1 Protocol Stacks and Dumps Gcom, Inc. Training Presentation Providing Solutions for the World of...

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Protocol Stacks and Dumps

Gcom, Inc. Training Presentation

Providing Solutions for the Worldof Data Communications

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Gcom_cdi -UGcom_cdi -t

Gcom_ivp counter-trace

Gcom_ivp sca-bsc-trace

Errors ALC/UTS

Gcom_dlpi -UGcom_dlpi -tGcom_dlpi -u

Errors

Gcom_npi -VGcom_npi -t

Gcom_ivp npi-summary

Gcom_ss -UwGcom_ss -u

Gcom_ss -UwGcom_ss -u

Flow Chart for Reading Gcom_dump

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Protocol Stacks and DumpsTable of Contents

STREAMS Layers

Management Command Summary

Ring System -- Tunneling

Trace Table Commands

Gcom_npi -t

Gcom_dlpi -t

Gcom_cdi -t -- X.25, Error Conditions, ALC


Gcom_ivp driver-counters


Gcom_ivp sca-intr-trace

ALC Garbled Message

Gcom_cdi -U Gcom_cdi -u -- X.25, ALC, UTS

Gcom_dlpi -L Gcom_dlpi -l

Gcom_dlpi -U Gcom_dlpi -u

Gcom_npi -L Gcom_npi -l Flow Control, Throughput Class

Gcom_npi -U Gcom_npi -u Gcom_npi -V


Gcom_ss -Uw

Gcom_ss -u

4

Communication Device InterfaceInterface to physical layer

Data Link Provider InterfaceInterface to link layer


Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

Frame Level

CDI User

NPI Provider

Packet Level

DLPI User

User

Kernel

Gcom_ssd

Network Provider InterfaceInterface to network layer

STREAMS Layers

X.25 Stack

STREAMS drivers are in the kernel

5


Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

Frame Level

CDI User

NPI Provider

Packet Level

DLPI User

User

Kernel

Gcom_ssd

X.25 StackThree Layers

STREAMS Layers

X.25 Stack

6


Digi Sync/570

CDI Provider

Digi Driver

User

Kernel

Gcom_ssd

ALC or UTS StackOne Layer

STREAMS Layers

ALC or UTS

7


Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

Frame Level

CDI User

NPI Provider

Packet Level

DLPI User

User

Kernel

Gcom_ssdSTREAMS Layers

X.25 Stack + ALC/UTS

X.25 StackThree Layers

ALC or UTS StackOne Layer

You can configure X.25 onone port and ALC or UTS

on another port simultaneously

8


Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

Frame Level

CDI User

NPI Provider

Packet Level

DLPI User

User

Kernel

Gcom_ssd

Gcom_cdi -U -u -t

Management Commands

Gcom_dlpi -U -u -t

Gcom_npi -U -uGcom_ivp npi-summary

Gcom_dlpi -L -l -t

Gcom_npi -L -l -t

Gcom_ss -U -Uw

Gcom_ivp sca-intr-traceGcom_ivp counter-traceGcom_ivp driver-countersGcom_ivp -IGcom_ivp sca-bsc-trace

9


Ring System X.25 Stack

Processes

intsx25.1

Driver

frmlvl.1

pktlvl.1

Ring System ProcessesEach process has a numerical Id.

Suffix “.1” indicatesprocess instance number

Historical Note: Gcom’s protocol stacks wereimplemented using the Ring System prior to

being ported to STREAMS. The Ring Systemis still present within the STREAMS implementation.

10



Connectivity

intsx25.1

Driver

frmlvl.1

pktlvl.1

Logical Data Flow

11

From and To are process Ids

Ring data struct called Token



Scheduling Ring

intsx25.1

Driver

frmlvl.1

pktlvl.1

Ring

Data flows through the Ring

Remove Token from Ring and call process entry point

Insert Token in Ring and return

From To Command Buffer ptr

Buffer

Token

12


X.25 Stack

STREAMS and Ring system

Ring

Data flows directlybetween Ring System processes

via the Ring

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1

Buffers from driverflow through Ring

STREAMS linkage notused for data flow

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Protocol Stacks and DumpsX.25 Stack

STREAMS and Ring system

Logical data flow view

We call this “tunneling”

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

Ring System Tokens flowfrom driver to intsx25

Ring System Tokens flowbetween intsx25 and frmlvl.

These are Raw Frames.

Ring System Tokens flowbetween frmlvl and pktlvl.

These are I-Frames.

Logical channel data sentupstream as STREAMS.

See next slide.

14


X.25 Stack

Detail of NPI Provider

User

Kernel

Gcom_ssd

NPI Provider

DLPI User

pktlvl.1

I-Frames from LAPBarrive from below

X.25 packet level state machine resides here

Logical channels come outthe top

Convert back to STREAMSat top of protocol stack

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X.25 Stack

Trace Table Commands

Gcom_cdi -tShows this Token traffic

as raw buffers

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

Gcom_dlpi -tShows this Token trafficas decoded frame types

Gcom_npi -tShows this Token trafficas decoded packet types

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Gcom_npi -t

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

76280000 Xmt Pkt ( 15) 10 10 0b 03 32 10 08 02 aa 42 08 08 43 02 02 00 Call Req, LC=1676280050 Rcv Pkt ( 13) 10 10 0f 00 08 02 aa 42 08 08 43 02 02 00 00 00 Call Acpt, LC=1676280050 Xmt Pkt ( 103) 10 10 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d Data(0,0), LC=1676280100 Rcv Pkt ( 103) 10 10 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d Data(0,0), LC=1676280100 Xmt Pkt ( 103) 10 10 02 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e Data(0,1), LC=1676280100 Rcv Pkt ( 3) 10 10 41 00 00 00 00 00 00 00 00 00 00 00 00 00 RR(2), LC=16

