Lucent Technologies Whats New In DEFINITY Enterprise Communications Server Release 8.2 Manual

							What’s New in DEFINITY ECS
Release 8.2 Job Aid  555-233-754  Issue 1
April 2000
Networking Enhancements 
265 Networking - ATM 
2
nIntend is that these capabilities will provide administrators with an 
enhanced ability to isolate, diagnose, and correct problems quickly.
Bandwidth Constricted Network 
Example
nCurrently, when a call is to be extended between PNs distributed over an 
ATM network, a CCMS message to provide ringing at the destination is 
sent after the actual SVC setup, but before the SVC connect or release. 
— Until the call is completed, the calling party hears ring back.
nIt is possible that the CCMS message goes through and the SVC cannot 
be established or is delayed. 
nThe incidence of SVC setup latency has been observed to increase 
exponentially when very high rates of calls are simulated 
— Equivalent of what would be 280,000 BHC over an EI pair if the rate 
persisted for an hour.
nWhen ATM PNC SVC setups are delayed or failed, the called party may 
hear ringing, take the receiver offhook, and hear nothing. 
nThe called party may eventually receive a delayed call, but will never 
receive a failed call. 
nIf the call was delayed, the calling party hears silence if one of the SVCs is 
not up or hears the called party if it is up. 
nIf the call is never completed, the caller will eventually hang up without 
knowing why the call was not completed. 
nOccurrence is annoying to users on both ends.
nIn a call center environment this type of problem results in dissatisfied 
callers, abandoned calls, wasted time for call center agents, and lost 
opportunities for business revenue, thereby defeating the purpose of the 
call center.
Response To System Setup Alarm
nThe system setup alarm is raised to alert technicians to the possibility of 
impaired paths, which are undetected. 
nTo diagnose the problem, the technicians can find ample information in the 
error log, the setup-events log, the latency-histogram, and the pnc-latency 
screens.
nThe error log will also enable one to translate an IMP alarm into an 
impaired path.
nTechnicians may decide that the switch is operating normally. 
nTechnician should consider lowering the Activation threshold. 
						

							What’s New in DEFINITY ECS
Release 8.2 Job Aid  555-233-754  Issue 1
April 2000
Networking Enhancements 
266 Networking - ATM 
2
nIf all appears normal in the error log, but the latencies are too high, may 
need to upgrade the ATM network to solve the problem. 
NOTE:
fter the problem is fixed, the alarm will clear, but it will take an indeterminate 
amount of time.
nThe ALARM REPORTING OPTIONS form is displayed via the set options 
command.
nThe Off-board ATM Network Alarms field appears regardless of the option 
for ATM PNC, but will not appear if the system is a csi or si.Alarm Reporting Options Form
set options                                                           Page 1 of 2
ALARM REPORTING OPTIONS
                                                             Major Minor
                                      On-board Station Alarms: w    w
                                     Off-board Station Alarms: w    w
                        On-board Trunk Alarms (Alarm Group 1): y    y
                       Off-board Trunk Alarms (Alarm Group 1): w    w
                        On-board Trunk Alarms (Alarm Group 2): w    w
                       Off-board Trunk Alarms (Alarm Group 2): w    w
                        On-board Trunk Alarms (Alarm Group 3): w    w
                       Off-board Trunk Alarms (Alarm Group 3): w    w
                        On-board Trunk Alarms (Alarm Group 4): w    w
                       Off-board Trunk Alarms (Alarm Group 4): w    w
                                 On-board Adjunct Link Alarms: w    w
                                Off-board Adjunct Link Alarms: w    w
                                   Off-board MASI Link Alarms: w
                                         Off-board DS1 Alarms: w    w
                                     Off-board PI-LINK Alarms: w    w     
                                     Off-board Alarms (Other): w    w
                                 Off-board ATM Network Alarms: w 
						

							What’s New in DEFINITY ECS
Release 8.2 Job Aid  555-233-754  Issue 1
April 2000
Networking Enhancements 
267 Networking - ATM 
2
nThe Port is deciphered as: ATxy. 
— xy is the connection number, not the port network number. 
nThe mapping between connection number and port network number can 
be found with the command list atm pnc. 
nThe Aux Data field contains the originating/ destination port network 
numbers. 
— The rightmost two digits are the destination port network number. 
— The remaining leftmost digits are the origination port network 
number. 
nThe orig/dest designates the direction of the SVC setup.Hardware Error Report
display errors
HARDWARE ERROR REPORT
Port Mtce Alt Err Aux First Last Err Err Rt/ Al Ac
     Name      Name Type Data Occur       Occur        Cnt Rt Hr St
AT03A ATM-NTWK       268 412  11/17/15:01 11/17/15:01   1  0  1  n n
AT03B ATM-NTWK       268 412  11/17/15:02 11/17/15:02   1  0  1  n n
AT03A ATM-NTWK       269 413  11/17/15:03 11/17/15:03   1  0  1  n n
AT01A ATM-NTWK       260 104  11/17/15:05 11/17/15:05   1  0  1  n n
AT01B ATM-NTWK       260 104  11/17/15:06 11/17/15:06   1  0  1  n n
AT13A ATM-NTWK       264 1507 11/17/15:07 11/17/15:07   1  0  1  n n
AT22A ATM-NTWK       259 603  11/17/15:08 11/17/15:08   1  0  1  n n
AT22A ATM-NTWK       276 610  11/17/15:09 11/17/15:09   1  0  1  n n
AT00 ATM-NTWK        301      11/16/09:01 11/16/09:01   1  0  1  n n
Command successfully completed
Command: 
						

