Lucent Technologies DEFINITY Enterprise Communications Server Release 5, CallVisor, ASAI Protocol Reference Instructions Manual

Maintenance
Issue 6  June 1997
5-187
Acknowledge Restart of an ASAI Interface
1. This locking shift must be present when the Version IE is present; otherwise, it is omitted.
Byte Description Byte Value Comments
Protocol Discriminator 0x08 BRI
CRV Length 0x01 or 0x02 global CRV
CRV Value 0x80 flag bit set with zero value
Second CRV Value Byte0x00
Message Type 0x4e RESTart ACKnowledge
Restart Indicator IE 0x79
length of Restart Ind. 0x01
all interfaces 0x87
Locking Shift to Code Set 610x96
Version IE 0x1b...

Byte Level Messages
5-188Issue 6  June 1997 
Heartbeat
Byte Description Byte Value Comments
Protocol Discriminator 0x08 BRI
CRV Length 0x01 or 0x02
First CRV Byte 0x? assigned value
Second CRV Byte0x? assigned value
Message Type 0x64 REGister
Locking Shift to Code Set 6 0x96
Facility IE 0x1c
Length of Facility 0x?? computed length
Q.932 Supplementary Service 0x91
component type tag = invoke 0xa1 INVOKE component
component length 0x?? computed length
component length0x?? long form (length > 127)
invoke...

Maintenance
Issue 6  June 1997
5-189
Response to Heartbeat
Byte Description Byte Value Comments
Protocol Discriminator 0x08 BRI
CRV Length 0x01 or 0x02
First CRV Byte 0x?
Second CRV Byte0x?
Message Type 0x5a RELease COMplete
Locking Shift to Code Set 6 0x96
Facility IE 0x1c
Length of Facility IE 0x?? computed length
Q.932 Supplementary Service 0x91
component type tag 0xa2 RETURN RESULT 
component
component length 0x?? computed length
component length0x?? long form (length > 127)
invoke identifier tag...

Byte Level Messages
5-190Issue 6  June 1997 
Maintenance Messages Sent by the Adjunct
Suspend/Resume Alarming for ASAI Interface
Byte Description Byte Value Comments
Protocol Discriminator 0x08 BRI
CRV Length 0x01 or 0x02 global CRV
CRV Value 0x00 zero value
Second CRV Value Byte0x00
Message Type 0x00 MIM — first byte
Message Type 0xf7 MIM — second byte
Locking Shift to Code Set 6 0x96
MIE 0x7a
MIE length 0x07
MIE Prot Disc 0x03
MIE Trans Ref 0x80 synchronous MIM operation
MIE Op class & Type 0x90 class...

Maintenance
Issue 6  June 1997
5-191
Maintenance Messages Sent by switch
Acknowledge Suspend/Resume Alarming for
ASAI Interface
Byte Description Byte Value Comments
Protocol Discriminator 0x08 BRI
CRV Length 0x01 or 0x02 global CRV
CRV Value 0x80 flag bit set with zero value
Second CRV Value Byte0x00
Message Type 0x00 MIM — first byte
Message Type 0xf7 MIM — second byte
Locking Shift to Code Set 6 0x96
MIE 0x7a
MIE length 0x04
MIE Prot Disc 0x03
MIE Trans Ref 0x80 response to synchronous MIM 
operation...

Byte Level Messages
5-192Issue 6  June 1997 
Reject MIM Message
Byte Description Byte Value Comments
Protocol Discriminator 0x08 BRI
CRV Length 0x01 or 0x02 global CRV
CRV Value 0x80 flag bit set with zero value
Second CRV Value Byte0x00
Message Type 0x00 MIM — first byte
Message Type 0xf7 MIM — second byte
Locking Shift to Code Set 6 0x96
MIE 0x7a
MIE length 0x04
MIE Prot Disc 0x03
MIE Trans Ref 0x?? taken from request
MIE Op class & Type 0xd0 class = reject
MIE Operation 0x81, 8x82 Management Error Code 

Issue 6 June 19976-1
6
Maintenance
The ECS Support for BRI Endpoints
The ECS requires all ASAI interfaces be administered as fixed or automatic 
Terminal Endpoint Identifier (TEI), point-to-point interfaces. Although the ECS also 
supports multipoint for BRI station sets, an ASAI interface is more restricted.
This restriction means an adjunct:
nMust support either fixed or automatic TEI, but does not have to support 
both
nDoes not need to support layer 3 SPID initialization
nOnly needs to support a...

Maintenance
6-2Issue 6 June 1997 
ASAI Endpoint Administration
To administer an ASAI interface, the system administrator enters the add station 
command. On the station form, the administrator first sets the station type to 
ASAI. The administrator must MANUALLY administer the ASAI interface as a 
fixed or automatic TEI, point-to-point link.
nFixed TEI defaults to NO for ASAI station type. The administrator should 
leave this set to NO for an automatic TEI ASAI endpoint or change it to YES 
for an ASAI...

ASAI Link Alarming
Issue 6 June 1997
6-3
ASAI Link Alarming
The ASAI Adjunct Alarm Administration Feature permits a customer to tune the 
level of alarm reporting for ASAI adjuncts. Using the feature, the customer can 
administer on-board and off-board alarms for ASAI ports and/or endpoints to raise 
warnings or minor or major alarms. Once an item is administered to raise a 
certain level of alarm, it alarms all ASAI links at that level.
The system default is to provide warnings. When an adjunct or...

Maintenance
6-4Issue 6 June 1997 
Management Information Messages
The ECS uses BRI Management Information Messages to suspend and/or 
resume alarms on an ASAI interface.
If the ECS receives any other message with a Management Protocol 
Discriminator on an ASAI interface, the message is ignored.
Temporary Layer 2 Drop
The BRI specification contains a procedure for a temporary loss of Link Access 
Protocol for D Channel (LAPD) connectivity. The procedure states that when 
connectivity is lost at layer 2,...