ucs c240m4 nic teaming issue with etherchannel

[vijendra Saravanamuthu]

hi guys,

i have a c series 240 m4 connected to a nexus switch with only 2 nics in the nic teaming (its a route based IP hash) and the switch config are

interface Ethernet1/39

  description Temp-UCS-2

  switchport

  switchport mode trunk

  switchport trunk native vlan 136

  switchport trunk allowed vlan 136,2810

  channel-group 201

interface Ethernet1/41

  description Temp-UCS-2

  switchport

  switchport mode trunk

  switchport trunk native vlan 136

  switchport trunk allowed vlan 136,2810

  channel-group 201

where 136 is the vlan for esxi host and 2810 is for voice vlan.  these 2 nics are used for both management network port group (assigned to esxi host traffic) and voice network port group which is assigned for all virtual machines.   the switch shows both NICs are on and P state.  however the problem is with the management traffic of esxi host. it goes up and down sporadically. 

i have 2 intel ethernet server adapter i350-t4 PCi adapters each has 4 ports.  those 2 nics are one from each of these PCIs.  also i have  a LOM with 2 nics which i am not using currently.  i have tried to use different combinations of NICs from PCIs and LOMs with no luck. it just hte host traffic to esxi giving trouble.  because of that, the VCentre to which this ESXI host is added giving alarms and accessibility issues as you can imagine.

any advice/suggestion is appreciated.

thanks.

vijay

[mojafri]

Hi Vijendra,

Please provide below details: 

1. Topology diagram?

2. Are you using vpc? 

3. vcenter and host are in same subnet? 

4. Do you have any other esxi hosts connected to same switch or having mgmt traffic on vlan 136?

5. Will vc & esxi host connection recover automatically ? Did you get a chance to ping esxi while it gets disconnected? 

Regards,

MJ

[vijendra Saravanamuthu]

1. Topology diagram?

not a complicated one.  this c240 is connected directly to the nexus switch using 2 nics (both nics are connected to this one switch for now)

2. Are you using vpc? 

no

3. vcenter and host are in same subnet? 

yes

4. Do you have any other esxi hosts connected to same switch or having mgmt traffic on vlan 136?

no .only this for now

5. Will vc & esxi host connection recover automatically ? Did you get a chance to ping esxi while it gets disconnected? 

yes I did ping the esxi host and its become unreachable for esxi host. it doesn't get recover unless I unplug one cable so It can run on one connection only.