Part of lp.registry.interfaces
| Class | MirrorContent | The content that is mirrored. |
| Class | MirrorSpeed | The speed of a given mirror. |
| Class | MirrorFreshness | The freshness of a given mirror's content. |
| Class | MirrorStatus | The status of a mirror. |
| Class | DistributionMirrorNameField | Undocumented |
| Class | DistroMirrorURIField | Base class for the DistributionMirror unique URI fields. |
| Class | DistroMirrorHTTPURIField | Undocumented |
| Class | DistroMirrorFTPURIField | Undocumented |
| Class | DistroMirrorRsyncURIField | Undocumented |
| Class | UnableToFetchCDImageFileList | Couldn't fetch the file list needed for probing cdimage mirrors. |
| Interface | IDistributionMirrorSet | The set of DistributionMirrors |
| Interface | IMirrorDistroArchSeries | The mirror of the packages of a given Distro Arch Series |
| Interface | IMirrorDistroSeriesSource | The mirror of a given Distro Series |
| Interface | IMirrorCDImageDistroSeries | The mirror of a given CD/DVD image |
| Interface | IMirrorProbeRecord | A record stored when a mirror is probed. |