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Networking, Virtualization

Cisco Adapter-FEX P81E VIC adapter and Nexus 5000 switches (A-FEX) and ESXi 5

The full Cisco Adapter-FEX configuration guide can be found here.

These are the steps you need to take to enable A-FEX on a Nexus 5000 switch. After following these steps your vnics should be available in ESXi.

  1. Enable NIV on the physical server adapters using CIMC.
  2. Enable the virtualization feature on both switches if using two Nexus 5K’s in a vPC config:
switch# config
switch(config)# install feature-set virtualization
switch(config)# feature-set virtualization
switch(config)# vethernet auto-create

3. Create the uplink port profiles on both switches:

switch# port-profile type vethernet ESXi-Uplinks
switch#switchport trunk allowed vlan 101-109
switch#switchport mode trunk
switch# state enabled

4. Put the FEX interfaces into vntag mode for NIV:

switch(config)# interface Ethernet1/11
switch(config-if)#description “ESXi-11”
switch(config-if)# switchport mode vntag

5.Add any additional vnics to the server using the CIMC

6. Run ‘show interface brief’ to verify vethernet interfaces are being created. You may have to reboot the server or reload the network drivers. Dynamic vethernet interfaces start at 32769

Vethernet     VLAN   Type Mode   Status  Reason                   Speed

--------------------------------------------------------------------------
Veth32769     1      virt trunk  up      none                       auto
Veth32770     1      virt trunk  up      none                       auto
Veth32771     1      virt trunk  up      none                       auto
Veth32772     1      virt trunk  up      none                       auto
Veth32773     1      virt trunk  up      none                       auto
Veth32774     1      virt trunk  up      none                       auto
Veth32775     1      virt trunk  up      none                       auto
Veth32776     1      virt trunk  up      none                       auto

7. Install ESXi

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