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
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nThe commands are available if Asynch. Transfer Mode (ATM) PNC? is 
enabled via the form resulting from the command change systems-
parameters customer-options, regardless of the administered software 
version.
nAccess to this command may be blocked for a given login by administering 
the Additional Restriction atm-pnc on the logins permissions form.
nOnly those logins having the authorizations will have access to the 
commands.
nList Command
— Authorization: System Measurements
— Syntax: list measurements atm latency-histogram “current-hour” 
“last-hour” “today-total” or “yesterday -total” [“print”or “schedule”]
— Help: Enter “current-hour” “last-hour” “today-total”or “yesterday-total” 
, [“print”or “schedule”]
— Errors: x is an invalid identifier; please press HELP
NOTE:
Execution of the set time command will not affect the output of the list 
measurements atm latency-histogram
 commands.
For m Fields
nSetup Count: the number of SVCs setup during the time period indicated. 
Values: 0 - 9999999ATM PNC LATENCY HISTOGRAM Form
list measurements atm latency-histogram last-hour
                                                               Page 1 SPE A
Switch Name:                                 Date: 10:27 am TUE OCT 25, 1999
ATM PNC LATENCY HISTOGRAM
    Setup Count: 770    Average Latency (msec): 53      Failure Count: 3
 AddParty Count: 538    Average Latency (msec): 92      Failure Count: 1
    Total Count: 1308   Average Latency (msec): 71      Failure Count: 4
 
     Range (msec)  Setup AddParty Total Range (sec)  Setup AddParty Total
      0-9            0       0      0     1-1.9        1       0      1
    10-19          200       2    202     2-2.9        0       0      0
    20-49          400       3    403     3-3.9        0       0      0
    50-99          100       1    101     4-4.9        6       1      7
  100-149           50       6     56     5-5.9        0       0      0
  150-199           10       0     10     6-6.9        0       0      0
  200-249            3       0      3     7-7.9        0       0      0
  250-299            0       0      0     8-8.9        0       0      0
  300-399            0       0      0     9-9.9        0       0      0
  400-499            0       0      0     10 +         0       0      0
  500-999            0       0      0 
						

							What’s New in DEFINITY ECS
Release 8.2 Job Aid  555-233-754  Issue 1
April 2000
Networking Enhancements 
256 Networking - ATM 
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nAddPar ty Count: the number of ADDPARTY requests processed. Values: 0 
- 9999999
nTotal Count: the total number of SETUP and ADDPARTY requests. Values: 
0 - 9999999
nAverage Latency: average latency in milliseconds for SVC type described 
during the time period indicated. Values: 0 - 8000
nFailure Count: the number of SVCs of the type described that could not be 
established by the ATM network during the time period. Does not include 
SVCs that were delayed and the delay exceeds the threshold set for 
Timeout (msec): on the ATM-RELATED SYSTEM PARAMETERS form.)
nValues: 0 - 9999. The number 9999 will be shown if the value is greater 
than 9999.
n(msec) Count: the number of SVCs for which delay in milliseconds fell 
within each range during the time period indicated. Values: 0 - 9999999
n(sec) Count: the number of SVCs for which delay in seconds fell within 
each range during the time period indicated. Values: 0 - 9999999
ATM PNC Delayed/Failed Setups Form
nThis form is accessible with the command list measurements atm setup-
events [“x”] or [“from-conn” x] [“to-conn” x] [“print” or “schedule”].
nAvailable if Asynch. Transfer Mode (ATM) PNC? is enabled via the form 
resulting from the command systems-parameters customer-options.
nThe command syntax allow the administrator to list setup events for a 
particular connection number or for a range of connection numbers.
nlist measurements atm setups-events Command
 Command  Result
“list measurements atm setup-events”  Provides a list of up to 100 of the most recent 
setup events.
“list measurements atm setup-events from-conn 
3” Provides a list of all setup events from 
connection 3 to all other connections.
“list measurements atm setup-events from-conn 
3 to-conn 4”Provides a list of all setup events from 
connection 3 to connection 4.
“list measurements atm setup-events to-conn 4”  Provides a list of all setup events from all 
connections to connection 4.
“list measurements atm setup-events 4”  Provides a list of all setup events from or to 
connection 4. 
						

