international airport abbreviation for Canberra, Australia. One imagines that Captive Bead Rings are quite popular amongst the locals, esp. in the Ministry of Finance.

A military acronym for Chemical, Biological, or Radiological. Generally used to refer to those types of attacks.

Also stands for Constant BitRate when encoding mp3s. The opposite of VBR which allocates as many bits per frame as are deemed necessary by the encoder.

• Cell delay: zero tolerance
• Cell loss: very little tolerance

ATM QoS class for high-availability traffic. It is used for connections which require a fixed amount of bandwidth consistently during communication. The amount of bandwidth is specified in the PCR, which is the only mandatory property of a CBR PVC. The main intention of CBR is for real time communication which has explicitly specified limitations on delay and cell loss.

Required Parameters: PCR

Examples: Telephone conversations (not packetized), audio distribution (e.g. radio), videoconferencing