Telecommunications - Configuration of X.25 One-way Logical Channel

 

Subscription Option - One-way Logical Channel Outgoing

Subscription Option - One-way Logical Channel Incoming

This facility, if subscribed to, allocates logical channel numbers (LCNs) for outgoing calls only.

UK uses logical group channel numbers 6 and 7 for outgoing only logical channels.

This facility is supported on both UK(a) and UK(b).

X.2 LEVEL 3 PER USER SUBSCRIPTION X.2 (1984) UK(a) UK(b) interworking
OPTIONS REF CLASS now now R5a R5b R6
One-way logical channel outgoing.... 1.10 E

| One-way logical channel outgoing....| 1.10 E |

|

|


10.8 - Subscription Option - One-way Logical Channel Incoming

Description of Option

This facility, if subscribed to, allocates logical channel numbers (LCNs) for incoming calls only.

UK uses logical group channel numbers 2 and 3 for incoming only logical channels.

This facility is supported on both UK(a) and UK(b).

X.2 LEVEL 3 PER USER SUBSCRIPTION X.2 (1984) UK(a) UK(b) interworking
OPTIONS REF CLASS now now R5a R5b R6
One-way logical channel incoming.... 1.11 E

| One-way logical channel incoming....| 1.11 E |

|

|

This is already implemented by UKa - there are no changes for release 4

table build questions:

TXDTES Q 002:Do you wish to define any two way SVCs?

|TXDTES Q002|Do you wish to define any two way SVCs? ......#(Yes/No)

TXDTES Q 003:Enter starting logical channel group number:

|TXDTES Q003|Enter starting logical channel group number...#standard Public Network settings = 4

TXDTES Q 004:Enter maximum number of VCs:

|TXDTES Q004|Enter maximum number of VCs...................#TXDTES Q 008:Do you wish to define any outgoing SVCs?

|TXDTES Q008|Do you wish to define any outgoing SVCs ......#(Yes/No)

TXDTES Q 009:Enter starting logical channel group number:

|TXDTES Q009|Enter starting logical channel group number...#standard Public Network settings = 6

TXDTES Q 010:Enter maximum number of VCs:

|TXDTES Q010|Enter maximum number of VCs...................#&UKb& = yUKb support

v 4.03

CCITT compatibility

X.2 1984 ... essential

X.2 1988 ... essential

ISO 8878 compatibility

ONA compatibility

RD 0004 part 8:1.C (PICS proforma Public Network1984)

LC5 - LOC ................ 1536>2048

LC6 - HOC ................

Therefore release 4 is compatible with ONA for this option.

Test plan and implementation issues

no change


table build questions:

TXDTES Q 005:Do you wish to define any incoming SVCs?

|TXDTES Q005|Do you wish to define any incoming SVCs?......#(Yes/No)

TXDTES Q 006:Enter starting logical group number

|TXDTES Q006|Enter starting logical group number...........#standard Public Network settings = 2

TXDTES Q 007:Enter maximum number of VCs

|TXDTES Q007|Enter maximum number of VCs...................#If over 64 incoming calls are specified then, LCNs will be allocated by Public Network from 64 down, otherwise calls will be allocated from 127 down.

*** check this ***

&UKb& = yUKb support

v 4.03

SVC: yes supported

PVC: n/a

X.32: no

Turbo Engine:

Mini Engine:

Micro Engine:

Pico Engine:

&telematics& = yTelematics support

Require more information

&internal& = y

CCITT compatibility

X.2 1984 ... A - additional service

X.2 1988 ... A - additional service

ISO 8878 compatibility

ONA compatibility

RD 0004 part 8:1.C (PICS proforma Public Network1984)

LC1 - LIC ................ 512>1024

LC2 - HIC ................

Therefore release 4 is compatible with ONA for this option.

Test plan and implementation issues

no new issues

*** during testing check, If over 64 incoming calls are specified then, LCNs will be allocated by Public Network from 64 down, otherwise calls will be allocated from 127 down.


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