The following steps must be performed to migrate from a non-MT environment to an MT environment.
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Assume that the entire network is not an IPv6 IS-IS MT environment, and ensure that all the routes are correct.
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Use the
multi-topology command with the
transition parameter to enable transition mode on each router one by one, and ensure that all the routes are correct.
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After all the routers are in transition mode, use the
no multi-topology command with the
transition parameter to disable transition mode on each router one by one. Ensure that all the routes are correct.
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Change the topology to make IPv4 and IPv6 different.
