The Vuze DHT implements some security measures to make indexing more. This works well enough as there is very little. To join a swarm a user first has to find. It looks at file sizes as a way to match files. The way Vuze goes about this is currently rather rudimentary. In the example, swarm merging added an extra 1MB/s to the download. Go to Tools->Options->Plugins->Swarm Discoveries and ensure that the Enable the Swarm Discoveries UI option is selected.

РџРѕРґРґРµСЂР¶РёРІР°РµС‚ РјСѓР»СЊС‚РёР·Р°РіСЂСѓР·РєСѓ, РЅР°СЃС‚СЂРѕР№РєСѓ РѕС‡РµСЂРµРґРё/РїСЂРёРѕСЂРёС‚РµС‚Р°, РґРѕРєР°С‡РєСѓ РЅРµРґРѕРєР°С‡РµРЅРЅС‹С… С„СЂР°РіРјРµРЅС‚РѕРІ, РїРѕРёСЃРє. If you close the Swarm Discoveries entry in the side bar then you can re-open it via the View menu - select Swarm Discoveries from it If this doesnt work then you may have disabled the interface in the plugin configuration.

Vuze swarm merge