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Two MAC addresses having one IP address (NIC teaming)

izzat
Level 1
Level 1

Hi to all Sifu,

 RCA-Page-3.jpg

On the server side: They are doing NIC teaming

On the network side: We are doing VPC

As in the pic above, that is how the endpoint is connected to the leaf switch. When I run the command 'show endpoint ip 10.201.128.95' the result is as below:

End Point MAC       IP Address                         Source       Node       Interface                      Encap            Multicast Address  Create TS 
----------------- --------------------------------- ------------ ---------- ------------------------------ --------------- --------------- --------------------
00:00:00:00:11:11 10.201.128.95 learned 1 2 vpc vPC_SGB_RAserver_RackE07 vlan-38 not-applicable 2023-08-21T19:47:48.958+08:00
00:00:00:00:22:22 10.201.128.95 learned 1 2 vpc vPC_SGB_RAserver_RackE07 vlan-38 not-applicable 2023-08-21T19:46:19.735+08:00

When this happens, the ping result requests time out and is intermittent on the user side. 

Here is the ping result:

Pinging 10.201.128.95 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Reply from 10.201.128.95: bytes=32 time=9ms TTL=126
Request timed out.
Reply from 10.201.128.95: bytes=32 time=3ms TTL=126
Reply from 10.201.128.95: bytes=32 time=1ms TTL=126
Reply from 10.201.128.95: bytes=32 time=2ms TTL=126
Request timed out.
Request timed out.
Reply from 10.201.128.95: bytes=32 time=2ms TTL=126
Reply from 10.201.128.95: bytes=32 time=5ms TTL=126
Reply from 10.201.128.95: bytes=32 time=1ms TTL=126
Reply from 10.201.128.95: bytes=32 time=4ms TTL=126
Reply from 10.201.128.95: bytes=32 time=2ms TTL=126
Request timed out.
Reply from 10.201.128.95: bytes=32 time=1ms TTL=126
Request timed out.
Reply from 10.201.128.95: bytes=32 time=1ms TTL=126
Reply from 10.201.128.95: bytes=32 time=3ms TTL=126
Reply from 10.201.128.95: bytes=32 time=3ms TTL=126
Reply from 10.201.128.95: bytes=32 time=1ms TTL=126
Reply from 10.201.128.95: bytes=32 time=3ms TTL=126
Reply from 10.201.128.95: bytes=32 time=3ms TTL=126
Reply from 10.201.128.95: bytes=32 time=15ms TTL=126
Reply from 10.201.128.95: bytes=32 time=2ms TTL=126

Ping statistics for 10.201.128.95:
Packets: Sent = 27, Received = 18, Lost = 9 (33% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 15ms, Average = 3ms

What can I do to solve this issue once and for all? 

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