Transmit or Receive

Time Stamp milli-secByte Count

Bytes of Packet

Data(P(R), P(S))

RR(P(R))Logical Channel Number

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Gcom_dlpi -t

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

76280400 Xmt Frame ( 7) 01 44 10 10 13 00 00 00 00 00 00 00 00 00 00 00 I-Frame(2,2)76280400 Rcv Frame ( 5) 03 64 10 10 17 00 00 00 00 00 00 00 00 00 00 00 I-Frame(3,2)76280600 Xmt Frame ( 2) 03 61 00 00 00 00 00 00 00 00 00 00 00 00 00 00 RR(3)76283400 Xmt Frame ( 2) 01 71 00 00 00 00 00 00 00 00 00 00 00 00 00 00 RR*(3)

Transmit or Receive

Time Stamp milli-secByte Count

Bytes of Frame

I-Frame(N(R), N(S))RR(N(R))

“*” means Poll/Finalbit set

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Gcom_cdi -t

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

76278250 Snd Bfr ( 2) 01 31 00 00 07 00 00 00 05 0e 00 00 f7 ff 00 0076278250 Rcv Bfr ( 2) 03 31 00 00 04 00 00 00 06 0e 00 00 00 00 00 0076278250 Snd Tkn 04->07 Frm Rcvd extra=fff7 bfrp=d38fcda4 othr=076278250 Snd Bfr ( 2) 03 31 00 00 07 00 00 00 02 0e 00 00 00 00 00 0076278250 Rcv Tkn 07->04 Rplce Bfr extra=0000 bfrp=0 othr=076278250 Rcv Bfr ( 2) 01 31 00 00 07 00 00 00 02 0e 00 00 00 00 00 0076278250 Snd Tkn 04->07 Frm Rcvd extra=fff7 bfrp=d384a244 othr=076278250 Rcv Tkn 07->04 Rplce Bfr extra=0000 bfrp=0 othr=076278250 Rcv Tkn 04->04 Frm Xmitted extra=0000 bfrp=d3c80b24 othr=076278250 Snd Tkn 04->07 Frm Xmitted extra=0000 bfrp=d3c80b24 othr=7

Transmit or Receiverelative to CDI Provider

Time Stamp milli-secByte Count Bytes of Frame

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Gcom_cdi -t

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2


Snd Bfrfrom frmlvl

request to transmit frame

Rcv Tkn -- Frm Xmittedfrom driver

frame has been transmitted

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Gcom_cdi -t

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2


Rcv Bfrfrom driver

frame just received

Snd Tkn -- Frm Rcvdto frmlvl

send received frame upstream

Rcv Tkn -- Rplce Bfrfrom frmlvl

frame processed,replace buffer in driver

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Gcom_cdi -t

Error: No attempt to send frames

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2


Snd BfrIf this is missing then frmlvl

is not attempting to send frames. Look at Gcom_dlpi -t for more information

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Gcom_cdi -t

Error: Frames won’t transmit

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2


Rcv Tkn -- Frm XmittedIf this is missing then the drivercould not transmit the frame.

Look for watchdog timer expiration count.Check clocking.Check cables.

Check modem/DSU settings.

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Gcom_cdi -t

Error: No frames received

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2


Rcv BfrIf this is missing then the driver

never received any frames. Check clocking.Check cables.

Check modem/DSU settings.Observe Rx data with line monitor.

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ALC Stack

Gcom_cdi -t

1854059750 Snd Bfr ( 2) 0f 37 00 00 04 00 00 00 02 0e 00 00 00 00 00 001854059750 Rcv Tkn 03->03 Frm Xmitted extra=0000 bfrp=d7d6ff24 othr=01854059750 Snd Tkn 03->04 Frm Xmitted extra=0000 bfrp=d7d6ff24 othr=0

Digi Sync/570

Digi Driver

User

Kernel

Gcom_ssd

CDI Provider

intsx25.2

CDI_Prov.2

Snd Bfrfrom CDI_Prov

request to transmit msg

CDI Providerhas Ring Sys

process

Rcv Tkn -- Frm Xmittedfrom driver


Snd Tkn -- Frm Xmittedto CDI_prov


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ALC Stack

Gcom_cdi -t

1854059800 Rcv Bfr ( 3) 0f 2f 1d 00 03 00 00 00 06 0e 00 00 00 00 00 001854059800 Snd Tkn 03->04 Frm Rcvd extra=fff7 bfrp=d6e7c124 othr=01854059800 Rcv Tkn 04->03 Rplce Bfr extra=0000 bfrp=0 othr=0

Digi Sync/570

Digi Driver

User

Kernel

Gcom_ssd

CDI Provider

intsx25.2

CDI_Prov.2

Rcv Bfrfrom driver

msg just received

Snd Tkn -- Frm Rcvdto CDI_Prov

send received msg upstream

Rcv Tkn -- Rplce Bfrfrom CDI_Provmsg processed,

replace buffer in driver

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Digi Driver

DTR+ RTS- DSR+ DCD- CTS+DTR+ RTS+ DSR+ DCD- CTS+Tx: 3f 3e 0f 37-EOT 3fDTR+ RTS- DSR+ DCD- CTS+

Protocol Stacks and DumpsALC Stack


Transmit Operations

Digi Sync/570

User

Kernel

Gcom_ssd

CDI Provider

intsx25.2

CDI_Prov.2

One trace buffer is shared by all ALC/UTS ports.

Difficult to understand if morethan one line is running.

Modem signalsAssert RTSCTS is on

Tx = Transmit ALC characters.Six bit in hex in internal form.

Drop RTS

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Receive Operations

Digi Driver

Digi Sync/570

User

Kernel

Gcom_ssd

CDI Provider

intsx25.2

CDI_Prov.2 Tx: 3f 3e 0f 12-DC2 1d 29 3f 3f 3fRx: 0f 12-DC2 1d 29

Rx = Receive ALC characters.Six bit in hex in internal form.

