TENANT:VRF_A:l3out-L3OUT_STAT vxlan-14778397, Eth1/6
IC_2:vlan-998 vlan-998
VLAN Name Encap Ports
---- -------------------------------- ---------------- ------------------------
29 TENANT:VRF_A:l3out-L3OUT_STAT vxlan-14680113, Eth1/6
IC_2:vlan-999 vlan-999
APIC display both of the IPs in the same vlan:
End Point MAC IP Address Source Node Interface Encap Multicast Address Create TS
00:D7:8F:BF:73:7C 10.9.99.10 learned 104 eth1/6 vlan-998 not-applicable
00:D7:8F:BF:73:7C 10.9.98.10 learned 104 eth1/6 vlan-998 not-applicable
