[OpenIndiana-discuss] Help needed to understand situation due to one network connection gone down global zone ok but local zone vNIC status says UP

[Sanjay Pokhriyal via openindiana-discuss]

Hi,We faced an outage issue where one of the network connection went down. In our setup we have two NICs and two local zones were created.Global zone was showing link status as down but in local zones vNIC were showing its STATE as UP.Due to this it never switched to secondary connection and we were out of connectivity for hours.
please help us to understand how local zone can sync its status with global zone or details if we need to tweak/change our setup considerably.
# uname -aSunOS ss2-p1 5.11 illumos-47b8d4b884 i86pc i386 i86pc Solaris## dladm show-physLINK         MEDIA                STATE      SPEED  DUPLEX    DEVICEixgbe0       Ethernet             up         10000  full      ixgbe0ixgbe1       Ethernet             up         10000  full      ixgbe1## dladm show-linkLINK        CLASS     MTU    STATE    BRIDGE     OVERixgbe0      phys      1500   up       --         --ixgbe1      phys      1500   up       --         --ixgbe0vnic65 vnic     1500   up       --         ixgbe0ixgbe0vnic66 vnic     1500   up       --         ixgbe0ixgbe1vnic65 vnic     1500   up       --         ixgbe1ixgbe1vnic66 vnic     1500   up       --         ixgbe1### zoneadm list -vc  ID NAME             STATUS     PATH                           BRAND    IP   0 global           running    /                              ipkg     shared  11 ss2-p1-Lz1-test1 running    /export/home/ss2-p1-Lz1-test1  ipkg     excl  13 ss2-p1-Lz1-test2 running    /export/home/ss2-p1-Lz1-test2  ipkg     excl##
Thanks in advance Regards,Sanjay

[Till Wegmüller]

Hi Sanjay

The described behaviour makes sense for my understanding of Network
devices. For a Link failover you will need to have a property on a Bond
or A link aggregation. A VNIC does not propagate these properties.
Imagine it being a virtual cable to a virtual switch. Or in this case
the nic. So long as that switch runs the Connection state shows as UP.
Because the connection state to it's next hop ( the NIC in your case) is
up. If the Uplink of the Switch is down you will need to monitor that on
the Switch. Or the Physical NIC in this case.

Hope this helps
Greetings
Till

Post by Sanjay Pokhriyal via openindiana-discuss
Hi,We faced an outage issue where one of the network connection went down. In our setup we have two NICs and two local zones were created.Global zone was showing link status as down but in local zones vNIC were showing its STATE as UP.Due to this it never switched to secondary connection and we were out of connectivity for hours.
please help us to understand how local zone can sync its status with global zone or details if we need to tweak/change our setup considerably.
# uname -aSunOS ss2-p1 5.11 illumos-47b8d4b884 i86pc i386 i86pc Solaris## dladm show-physLINK         MEDIA                STATE      SPEED  DUPLEX    DEVICEixgbe0       Ethernet             up         10000  full      ixgbe0ixgbe1       Ethernet             up         10000  full      ixgbe1## dladm show-linkLINK        CLASS     MTU    STATE    BRIDGE     OVERixgbe0      phys      1500   up       --         --ixgbe1      phys      1500   up       --         --ixgbe0vnic65 vnic     1500   up       --         ixgbe0ixgbe0vnic66 vnic     1500   up       --         ixgbe0ixgbe1vnic65 vnic     1500   up       --         ixgbe1ixgbe1vnic66 vnic     1500   up       --         ixgbe1### zoneadm list -vc  ID NAME             STATUS     PATH                           BRAND    IP   0 global           running    /                              ipkg     shared  11 ss2-p1-Lz1-test1 running    /export/home/ss2-p1-Lz1-test1  ipkg     excl  13 ss2-p1-Lz1-test2 running    /export/home/ss2-p1-Lz1-test2  ipkg     excl##
Thanks in advance Regards,Sanjay
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