This is a back to back configuration.Note that Tx chars appear in Rx

Syncs

CCC

Idle PAD

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CDI Provider

Digi Driver

intsx25.1

Digi Sync/570

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

sca_hw_intr_cnt = 0sca_hw_dev_hndlr_cnt = 135456sca_hw_dev_hndlr_brd_cnt = 339036sca_hw_dev_hndlr_bad_brd_cnt= 0sca_hw_dev_hndlr_prt_cnt = 339036sca_hw_dev_hndlr_null_vect_cnt = 135456sca_hw_dev_hndlr_init_run_cnt = 0sca_hw_dev_hndlr_ix25_cnt = 26148sca_hw_dev_hndlr_ix25_waiting_cnt = 10sca_hw_dev_hndlr_ix25_locked_cnt = 0sca_hw_dev_hndlr_ix25_fistrt_cnt = 0sca_hw_dev_hndlr_ix25_fostrt_cnt = 0sca_intr_cnt = 203580sca_poll_intr_cnt = 0sca_nv_intr_cnt = 0sca_intr_no_vect = 0sca_nv_loop_counter = 0sca_bad_vector = 0


X.25 Stack


Digi driver interruptservice routine counts.

Non-zero means interruptsare being processed.

All protocol stacks use thesame counters

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CDI Provider

Digi Driver

intsx25.1

Digi Sync/570

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1



Continued

Normal receive interrupts for X.25

sca_tx_intr_cnt = 0sca_rx_intr_cnt = 0sca_txdmib_intr_cnt = 0sca_rxdmib_intr_cnt = 101757sca_rxdmia_intr_cnt = 0sca_rxdma_inside_txdma_cnt = 0sca_txtmr_intr_cnt = 101823sca_start_txtmr_cnt = 101823sca_stop_txtmr_cnt = 101823sca_txtmr_tbl_empty_cnt = 50890sca_ifdtmr_intr_cnt = 0

Normal transmit interrupts for X.25Timer driven.

30

Digi Driver

Digi Sync/570

User

Kernel

Gcom_ssd

CDI Provider

intsx25.2

CDI_Prov.2


ALC/UTS Stack


Normal transmit interrupts for ALC/UTS

sca_tx_intr_cnt = 12851410sca_rx_intr_cnt = 927795808sca_txdmib_intr_cnt = 0sca_rxdmib_intr_cnt = 0sca_rxdmia_intr_cnt = 0sca_rxdma_inside_txdma_cnt = 0sca_txtmr_intr_cnt = 0sca_start_txtmr_cnt = 0sca_stop_txtmr_cnt = 0sca_txtmr_tbl_empty_cnt = 0sca_ifdtmr_intr_cnt = 0

Normal receive interrupts for ALC/UTS

Large number comes fromcontinuous scanning for syncs

No DMA interrupts for ALC/UTS

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Digi Driver

Digi Sync/570

User

Kernel

Gcom_ssd

CDI Provider

intsx25.2

CDI_Prov.2



Continued

Counters for ALC only

sca_alc_xmt_cnt = 51863415sca_alc_xmt_unrn_cnt = 12834283sca_alc_xmt_unrn_idle_cnt = 12834283sca_alc_xmt_unrn_noie_cnt = 18sca_alc_rcv_cnt = 927795944sca_alc_bfsm_srch = 887591561sca_alc_bfsm_sync = 12841939sca_alc_rx_idle_cnt = 561sca_alc_rx_srch_cnt = 15717539sca_alc_garbled_cnt = 15sca_alc_xmt_bit_fsm_chr_cnt = 64697710sca_alc_xmt_bit_fsm_byte_cnt = 38914775sca_alc_rcv_bit_fsm_chr_cnt = 82139234sca_alc_rcv_bit_fsm_byte_cnt = 40204383

Note garbled message count.Indicates that badly formed

messages were received.

Bit scanning FSM counters

32

Digi Driver

Digi Sync/570

User

Kernel

Gcom_ssd

CDI Provider

intsx25.2

CDI_Prov.2



Continued

Histogram of ALC transmit statesCounts number of interrupts

in each state

sca_alc_tx_hist = 0 0 12834292 0 12834292 12834289 13269850 36284 25722992 0 0 0 0 0 0 0

0 TX_IDLE - Nothing transmitting1 Unused2 CTS_WAIT - Waiting for CTS3 TX_STRT - Start transmitting S14 TX_S2 - Transmit S25 TX_BYTE1 - Transmit 1st char of msg 6 TX_BYTES - Transmit msg chars7 TX_CCC - Transmit CCC char8 TX_PAD - Transmit idle line PAD after msg9 LINE_IDLE - Wait for line to become idle10-15 Unused

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Digi Driver

Digi Sync/570

User

Kernel

Gcom_ssd

CDI Provider

intsx25.2

CDI_Prov.2



Continued

Histogram of ALC receive statesCounts number of interrupts

in each state

sca_alc_rx_hist = 0 15690530 12841940 13109748 12815148 0 26784 12815145 0 1971259 12815143 26783 26754 0 0 0

0 RCV_IDLE - No message being received1 RCV_S1 - Receive 1st sync char2 RCV_S2 - Receive 2nd sync char3 RCV_FIRST - Receive 1st msg char4 RCV_GA - Receive char after initial GA5 Unused 6 RCV_IA1st - Received IA as 1st char7 RCV_IA2nd - Received IA after GA8 RCV_RS - Received RS after IA9 RCV_TA - Received TA after IA10 RCV_CCC - Receive CCC char11 RCV_CCCi - Receive CCC and continue12 RCV_CONT - Receive idle line or continuation msg13-15 Unused

