Cisco CSR1000v – additional Interfaces? vNIC Hot-Add!

My apprehension – a weird nightmare of having to shutdown the router, add the nic and boot the router again – proved wrong.
vNIC Hot-Add is supported for VMware ESXi, Citrix XenServer and KVM
Not for Hyper-V, Azure, AWS today.
Cisco: Virtual Machine Requirements
…up to 10 vNICs for ESXi btw.

  • Starting with three default-interfaces
IOS-RTR#show ip int brief
Interface              IP-Address      OK? Method Status                Protocol
GigabitEthernet1       192.168.2.13    YES NVRAM  up                    up
GigabitEthernet2       unassigned      YES NVRAM  administratively down down
GigabitEthernet3       unassigned      YES NVRAM  administratively down down
  • select the VM
  • go to „Edit Settings“
vSphere Client: Add Hardware
vSphere Client: Add Hardware
Add Ethernet NIC
Select NIC-Type „VMXNET3“
  • Next, Next, Finish
  • be patient
Dec 16 14:56:10.165: %LINK-5-CHANGED: Interface GigabitEthernet4, changed state to administratively down
Dec 16 14:56:11.166: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet4, changed state to down
IOS-RTR#show ip int brief
Interface              IP-Address      OK? Method Status                Protocol
GigabitEthernet1       192.168.2.13    YES NVRAM  up                    up
GigabitEthernet2       unassigned      YES NVRAM  administratively down down
GigabitEthernet3       unassigned      YES NVRAM  administratively down down
GigabitEthernet4       unassigned      YES unset  administratively down down

…Hot-Remove is supported only using a special „two-step“ strategy

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