							What’s New in DEFINITY ECS
Release 8.2 Job Aid  555-233-754  Issue 1
April 2000
Networking Enhancements 
268 Networking - ATM 
2
Example
nThe Err Type field is the value 256+destination connection #. 
nThis allows multiple entries of the same port name/ Mtce name pair in the 
error log. 
nIf the error type value was the same for a given port name/Mtce name pair, 
only get 1 entry for that port name/Mtce name pair in the error log. 
nUp to 6 entries of the same port name/Mtce name pair can be stored in the 
error log. 
nWhen a new entry with the same port name/Mtce name pair is logged, the 
oldest one is overwritten.
  AT13A        ATM-NTWK        264      1507     11/17/15:01 11/17/15:01      23     0   1 n n
   
AT13A:                                 ATM connection number 13, PNC-A.
       264:                                Error type: 256 + destination connection number 8
     1507:                                
Originating port network number is 15. Destination port network  number is 7. This all
means that the threshold for SVC setup events from connection # 13 to connection # 8 has
been exceeded.
Alarm Report
display alarms
ALARM REPORT
Port           Maintenance On   Alt   Alarm   Svc   Ack?  Date      Date
               Name        Brd? Name  Type    State 1 2   Alarmed   Resolved
AT03A          ATM-NTWK     n   WARN                    11/17/15:01 00/00/00:00
AT03B          ATM-NTWK     n   WARN                    11/17/15:02 00/00/00:00
AT01A          ATM-NTWK     n   WARN                    11/17/15:03 00/00/00:00
AT01B          ATM-NTWK     n   WARN                    11/17/15:04 00/00/00:00
AT13A          ATM-NTWK     n   WARN                    11/17/15:05 00/00/00:00
AT22A          ATM-NTWK     n   WARN                    11/17/15:06 00/00/00:00
AT00           ATM-NTWK     n   WARN                    11/17/15:06 00/00/00:00
Command successfully completed
Command: 
						

							What’s New in DEFINITY ECS
Release 8.2 Job Aid  555-233-754  Issue 1
April 2000
Networking Enhancements 
269 Networking - ATM 
2
nThe Port is deciphered as: ATxyZ. xy is the connection number, not the port 
network number. 
nThe mapping between connection number and port network number can 
be found with the command list atm pnc. 
nThe alarm indicates that at least one path originating from the displayed 
Por t, has exceeded the SVC setup threshold. 
nThe alarm is resolved when SVC setups from all paths that originate from 
the given Port, have gone below a deactivation threshold for SVC setups.
Test Results for ATM SVC Setups
test atm svc-setups from-conn 3 to-conn 5 repeat 100
TEST RESULTS
 Port   Maint Name   Orig PN     Dest PN      Result      Error Code
 AT03A  ATM-NTWK       3             5        PASS
Command successfully completed
Command:
Changes to Port Network Connectivity Form for Status PNC Command with ATM PNC 
Enabled
status pnc
PORT NETWORK CONNECTIVITY
 Duplicated? yes
                                          Software Locked? no
                                           Standby Busied? no
            
                                        Standby Refreshed? no
                                     Interchange Disabled? yes
                  A-PNC                                B-PNC
                  Mode: standby                        Mode: active
       State of Health: functional          State of Health: functional
        Inter PN Index: 00.00.00.00          Inter PN Index: 00.00.00.00
          Major Alarms: 0                      Major Alarms: 0
          Minor Alarms: 0                      Minor Alarms: 0
        Warning Alarms: 0                    Warning Alarms: 0 
						

