This video shows the install process, the configuration and use of the GeoCat Bridge extension and the resulting metadata and map services configured on GeoServer through the GeoNetwork opensource user interface. (It can also be viewed in HD quality). Purpose:

• Publish shapefiles, ArcSDE data and gridded data on GeoServer while maintaining the complex symbology created in ESRI® ArcMap (ArcView, ArcEditor or ArcInfo).
• Publish metadata for each data layer in ISO format (a.o. for INSPIRE) on the GeoNetwork opensource catalog to publish as OGC CSW et cetera.

Read more about Bridge.