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VMWare -Cisco physical switch configuration for etherchannel

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Last Modified: 2016-11-23
i have a dell R710 connected via dual 10Gbps connections to a Cisco nexus 5548 switch. I am trying to configure the switch to use both 10Gbps ports in a port channel. when I apply the port-group 204 command on both the end ports, I lose connectivity to the host. What am I missing or could it be something on the vSwitch?


interface Ethernet1/23
  description HostA-10gig01
  switchport mode trunk
  switchport trunk native vlan 999
  switchport trunk allowed vlan 1-3,107-108,126
  spanning-tree port type edge
  flowcontrol receive on
  flowcontrol send on

interface Ethernet1/24
  description HostA-10gig02
  switchport mode trunk
  switchport trunk native vlan 999
  switchport trunk allowed vlan 1-3,107-108,126
  spanning-tree port type edge
  flowcontrol receive on
  flowcontrol send on


!Command: show running-config interface port-channel204
!Time: Sun Jan 12 23:42:53 2014


interface port-channel204
  description HostA-10Gig
  switchport mode trunk
  switchport trunk native vlan 999
  switchport trunk allowed vlan 1-3,107-108,126
  spanning-tree port type edge trunk
  flowcontrol receive on
  flowcontrol send on
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VMware and Virtualization Consultant
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Commented:
I found my problem. I copied the configuration off of my production nexus 1000v. When I did this I included the line on my system uplink port.


channel-group auto mode on mac-pinning


In my enviornment I am only connecting to 1 switch (redundant switch is not there yet). This command is only used on VPCs from what I understand to tell the 1000v to pin the mac to a specific port rather than balancing traffic between ports.  We enabled this setting on the individual ports and the uplink port-profile. both ports then were allowed to be channeled.


channel-group auto mode on
Andrew Hancock (VMware vExpert PRO / EE Fellow)VMware and Virtualization Consultant
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Expert of the Year 2017

Commented:
ha ha, missing config, it happens!, glad you found your issue!

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