Packet drop for my ESXI hosts

[savita88rana@gmail.com]

hi Team , my rackmount servers are directly connected to switches

Cisco Nexus Switch 31108 A	Eth 1/3	Cisco UCS C220 C-Series Standalone Server A	MLOM1	port 0
	Eth 1/4	Cisco UCS C220 C-Series Standalone Server B	MLOM1	port 0
	Eth 1/5	Cisco UCS C220 C-Series Standalone Server A	MLOM2	port 1
	Eth 1/6	Cisco UCS C220 C-Series Standalone Server B	MLOM2	port1

Cisco Nexus Switch 31108 B	Eth 1/3	Cisco UCS C220 C-Series Standalone Server A	MLOM3	port 2
	Eth 1/4	Cisco UCS C220 C-Series Standalone Server B	MLOM3	port 2
	Eth 1/5	Cisco UCS C220 C-Series Standalone Server A	MLOM4	port3
	Eth 1/6	Cisco UCS C220 C-Series Standalone Server B	MLOM4	port 3

now i have put Eth1/3 from both switches into PO13 and eth1/4 from both swicthes into PO14 . after which my IPs were not reachable , so i changed the nic teamimg policy to IP hash after which my IPs are reachable but there is packet drop .  now i have shut PO 14 on bith switches and my first host IP is pinging fine no packet drop ... and if i shutdown the PO 13 then 2 nd IP working fine ... should eth1/5 , eth1/6 also be part of Port channel PO13 , PO14 ?

[balaji.bandi]

I prefer to look at your port-channel config of both the side switches

is the nexus 3K connected each other vPC with peerlink?

how about configuring vPC down the UCS environment.

show suggest better and test, post the configuration of the switch side.

[savita88rana@gmail.com]

yes we have VPC peer link in both switches . here is the output

Switch B :
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ -------------------------------------------------
1 Po10 up 17,1172,3377-3378,3437-3442


vPC status
----------------------------------------------------------------------------
Id Port Status Consistency Reason Active vlans
-- ------------ ------ ----------- ------ ---------------
11 Po11 up success success 3437-3440



12 Po12 up success success 3437-3440



13 Po13 up success success 3437-3439,3441

-3442

14 Po14 down* success success -



SWITCH-A
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ -------------------------------------------------
1 Po10 up 17,1172,3377-3378,3437-3442


vPC status
----------------------------------------------------------------------------
Id Port Status Consistency Reason Active vlans
-- ------------ ------ ----------- ------ ---------------
11 Po11 up success success 3437-3440



12 Po12 up success success 3437-3440



13 Po13 up success success 3437-3439,3441

-3442

14 Po14 down* success success -



25 Po25 up success success 17,1172,3437-3

442


Please check "show vpc consistency-parameters vpc <vpc-num>" for the
consistency reason of down vpc and for type-2 consistency reasons for

[balaji.bandi]

how is your spanning-tree configured?

Just to make more clear, when you bring other port-channel you getting Packet drop, once you shutdown that Port-channel all traffic is good - is this correct?

Can you post the configuration as suggest in the last post