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TIBCO GridServer® 7.1.0

# Enabling Broker Spanning on a Driver

Broker Spanning is enabled at the Driver level. When enabled, all Services are panned over all Brokers. To enable Broker Spanning on a Driver, set `DSBrokerList` to a semicolon-delimited string of Broker names for all the Brokers you want to span.

For example:

    DSBrokerList=London1;London2;Cambridge

Note that you must allow the Driver on all Brokers in the list.

You can also set `DSBrokerList` to the wildcard character of `*`. This sets the list to all Brokers on which the Driver has the Execute Services permission. This includes offline Brokers.

When Broker Spanning is enabled, the Driver submits an independent Service for each of the Brokers specified in `DSBrokerList`. The Services submitted to each of the Brokers are separate entities, but for the convenience of the user, have the same Service ID. This allows the user to reference the Services easily across the Brokers when using the Dashboard. While Service IDs for the Broker Spanning Services are the same across all spanned Brokers, the Task IDs for the spanned Service are unique across all spanned Brokers and the Task ID is maintained if the task is moved across spanned Brokers.

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