You can migrate a network deployment environment from one version to another, without the need to reconfigure any components in the environment.
You can migrate a WebSphere ESB node that belongs to a cell to version 6.2 without removing the node from the cell.
Migrate the deployment manager first, before migrating any base nodes in the cell.
Use the same cell name when migrating from version 6.0.x or 6.1.x to version 6.2 . If you use a different cell name, federated nodes cannot successfully migrate to the version 6.2 cell.
Migrating a base WebSphere ESB version 6.2 node that is within a cell also migrates the node agent to version 6.2. A cell can have some version 6.2 and other nodes that are at version 6.0.x or 6.1.x.