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X.25, ALC or UTS Stack


CDI Provider

Digi Driver

intsx25.1

Digi Sync/570

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

Traces occurrences oferror conditions

Use to see when errors occurred

ivp counter-trace-1Start-Tim End-Tim Tx-Frms Rx-Frms Tx-Errs Rx-Errs Changes1519317950 1519327950 1527797 2124881 18 413761 CRC1519327950 1519337950 1527928 2125063 18 413781 CRC RAB1519337950 1519347950 1528047 2125251 18 413806 CRC1519347950 1519357950 1528264 2125554 18 413826 CRC1519357950 1519367950 1528447 2125835 18 413857 CRC1519367950 1519377950 1528555 2126009 18 413865 CRC

Time stamps in milli-seconds

Frame counters

Change events to error counters

XAB = Transmit abortXUN = Transmit underrunCRC = CRC errorRAB = Receive abortROV = Receiver overrunWDT = Watchdog timerMFL = Modem floodAFL = Abort flood

Error counters

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X.25 Stack


CDI Provider

Digi Driver

intsx25.1

Digi Sync/570

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

Traces interrupt service requests

1601246650 Tx-Strt: arg=0x0 (0), 03 31 00 001601246650 Xmt-DMA/DSR: 0x61 (97)1601246650 compute-IMVR: isr0=0 isr1=0 isr2=10 vector=1C1601246650 Vector: Vect=0x1C timer 0/21601246650 Tx-Fin/ST1: 0x51 (81)1601246650 compute-IMVR: isr0=0 isr1=2 isr2=0 vector=161601246650 Vector: Vect=0x16 Rx DMA normal end1601246650 Rx-Fin: arg=0x0 (0), 03 31 10 00

Time stamps in milli-seconds Start frame transmit

Transmit completefollows timer

interrupt

Timer Interruptfollowed by

transmit complete

First few bytes

36


X.25 Stack


CDI Provider

Digi Driver

intsx25.1

Digi Sync/570

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1


1601246650 Tx-Strt: arg=0x0 (0), 03 31 00 001601246650 Xmt-DMA/DSR: 0x61 (97)1601246650 compute-IMVR: isr0=0 isr1=0 isr2=10 vector=1C1601246650 Vector: Vect=0x1C timer 0/21601246650 Tx-Fin/ST1: 0x51 (81)1601246650 compute-IMVR: isr0=0 isr1=2 isr2=0 vector=161601246650 Vector: Vect=0x16 Rx DMA normal end1601246650 Rx-Fin: arg=0x0 (0), 03 31 10 00


Frame received First few bytes

37

Digi Driver

Digi Sync/570

User

Kernel

Gcom_ssd

CDI Provider

intsx25.2

CDI_Prov.2


ALC Stack



1854090550 Tx-Start: arg=0x2 (2), 0F 37 49 501854090550 Tx-FSM: 0x2 (2), 0x2 (2)1854090550 Tx-Chr: 0x3 (3), 0x3F (63)1854090550 Tx-FSM: 0x4 (4), 0x2 (2)1854090550 Tx-Chr: 0x4 (4), 0x3E (62)1854090550 Tx-Byte: 0x58 (88), 0x0 (0)1854090550 Tx-FSM: 0x5 (5), 0x2 (2)1854090550 Tx-Chr: 0x6 (6), 0xF (15)1854090550 Tx-Byte: 0x18 (24), 0x38 (56)


Start frame transmit Transmit state machine

Transmit byte on line8-bits w/packed 6-bit chars

State Count

Transmit a character

State Char

38

Digi Driver

Digi Sync/570

User

Kernel

Gcom_ssd

CDI Provider

intsx25.2

CDI_Prov.2


ALC Stack



1854090550 Rx-Sync: 0xC (12), 0x800 (2048)1854090550 Rx-S1: 0x3F (63)1854090550 Rx-S2: 0x3E (62)1854090550 Rx-1st: 0xF (15)1854090550 Rx-GA: 0x2F (47)1854090550 Rx-IA2nd: 0x1D (29)1854090550 Rx-CCC: 0x39 (57)1854090550 Rx-Fin: arg=0x0 (0), 0F 2F 1D 04


Receive sync pattern Receive state machineReceiving syncs

Receive 1st char of msg

Finish received msgFirst few chars

39

Digi Driver

Digi Sync/570

User

Kernel

Gcom_ssd

CDI Provider

intsx25.2

CDI_Prov.2


ALC Stack

garbled message

This message appears in thecmessages file. Written by

the Digi driver in ALC mode.

1: ALC garbled msg: Not IA or GA state=3 ochr=052 chr=025 crc_err=1 #1728

Port number

Diagnostic message

Received characterin octal

Receive FSM state

Line number withinwithin driver. Useful

only to Gcom.

Diagnostic Messages:

Intial char not sync -- Initial character is neither S1 nor S2 Expected S2 char -- Garbage while expecting second sync character Not IA or GA -- Character is not a valid IA or the GA character Not IA or NIA -- Character is not a valid IA or the NIA character Not RS or TA -- Character is not a valid TA or the RS character Not EOM char -- Character after RS should be EOM but was not CCC error -- Check sum error

40

CDI Provider

Digi Driver

intsx25.1

Digi Sync/570

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1


X.25 Stack

Gcom_cdi -U

receive-errs xmt-errsUPA CDI_State Frames-out Frames-in wd mf af crc ovr abt und abt--- ------------- ---------- ---------- -- -- -- ---- ---- ---- ---- ---- 1 INPUT_ALLOWED 50880 50878 0 0 0 0 0 0 0 0 2 INPUT_ALLOWED 50878 50879 0 0 0 0 0 0 0 0

