Uploaded image for project: 'Migration Toolkit for Virtualization'
  1. Migration Toolkit for Virtualization
  2. MTV-2025

When migrating VMs with multiple NICs when mapping the order must match that of the source VM

XMLWordPrintable

    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Major Major
    • 2.9.0
    • 2.7.9
    • Guest

      VMs with multiple NICs must be mapped in the same sequence from the source as what that guestOS shows to maintain the correct eth#. The MAC addresses will be interchanged

      This is the configuration of the VM on RHV:
      ~~~
      3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master ovs-system state UP group default qlen 1000
      link/ether 56:6f:c8:78:00:7e brd ff:ff:ff:ff:ff:ff
      altname enp0s4
      altname ens4
      inet6 fe80::546f:c8ff:XXXX:XX/64 scope link
      valid_lft forever preferred_lft forever

      6: eth4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
      link/ether 56:6f:c8:78:00:28 brd ff:ff:ff:ff:ff:ff
      altname enp0s12
      altname ens12
      inet 172.21.32.XX/26 brd 172.21.32.XX scope global noprefixroute eth4
      valid_lft forever preferred_lft forever
      inet6 fe80::e8d3:964c:XXXX:XXXX/64 scope link noprefixroute
      valid_lft forever preferred_lft forever
      ~~~

      After the migration, we see that the MAC addresses for both eth1 and eth4 have swapped
      ~~~~
      3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master ovs-system state UP group default qlen 1000
      link/ether 56:6f:c8:78:00:28 brd ff:ff:ff:ff:ff:ff
      altname enp2s0
      inet6 fe80::546f:c8ff:XXXX:XX/64 scope link
      valid_lft forever preferred_lft forever

      eth4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
      link/ether 56:6f:c8:78:00:7e brd ff:ff:ff:ff:ff:ff
      altname enp5s0
      inet 172.21.32.XX/26 brd 172.21.32.XX scope global noprefixroute eth4
      valid_lft forever preferred_lft forever
      inet6 fe80::e8d3:964c:XXXX:XXXX/64 scope link noprefixroute
      valid_lft forever preferred_lft forever
      ~~~

              rh-ee-ehazan Elad Hazan
              rhn-support-schandle Samuel Chandler
              Chenli Hu Chenli Hu
              Votes:
              0 Vote for this issue
              Watchers:
              10 Start watching this issue

                Created:
                Updated:
                Resolved: