A communication session between a first communication device and a second communication device is hosted in an Internet Protocol based packet data network. A plurality of flowerpot can be installed as a first row by a retaining rod to pass through all hooks of the flowerpots; and the water tubes of the flowerpot are connected one by one. If relevant data is present, such data may be transformed, transferred and combined with data in the operational datastore. During a back-end testing procedure, the results of testing a normal memory element may be masked if the normal memory element has been replaced by a redundant memory element. The second multidimensional gamut mapping includes a mapping from the neutral color component of the device independent color space to the virtual black color component of the second device dependent color space. The warp yarn configuration may be represented by the expression x+y, where x is the number of successive needle positions in which a warp yarn is positioned in a flat stitch arrangement and y is the number of subsequent successive needle positions in which the same warp yarn is positioned in a round stitch arrangement.