Should always beINPUT_ALLOWED

for X.25

wd -- Watch dog timermf -- Modem floodaf -- Abort flood crc -- CRC errors

ovr -- Receive over runabt -- Receive abort

und -- Transmit under runabt -- Transmit abort

41

Digi Driver

Digi Sync/570

User

Kernel

Gcom_ssd

CDI Provider

intsx25.2

CDI_Prov.2


ALC Stack

Gcom_cdi -U

receive-errs xmt-errsUPA CDI_State Frames-out Frames-in wd mf af crc ovr abt und abt--- ------------- ---------- ---------- -- -- -- ---- ---- ---- ---- ---- 1 INPUT_ALLOWED 8427 8977 0 0 0 0 0 0 0 0 2 *DRIVER-DOWN* 0 0 0 0 0 0 0 0 0 0

Indicates that Gcom_ssdhas connection open

to this port

wd -- Watch dog timermf -- Modem floodaf -- Abort flood crc -- CRC errors

ovr -- Receive over runabt -- Receive abort

und -- Transmit under runabt -- Transmit abort

Indicates that Gcom_ssddoes not have connection

open to this port

42

CDI Provider

Digi Driver

intsx25.1

Digi Sync/570

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1


X.25 Stack

Gcom_cdi -u

ix25prm.maxfrmsz = 1100ix25prm.ix25mode = non-DMA (0)ix25prm.frstart = 12ix25prm.ix25wrapflg = NONE (0)ix25prm.hdx_optns = 0ix25prm.rcv_bfrs = 16ix25prm.xmit_bfrs = 20ix25prm.rcv_bfr_size = 1100ix25prm.xmit_bfr_size = 1100ix25prm.ix25_optns = 0x00ix25prm.ix25_enb = 1ix25prm.ix25_retry = 4ix25prm.ix25_ifd = 0ix25prm.ix25_ll_optns = 0x00ix25prm.ix25_chip_type = HD64570 (13)ix25prm.rcv_dma = 0ix25prm.xmt_dma = 0ix25prm.ix25_code = NRZ (0)ix25prm.ix25_clks = TxC in, RxC in (0)ix25prm.baudrate = 64000

Ensure large enough

Mode=0 is HDLC

Ensure no loopback

Same value as maxfrmsz

Ensure NRZ encoding

External clocking

If ix25_clks=0, does not matterwhat this is

43

CDI Provider

Digi Driver

intsx25.1

Digi Sync/570

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1


X.25 Stack

Gcom_cdi -u

ix25prm.mdm_lim = 6ix25prm.mdm_msk = DTR+ RTS+ DSR- DCD- CTS- (0x03)ix25prm.wd_timer = 5000ix25prm.seq_end_dly = 0ix25prm.lt_dly = 0ix25prm.hertz = 9216000ix25prm.board_type = 0ix25prm.elect_if_type = 1ix25prm.ix25_noops = 0ix25prm.histsz = 160ix25prm.line = 1ix25prm.irq = 11ix25prm.port_addr = 0x01ix25prm.mem_addr = 0xfc040000ix25prm.cable_port = 1

Input signalsOutput signals

Same as UPA

Board Number

Port on board

44

Digi Driver

Digi Sync/570

User

Kernel

Gcom_ssd

CDI Provider

intsx25.2

CDI_Prov.2


ALC Stack

Gcom_cdi -u

ix25prm.maxfrmsz = 4096ix25prm.ix25mode = ALC (14)ix25prm.frstart = 16ix25prm.ix25wrapflg = NONE (0)ix25prm.hdx_optns = HDX - don't wait CTS, Half Duplex (3)ix25prm.rcv_bfrs = 20ix25prm.xmit_bfrs = 6ix25prm.rcv_bfr_size = 4096ix25prm.xmit_bfr_size = 4096ix25prm.ix25_optns = 0x00ix25prm.ix25_enb = 1ix25prm.ix25_retry = 4ix25prm.ix25_ifd = 1

Ensure large enoughMode=14 is ALC

Ensure no loopback


Ensure HDX is correct

100μs ticks after messagein full duplex mode

45

Digi Driver

Digi Sync/570

User

Kernel

Gcom_ssd

CDI Provider

intsx25.2

CDI_Prov.2


ALC Stack

Gcom_cdi -u

ix25prm.ix25_ll_optns = 0x18ix25prm.ix25_chip_type = HD64570 (13)ix25prm.rcv_dma = 0ix25prm.xmt_dma = 0ix25prm.ix25_code = NRZ (0)ix25prm.ix25_clks = TxC in, RxC in (0)ix25prm.baudrate = 9600

Ensure NRZ encodingExternal clocking


0x08 = Unused0x10 = Invert message bits0x20 = Include CCC in buffer0x40 = Invert idle bits

Change to 0x10

46

Digi Driver

Digi Sync/570

User

Kernel

Gcom_ssd

CDI Provider

intsx25.2

CDI_Prov.2


ALC Stack

Gcom_cdi -u

ix25prm.mdm_lim = 6ix25prm.mdm_msk = DTR+ RTS+ DSR- DCD- CTS- (0x03)ix25prm.wd_timer = 5000ix25prm.seq_end_dly = 1ix25prm.lt_dly = 4ix25prm.hertz = 9216000ix25prm.board_type = 0ix25prm.elect_if_type = 1ix25prm.ix25_noops = 0ix25prm.histsz = 166ix25prm.line = 1ix25prm.irq = 16ix25prm.port_addr = 0x01ix25prm.mem_addr = 0xf6040000ix25prm.cable_port = 1


Same as UPA

Board Number

Port on board

Number PAD chars

Not used

47

Digi Driver

Digi Sync/570

User

Kernel

Gcom_ssd

CDI Provider

intsx25.2

CDI_Prov.2


UTS Stack

Gcom_cdi -u

ix25prm.maxfrmsz = 4096ix25prm.ix25mode = hdx bisync uniscope (11)ix25prm.frstart = 16ix25prm.ix25wrapflg = NONE (0)ix25prm.hdx_optns = Half Duplex (1)ix25prm.rcv_bfrs = 20ix25prm.xmit_bfrs = 6ix25prm.rcv_bfr_size = 4096ix25prm.xmit_bfr_size = 4096ix25prm.ix25_optns = 0x00ix25prm.ix25_enb = 0ix25prm.ix25_retry = 4

