Date created: Monday, August 12, 2019 8:22:26 PM. Last modified: Thursday, April 28, 2022 2:44:47 PM

IOS-XR Virtual Machines

The 3 virtual machines that run on an ASR9K/IOS-XR device are the XR VM (runs IOS-XR, this is what you connect to via SSH to configure the router), the host VM and the admin VM (a.k.a “Calvados”).

Below shows the XR virtual machines running on each line card:

RP/0/RSP0/CPU0:ar0-ws.lab#show ver | inc IOS
Mon Aug 12 12:34:36.954 UTC
Cisco IOS XR Software, Version 6.5.3

RP/0/RSP0/CPU0:ar0-ws.lab#show platform vm
Mon Aug 12 12:34:12.766 UTC
Node name       Node type       Partner name    SW status       IP address
--------------- --------------- --------------- --------------- ---------------
0/0/CPU0        LC (ACTIVE)     NONE            FINAL Band
0/1/CPU0        LC (ACTIVE)     NONE            FINAL Band
0/RSP0/CPU0     RP (ACTIVE)     NONE            FINAL Band

RP/0/RSP0/CPU0:ar0-ws.bllab#admin show sdr

SDR: default-sdr
Location IP Address Status Boot Count Time Started
0/0/VM1 RUNNING 5 08/12/2019 10:57:51
0/RSP0/VM1 RUNNING 5 08/12/2019 10:58:01
0/1/VM1 RUNNING 5 08/12/2019 10:57:49


The “run” command connects into the XR VM running on the RP/RSP card:

Mon Aug 12 12:35:34.762 UTC


From there one can connect using the IPs from the “show platform vm” command to XR VM running on the line cards:

Warning: Permanently added '' (ECDSA) to the list of known hosts.

Connection to closed.

Warning: Permanently added '' (ECDSA) to the list of known hosts.

Connection to closed.



When in admin mode, “run” will connect into the Sysadmin “Calvados” VM:

Mon Aug 12 12:39:49.349 UTC
labuser connected from using console on ar0-ws.lab

sysadmin-vm:0_RSP0# run
Mon Aug  12 12:39:50.850 UTC



When in admin mode, “attach location” will connect into the Sysadmin VM on each linecard:

sysadmin-vm:0_RSP0# attach location 0/0
Mon Aug  12 12:45:14.579 UTC
Last login: Mon Aug 12 12:44:42 2019 from

[sysadmin-vm:0_0:~]$ exit