							What’s New in DEFINITY ECS
Release 8.2 Job Aid  555-233-754  Issue 1
April 2000
Networking Enhancements 
270 Networking - ATM 
2
T1 401A/E1 402A/E1 403A Synchronization 
Splitters
A DEFINITY ATM-PNC requires network synchronization for DS1 circuit packs not 
to slip relative to the LEC/IXC switches. The ATM switch serves as the sync 
reference source for the DEFINITY. The ATM switch, in turn, derives primary and 
secondary sync. To accomplish this, the most common option is to use 
synchronization expanders (splitters).
Connections needing synchronization splitters
If the ATM network does not provide a synchronization expander (splitter), then 
the ATM configurations may require one that takes a DS1 T1 or E1 signal and 
redirects it to the
nATM switch(es), depending on configuration and duplication
nDEFINITY ECS through the DS1 circuit pack
Splitter descriptions 
Table 14 describes the 4 splitter models and their capabilities. The drawings show 
the splitters and their connection points. Figure 21
 shows a schematic of the 2 
jumper sets and their connections for 401A, 402A, and 403A sync splitters.
Table 14. Synchronization splitter models and attributes  
Model T1/E1 Impedance Comcode Drawing Description/Application
400A T1 100 W108217795Figure 17
No ICSU capability
401A T1 100 W 108508078Figure 18
Limited ICSU capability
402A E1 120 W108508094Figure 19
403A E1 75 W108508102Figure 20
Continued on next page 
						

							What’s New in DEFINITY ECS
Release 8.2 Job Aid  555-233-754  Issue 1
April 2000
Networking Enhancements 
271 Networking - ATM 
2
Figure 17. 400A synchronization splitter Figure Notes:
1. From network interface
2. Amphenol connection to DEFINITY 
ECS 3. Timing output port (J1) to the ATM switcha
4. Timing output port (J2) to the ATM switcha
a. Ports J1 and  J2 p rovid e id entical DS1 timing  source sig nals to the ATM switc hes. 
The ATM switc h can use two sep arate DS1 timing  signals (one at a time from two 
sep arate spans).
J1
J2
crda400a LJK 071698
1
2
34 
						

							What’s New in DEFINITY ECS
Release 8.2 Job Aid  555-233-754  Issue 1
April 2000
Networking Enhancements 
272 Networking - ATM 
2
Figure 18. 401A synchronization splitter Figure Notes:
1. Amphenol connector to DEFINITY 
ECS
2. Network timing connection3. Timing alarm lead connection
4. Timing output ports (RJ45) to ATM switch
a
5. Jumpers and capacitors (inside case). See Figure 21 for settings.
a. Ports J1 and  J2 p rovid e id entical DS1 timing  source sig nals to the ATM switc hes. 
The ATM switc h can use two sep arate DS1 timing  signals (one at a time from two 
sep arate spans).
401A
108508078
1
0
0O
H
MT
1
S
Y
N
CS
P
L
IT
T
E
R
TO ATM SWITCH NETWORKALARM
Lucent
Technologies
crda401a KLC 020300
1
2
3
4
TO DEFINITY
5
5 
						

							What’s New in DEFINITY ECS
Release 8.2 Job Aid  555-233-754  Issue 1
April 2000
Networking Enhancements 
273 Networking - ATM 
2
Figure 19. 402A synchronization splitter Figure Notes:
1. Amphenol connector to DEFINITY 
ECS
2. Network timing connection3. Timing alarm lead connection
4. Timing output ports (RJ45) to ATM switch
a
5. Jumpers and capacitors (inside case). See Figure 21 for settings.
a. Ports J1 and  J2 p rovid e id entical DS1 timing  source sig nals to the ATM switc hes. 
The ATM switc h can use two sep arate DS1 timing  signals (one at a time from two 
sep arate spans).
402A
108508094
1
2
0O
H
ME
1
S
Y
N
CS
P
L
IT
T
E
R
TO ATM SWITCH NETWORKALARM
Lucent
Technologies
crda402a KLC 020300
1
2
3
4
TO DEFINITY
5
5 
						

							What’s New in DEFINITY ECS
Release 8.2 Job Aid  555-233-754  Issue 1
April 2000
Networking Enhancements 
274 Networking - ATM 
2
Figure 20. 403A synchronization splitter Figure Notes:
1. Amphenol connector to DEFINITY ECS
2. Synchronization source (timing output 
ports) to ATM switch
1
3. Synchronization source (timing output 
ports) to ATM switcha
a. These are id entic al DS1 timing source signals to the ATM switches. The ATM switc h 
can use two separate DS1 timing  sig nals (one at a time from two sep arate sp ans).
4. Network receive connection, BNC connector
5. Network transmit connection, BNC connector
6. Jumpers and capacitors (inside case). See 
Figure 21
 for settings.
403A
108508102
75OHM E1
SYNC SPLITTER
TO ATM
SWITCH RXTX
Lucent Technologies
NETWORK
TO DEFINITY
2
3
4
5
6
6
crda403a KLC 020300
1