Ensure large enough

Mode=11 is UTS

Ensure no loopback


UTS is half duplex

48

Digi Driver

Digi Sync/570

User

Kernel

Gcom_ssd

CDI Provider

intsx25.2

CDI_Prov.2


UTS Stack

Gcom_cdi -u

ix25prm.ix25_ll_optns = 0x28ix25prm.ix25_chip_type = HD64570 (13)ix25prm.rcv_dma = 0ix25prm.xmt_dma = 0ix25prm.ix25_code = NRZ (0)ix25prm.ix25_clks = TxC in, RxC in (0)ix25prm.baudrate = 19200

Ensure NRZ encoding

External clocking


0x08 = Unused0x20 = Odd parity0x40 = Even parity0x80 = No parity on SYN char

Change to 0x20

49

Digi Driver

Digi Sync/570

User

Kernel

Gcom_ssd

CDI Provider

intsx25.2

CDI_Prov.2


UTS Stack

Gcom_cdi -u

ix25prm.mdm_lim = 6ix25prm.mdm_msk = DTR+ RTS+ DSR- DCD- CTS- (0x03)ix25prm.wd_timer = 5000ix25prm.seq_end_dly = 1ix25prm.lt_dly = 4ix25prm.hertz = 9216000ix25prm.board_type = 0ix25prm.elect_if_type = 6ix25prm.ix25_noops = 0ix25prm.histsz = 166ix25prm.line = 1ix25prm.irq = 10ix25prm.port_addr = 0x01ix25prm.mem_addr = 0xd6040000ix25prm.cable_port = 1


Same as UPA

Board Number

Port on board

Number PAD chars

Initial syncs

50


Gcom_dlpi -L

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

LPA MUX PPA IFACE MODULE CDI_STATE LAP_TYPE--- --- --- ----- ------ --------------- -------- 1 94 1 CDI NULL INPUT_ALLOWED none 2 96 2 CDI NULL INPUT_ALLOWED none

Lower Point of AttachmentEquivalent to line number

Internal STREAMSmultiplexing ID

CDI Physical Point of AttachmentCDI UPA number

Ring System protocol moduleinside CDI User (NULL)

State of CDI User interface

LAP = Link Access ProcedureNone in CDI UserNote that these are LPAs

relative to DLPI Provider.

51


Gcom_dlpi -l

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

cd_state = INPUT_ALLOWED (6)cd_minor = 1cd_state_history[] = 2 3 6 = DISABLED ENABLE_PENDING INPUT_ALLOWEDcd_modem_bits = DTR+ RTS+ DSR- DCD- CTS-cd_events = 0x0cd_canput_next_stream = 1cd_wq_queued = 0cd_rd_queued = 0cd_wr_lo_mark = 15000cd_wr_hi_mark = 20000cd_rd_lo_mark = 2000cd_rd_hi_mark = 5000

Not meaningful due toRing System tunneling

From CDI User standpoint

52


Gcom_dlpi -l

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

cd_auth = id 0x53353730 / prt 31 / usr 31 feat: 07C SNA FrmRly Link X.25 BSC env: 11D LnxI86 SPARC SolI86 QNX HPU brd: 003 SYNC570-2 SYNC570-4cd_bfr_queue_count = 0cd_waiting_ack_count = 0cd_deferred_data_count = 0cd_next_wq_queued = 0cd_next_rd_queued = 0cd_next_next_wq_queued = 0cd_next_next_rd_queued = 0

License key

Not meaningful due toRing System tunneling

53


Gcom_dlpi -U

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

UPA MODULE DLPI_STATE LPA MUX BIND LAP_TYPE PRIM SEC XMIT RCV--- ------ ---------- --- --- ---- -------- ---- --- ---------- ---------- 1 frame infoxfer 1 94 01 lapb 01 03 1549 1544 2 frame infoxfer 2 96 01 lapb 01 03 1544 1548

Indicates X.25 Frame Level

sabmuawt = Sent SABM awaiting UAdiscuawt = Send DISC awaiting UAinfoxfer = Information transferuseruawt = Received SABM awaiting packet level UAuserdiscwt = Received DISC awaiting packet level UAdiscphase = Disconnected phaseverify_up = SABM/UA, verifying Information Transferfrmidle = Idle state, ready for SABM

These should match upwith Gcom_dlpi -L

Counts only I-Frames

54


Gcom_dlpi -u

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

frmpar.maxfsize = 300frmpar.frmwsize = 7frmpar.fdte = 0frmpar.T1_timer = 3frmpar.T2_timer = 10200frmpar.n2 = 20frmpar.fwrapflg = 0x00frmpar.nettype = 0frmpar.frm_optns = 0x00frmpar.fhistsz = 166frmpar.frm_chip_type = 0frmpar.dp_timer = 0frmpar.disc_type = 1frmpar.frm_enb = 1frmpar.T3_timer = 0frmpar.min_wsize = 2frmpar.frm_optns2 = 0x42frmpar.frm_mdmsigs = DTR- RTS- DSR- DCD- CTS- (0x00)frmpar.lap_type = lapb (8)frmpar.prim_addr = 01frmpar.sec_addr = 03

Ensure large enough

10200 = 200ms

Ensure not loopback

Signals required for operationUsually set to 0x00

Ensure LAPB

Correct for DTEOpposite for DCE

55


Gcom_dlpi -u

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

frmpar.lfc_low = 7frmpar.lfc_high = 12frmpar.frm_optns3 = 0x0720frmpar.link_mode = 1frmpar.pl_priority = 0frmpar.frm_optns4 = 0x0000frmpar.rcv_frmsize = 0frmpar.xmt_frmsize = 0frmpar.rcv_wsize = 7frmpar.xmt_wsize = 7

fvs (send sequence) = 6fvr (rcv sequence) = 1frbfrs (outbound q'd) = 0fstate = infoxfer (3)sent_rnr to client = 0

