3.2.1.5.3.3 IN Channel Recycling 2

The IN channel recycling 2 protocol sequence illustrates recycling of a virtual IN channel. The name of this sequence is IN_R2. This protocol sequence is very similar to protocol sequence IN_R1. They start identically, and only when processing IN_R1/A1 RTS PDU do they diverge based on dynamic decisions made by the inbound proxy as defined in section 3.2.3.5.5. This protocol sequence has a single PDU group: A.

The following diagram depicts the sequence of events in the IN channel recycling 2 protocol.

Figure 19: IN channel recycling 2 protocol sequence

The references for the PDUs used in this protocol sequence are as follows.

Diagram label	PDU name and reference section
IN channel request	IN Channel Request (section 2.1.2.1.1)
A1	IN_R2/A1 RTS PDU (section 2.2.4.18)
A2	IN_R2/A2 RTS PDU (section 2.2.4.19)
A3	IN_R2/A3 RTS PDU (section 2.2.4.20)
A4	IN_R2/A4 RTS PDU (section 2.2.4.21)
A5	IN_R2/A5 RTS PDU (section 2.2.4.22)

The processing rules for this protocol sequence are specified in sections 3.2.2 through 3.2.5 of this specification.

Note In an effort to improve readability, the establishments of TCP connections are not shown in the figure.