RTP2 entry for RTP PAB dispatch (Part 2)
- Entry:
- RTP2
- VIT option:
- HPR
- Event:
- Dispatch of a rapid transport protocol (RTP) PAB
- VIT processing module:
- ISTITCHR
This trace record is a continuation of the RTP entry.
- Byte (hex)
- Contents
- 00–03
- Record ID: C"RTP2"
- 04–05
- RTP flags Byte 1
- Bit
- Meaning
1... ....- This RTP uses a CoS of CPSVCMG.
.1.. ....- This RTP uses a CoS of RSETUP.
..1. ....- Remote node is a network node (valid only for CPSVCMG RTPs).
...1 ....- Remote node is in this native subnet (valid only for CPSVCMG RTPs).
.... 1...- Remote node is border node (valid only for CPSVCMG RTPs).
.... .11.- Component initiating pipe termination.
.... ...1- Nonmobile endpoint is performing a last ditch path switch attempt.
Byte 2- Bit
- Meaning
1... ....- Waiting for Route_Setup reply during path switch state
...1 ....
- Path switch due to a PSRETRY IMMED
.xx. ....- Adaptive Rate Based Algorithm Used
- 00
- ARB Mode Algorithm
- 01
- ARB Responsive Mode Algorithm
- 10
- ARB Progressive Mode Algorithm
- .... x...
- Unused; available
.... .xxx- Backpressure reason code (valid only when RPN_BACK_PRESSURE is
on. See byte 6, bit 3 in the RTP entry)
- B'001'
- Path switch in progress
- B'010'
- Send queue backed up (congested)
- B'011'
- Storage shortage
- B'100'
- Stalled RTP pipe
- B'101'
- Wait-for-acknowledgement queue maximum reached
- 06–07
- Number of slowdowns not honored
- 08–09
- Last status number transmitted
- 0A–0B
- Last status number received
- 0C–0D
- Last status number echoed correctly by partner
- 0E–0F
- Number of NLPs on out of sequence queue
- 10–11
- Number of NLPs on inbound work queue
- 12–13
- Number of NLPs on outbound work queue
- 14–15
- Number of NLPs on waiting for acknowledgement queue
- 16–17
- Number of NLPs on waiting to send queue
- 18–1B
- Number of bytes on waiting for acknowledgement queue
- 1C–1F
- Number of NLPs sent