If the first stack is configured with VIPARANGE MOVEABLE NONDISRUPTIVE,
the following events occur:
- The DVIPA ownership is immediately transferred to the second stack
which adds the DVIPA to its HOME list and dynamically notifies the
routers.
- At the same time, the first stack notifies the routers that it
no longer is the owner of the DVIPA, and puts the DVIPA into moving status.
The DVIPA remains in moving status (and
in the first stack's HOME list) until the DVIPA is deleted on that
stack with the VIPADELETE profile statement or the SIOCSVIPA or SIOCSVIPA6
ioctl DELETE option.
- Existing connections on the first stack are preserved. If the
second stack receives packets intended for existing connections,
it will route the packets to the first stack.
Notes: - To ensure preservation of existing connections on the prior owning
stack, you must define DYNAMICXCF on both stacks, on the IPCONFIG
statement for IPv4 dynamic VIPAs or on the IPCONFIG6 statement for
IPv6 dynamic VIPAs.
- NONDISRUPTIVE is the default for V2R10 and later.
- Both stacks must be running V2R10 or later to get non-disruptive
behavior. If either stack is running V2R8, the result will be as
described in VIPARANGE (DEFINE) MOVEABLE DISRUPTIVE.