4.13 Packet Processing During Initialization
The following flow chart for packet processing during initialization illustrates the packet processing rules used by the client immediately after having sent a Describe Request. The processing rules corresponding to this flow chart are in sections 3.1.5.4 and 3.1.5.5. The rules for processing $M and $H packets are shown in a separate flow chart in section 4.13.1.

Figure 19: Flow chart for packet processing during initialization