0x20 = Role negotiation

Next N(S) value

Last N(R) value

Should be zero

Should be zero

56


Gcom_dlpi -u

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

Frame Counts: Transmitted ReceivedI-Frames 1566 1561RR Cmnd 37 36RR Rsp 37 38RNR Cmnd 0 0RNR Rsp 0 0REJ Cmnd 0 0REJ Rsp 0 0SREJ Cmnd/Rsp 0 0SABM 2 0SABME 0 0UA 0 1DISC 0 0DM 0 0FRMR 0 0XID/TEST/UI 0 0T1 Timeouts 0T2 Timeouts 1T3 Timeouts 0N2 Timeouts 0Bad Address 0Unsolicited F-Bit 0Invalid Ctl 0

Should be zero

Should be zero

Non-zero is OK

57


Gcom_npi -L

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

LPA MUX INTERFACE MODULE STATE STYLE ATT BIND IND CONN PUID--- --- ----------- ------- ---------- ----- --- ---- --- ---- ---- 1 95 DLPI_IFACE packet IDLE 501 1 01 0 03 0001 2 97 DLPI_IFACE packet IDLE 501 2 01 0 03 0002

Lower Point of AttachmentEquivalent to line number Unique ID for each X.25

packet level module

Interface to DLPINot useful

Note that these are LPAsrelative to NPI Provider.

58


Gcom_npi -l

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

pktpar.dfltpsize = 256pktpar.maxpsize = 256pktpar.lopvc = 100pktpar.hipvc = 100pktpar.losvc = 1pktpar.hisvc = 16pktpar.pkt_pu_id = 1pktpar.dfltwsize = 2pktpar.clrdiag = 1pktpar.resdiag = 1pktpar.rstrtdiag = 1pktpar.pkt_optns = 0x2pktpar.pnettype = 0

Large enough for 240 byteAX.25 packets

Logical channel ranges

Default window size

59


Gcom_npi -l

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

pktpar.pdte = 0pktpar.pkstart = 12pktpar.pwrapflg = 0pktpar.T20 = 18pktpar.R20 = 1pktpar.T21 = 20pktpar.T22 = 18pktpar.R22 = 1pktpar.T23 = 18pktpar.R23 = 1pktpar.phistsz = 160

0 = DCE1 = DTEResult of role negotiation

Ensure not loopback

Timers and retriesin 10 sec ticks

60


Gcom_npi -l

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

offered = ff 1 2c 56 0 0 2f 2f 0 0 1 6 0 0 0 0 0 0selected = 3e 0 c 70 0 0 7f 3f 0 0 1 2 0 0 8 0 0 0performed = 30 0 0 1 0 0 0 0 0 0 f2 21 c 0 0 0 50 2

0x20 = charging info

[0]

Ensure all theseare zero

[4] [8] [12] [16]

0x80 = currency

0x02 = segments0x04 = duration

For Switched Virtual Circuit setup

Charging Facilities

61


Gcom_npi -l

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

offered = ff 1 2c 56 0 0 2f 2f 0 0 1 6 0 0 0 0 0 0selected = 3e 0 c 70 0 0 7f 3f 0 0 1 2 0 0 8 0 0 0performed = 10 0 0 1 0 0 0 0 0 0 f2 21 4c 0 0 0 50 2

[0] [4] [8] [12] [16]

0x40 = Suppress flwctl facils in all call packets. Overridessettings in [16] and [0]

0x40 = Call Acceptflw ctl facils dependson Call Request0x80 = Suppress flwctl facils in CallRequest only


0x10 = Negotiate flwctl facils values

Flow Control Facilities

62


Gcom_npi -l

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

offered = ff 1 2c 56 0 0 2f 2f 0 0 1 6 0 0 0 0 0 0selected = 3e 0 c 70 0 0 7f 3f 0 0 1 2 0 0 8 0 0 0performed = 10 0 0 1 0 0 0 0 0 0 f2 21 4c 0 0 0 50 2

[0] [4] [8] [12] [16]


0x20 = Negotiate throughput class facil values

Throughput Class Facilities

63


Gcom_npi -l

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

pktpar.T28 = 30pktpar.R28 = 1pktpar.intr_data = 32pktpar.tp_class = 0xaapktpar.std_version = 1984

Throughput class values.0xOI where O is outboundand I is inbound. 3 = 75 b/s4 = 150 b/s5 = 300 b/s6 = 600 b/s7 = 1,200 b/s8 = 2,400 b/s9 = 4,800 b/sA = 9,600 b/sB = 19,200 b/sC = 48,000 b/sD = 64,000 b/s

Which version of theX.25 standard to use.Values are 1980, 1984,1988 or 0.

Forces options in selectedstructure. 0 means usersets all desired options.

