1. Concept and architecture
   1. Load balancer extension
      1. Definition
         1. load balancer
         2. bundle assignment (Dynamic assignments)
         3. split
         4. unload (shed)
            1. Strategies
      2. Workflow
      3. Types
         1. Commonalities
         2. Differences
      4. Use cases
      5. Benefits
      6. Related topics
      7. What is it? Who use it? Why use it? When use it?
2. Observability
   1. Metrics
      1. LoadBalancing metrics
         1. Best practice (recommended usage and corresponding scenarios)
         2. Related topics
      2. Bundle assign metrics
         1. (Same as above if any)
      3. BundleUnloading metrics
      4. BundleSplit metrics
      5. ServiceUnitStateChannel metrics
3. Administration
   1. Load balance
      1. Use load balance extension
         1. How to use it?
            1. 1.0
            2. Manual
            3. 1. Create namespace with assigned bundles
            4. 2. lookup
            5. 3. Unload topics and bundles
            6. 4. split
            7. Automatic
            8. Steps (missing now)
            9. 2.0
            10. Manual
            11. Automatic
            12. Steps (missing now)
            13. How to enable it?
            14. Configurations
            15. Best practice
         2. How to migrate it?
            1. How to migrate from old to new?
            2. Steps
            3. Considerations
            4. How to migrate from new to old?
            5. Steps
            6. Considerations
            7. If fail to roll back to old, what will happen?
            8. If use old and new simultaneously, what will happen?
            9. ...
         3. How to monitor it?
            1. Steps
            2. Metrics
         4. Related topics
         5. How to use it?
4. Load Balance Extension
   1. What is it?
   2. Who use it?
   3. Why use it?
   4. When use it?
   5. How to use it?
      1. Steps
         1. How to enable it?
         2. Configurations
         3. ...
      2. Best practice
   6. How to migrate it?
      1. How to migrate from old to new?
         1. Steps
         2. Considerations
      2. How to migrate from new to old?
         1. Steps
         2. Considerations
            1. If fail to roll back to old, what will happen?
            2. If use old and new simultaneously, what will happen?
            3. ...
   7. How to monitor it?
      1. Metrics
      2. Steps
5. Pulsar Reference Site
   1. Configuration
      1. Pulsar
         1. Broker
   2. ...
6. Reference topic
7. Task topic
8. Concept topic
9. Context