64


Gcom_npi -l

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

Packet Counters: Input OutputInvalid 0Call Req 0 2Call Acpt 2 0Clear Req 0 1Clear Conf 1 0Data Pkts 308 309Data Bytes 72520 72760Intr Req 0 0Intr Conf 0 0RR Pkt 200 199RNR Pkt 0 0Reset Req 0 0Reset Conf 0 0Restart Req 1 1Restart Conf 0 0Diagnostic 0 0Buffers Q'd 0 0Active Calls (both in and out) 1

Packet counts by type

65


Gcom_npi -U

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

MNR UPA LPA NPI_State Type Chan Data-out Data-in Address PID--- --- --- --------- ---- ---- -------- ------- --------------- ----- 1 - - IDLE * 0 0 0 * 30859 2 1 1 DATA_XFER X.25 1 291 290 321 30859 3 2 2 DATA_XFER X.25 1 291 291 321 30859

Minor device number/npip(241,1) in lsof

Upper Point of Attachment

LPA = Line numberX.25 LCN

Process ID of owner

66


Gcom_npi -u

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

stream.np_max_sdu = 4096stream.np_min_sdu = 0stream.np_wr_lo_mark = 15000stream.np_wr_hi_mark = 20000stream.np_rd_lo_mark = 15000stream.np_rd_hi_mark = 20000

Set by npip.0 sectionin config file

67


Gcom_npi -u

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

ps_lwr_module_type = packetps_dev = 2ps_pa_nr = 1ps_stateHistoryIndex = 3ps_state = DATA_XFER (9)ps_stateHistory[] = 3 6 9 -1 -1 -1 -1 -1ps_event_mask = 0x0ps_on_off = 1ps_downstream_rr = 1ps_down_stream_queued = 0ps_down_rsys_qd = 0ps_down_rsys_ex_qd = 0ps_upstream_rr = 1ps_up_rsys_queued = 0ps_up_stream_queued = 0ps_up_stream_next_qd = 0ps_canput_next_stream = 1

Minor device number

UPA number

Internal flow control“rr” should be 1“queued” should be 0

68


Gcom_npi -u

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

ps_lpa = 1ps_pu_id = 1ps_lvl3_ch = 0x1ps_lvl3_rsys = pktlvl.1 (9)ps_res_addr = "321"ps_lcl_addr = ""ps_user_id = 0ps_process_id = 30859

LPA number

PU ID number

X.25 LCN

PID of owning process

Ring System process

69


Gcom_npi -u

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

counters.np_data_in = 304counters.np_data_out = 305counters.np_exdata_in = 0counters.np_exdata_out = 0counters.np_rcdata_in = 0counters.np_rcdata_out = 0counters.np_datack_in = 0counters.np_datack_rout = 0counters.np_datack_out = 0counters.np_bytes_in = 72960counters.np_bytes_out = 73200counters.np_dataq_in = 0counters.np_dataq_out = 0counters.np_resets_in = 0counters.np_resets_out = 0counters.np_err_ack_cnt = 0

Counters maintainedby NPI driver perconnection

70


Gcom_npi -V

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

LPA PU-Nr PU-State Link-State Board Port Modem-Signals 1 1 Up Up 1 1 DTR+ RTS+ DSR+ DCD- CTS- 2 2 Up Up 1 2 DTR+ RTS+ DSR+ DCD- CTS-

X.25 packet levelup/down

X.25 frame levelup/down

71



Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

MNR UPA LPA Lstns State Data-in Dta-out Local-Addr Remote-Addr--- --- --- ----- ----- ------- ------- ---------- ----------- 1 0 - 128 IDLE3 0 0 * * 2 1 1 0 DATA9 260 261 321 3 2 2 0 DATA9 261 261 321

States defined in/usr/include/gcom/npi.h

Non-zero meanslistening connection

Information similar toGcom_npi -U

72



Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

LPA/PUID Calls Up/Down #routes Route-Id Cost Priority LCN Address-------- ----- ------- ------- -------- ---- -------- ---- ------- - 0 1 0 - 1/1 1 1 2 00000065 0 0 0 * 000000C9 5 0 100 100 2/2 1 1 2 00000066 0 0 0 *2 000000CA 5 0 100 200

Address pattern forougoing X.25 calls

Active X.25 calls NPI Routing Table

Packet level up/down

LCN 0 means SVC

73


Gcom_ss -Uw

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

Index:Name SS-State Type FilDes Operation PortId Rcv-Count Xmt-Count Partner 0:SyncSkt Idle GPI -1 Data 0 0 0 - 1:Probe-Conn Idle Probe 17 None 0 0 0 - 2:x25_out Idle X.25 -1 None 0 0 0 - 3:x25_in ConCnfPnd X.25 19 ConReq 0 1 0 - 45:Probe-Conn DataXfr Probe 23 Data 0 2 7 - 47:x25_in DataXfr X.25 22 Data 2 200 199 49:SyncSkt 48:SyncSkt DataXfr GPI 20 Data 0 199 198 50:x25_out 49:SyncSkt DataXfr GPI 18 Data 0 199 199 47:x25_in 50:x25_out DataXfr X.25 21 Data 1 199 200 48:SyncSkt

Internal SSD connectionindex number

Cloned connection

Defined in SS API manual

Most recent SS operation

Note partner connection

GPI = SyncSocket TCP connection

74


Gcom_ss -u

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

Connection name

X.25 Connection

name = 47:x25_iniface.pname = X.25iface.type = 4conf.conname = connection.3:conf.type = X.25conf.name = x25_inpidx = 47idx = 47fd = 22

partner = 49:SyncSktclone_parent = 3:x25_in

listen_address = 321remote_address = *line_number = 2listen = 1

facilities = 420808430202

npi.npi_state = DATA_XFER

NPI file descriptor

SyncSocket partner

Cloned from this connection

X.25 addresses

Line number

Listening type connection

Negotiated facilities

NPI state (npi.h)

75


Gcom_ss -u

Digi Sync/570

CDI Provider

Digi Driver

DLPI Provider

CDI User

NPI Provider

DLPI User

User

Kernel

Gcom_ssd

pktlvl.1

frmlvl.1

intsx25.1 intsx25.2

SyncSocket Connection

name = 49:SyncSktiface.pname = GPIiface.type = 1conf.conname = connection.0:conf.type = GPIconf.name = SyncSktpidx = 49idx = 49fd = 18

partner = 47:x25_inclone_parent = 0:SyncSkt

ss_state = 3 DATA TRANSFERSyncSocket state

Connection name

TCP file descriptor

X.25 partner

Cloned from this connection

04/21/23

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