							What’s New in DEFINITY ECS
Release 8.2 Job Aid  555-233-754  Issue 1
April 2000
Networking Enhancements 
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ATM PNC DELAYED/FAILED SETUPS Form
nAccess to the new command may be blocked for a given login by 
administering the Additional Restriction atm-pnc on the logins 
permissions form.
nOnly those logins having the authorizations will have access to the 
commands.
— Authorization: System Measurements
— Syntax: list measurements atm setup-events [“x”] or [“from-conn” x] 
[“to-conn” x] [“print” or “schedule”]
— Help: Enter [x] or [“from-conn” x] [“to-conn” x], [“print” or “schedule”] 
(Where x is an administered connection number between 1-44.)
— Errors: is an invalid identifier; please press HELP
nConnection number out of range; please press HELP
nConnection not assigned; please select another
— The “from” connection number cannot equal the “to” connection 
number.
NOTE:
Execution of the set time command will not affect the output of 
the 
list measurements atm setup-events command.
ATM PNC DELAYED/FAILED SETUPS Form, Page 1
list measurements atm setup-events
Page 1
   Switch Name:        Date: 2:33 pm TUE DEC 12, 1999
                         ATM PNC DELAYED/FAILED SETUPS
Date        Time    Event    Delay(msec)      From Conn    To Conn  PNC
12/12/1999 14:32:10 delayed  1765                3          7       A-PNC
12/12/1999 14:31:37 failed                       3          7       A-PNC
12/12/1999 14:31:22 delayed 1809                 7          8       A-PNC
12/12/1999 14:31:18 delayed 1672                12          6       B-PNC
12/12/1999 14:31:15 delayed 1023                 3          7       B-PNC
12/12/1999 14:29:45 delayed 1005                 1          3       B-PNC
12/12/1999 14:29:23 failed                       3          1       A-PNC
12/12/1999 14:28:12 failed                       6          2       A-PNC
12/12/1999 14:27:56 delayed 2088                 6          7       A-PNC
12/12/1999 14:27:24 delayed 1308                 6          8       B-PNC
12/12/1999 14:27:05 delayed 1011                 6          2       A-PNC
12/12/1999 14:26:38 failed                      11          4       B-PNC
12/12/1999 14:26:32 delayed 1246                 3          7       A-PNC
Command: 
						

							What’s New in DEFINITY ECS
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Form Pages
nUp to 100 entries will be listed if no selection criteria are indicated, 
otherwise all available are provided.
Form Fields
nSwitch Name: The value administered on the system-parameters features 
form.
nDate: Time/date that the command is being executed.
nDate: System Date when the event occurred (4-character year field used 
for Y2K compliance)
nTime: System Time when the event occurred
nEvent: The type of event (delayed or failed)
nDelay (msec): The Delay value is only displayed for delayed events. For 
failed events, this field will be blank. 
Values: (5 digits) Values will range from 250 to 20,000
nFrom Conn: The originating connection number
nTo Conn: The destination connection number
nPNC: A-PNC or B-PNC
Changes to Existing Forms and Commands
Modifications to the PERMISSIONS Form
nAdds new Additional Restriction keyword system-atm to the 
PERMISSIONS form. 
nThis controls access to the ATM-RELATED SYSTEM PARAMETERS form.
ATM RELATED SYSTEM PARAMETERS
nThis form is accessed with the commands change system- parameters atm 
and display system-parameters atm. 
nThe entire form is only accessible and visible if the value for Asynch 
Transfer Mode (ATM) PNC? on the SYSTEM PARAMETERS -CUSTOMER 
OPTIONS form is set to y, and the G3 Version is V8 or greater.  
						

							What’s New in DEFINITY ECS
Release 8.2 Job Aid  555-233-754  Issue 1
April 2000
Networking Enhancements 
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nActivation (%): Field
— Values for this field can be any whole number from 1 to 20. The 
default is 4.
nDeactivation (%): Field
— Values for this field can be any whole number from 0 to 1 less than 
the number indicated for Activation (%):. 
— The default is 3.
— If the value for Activation (%): is 5, then the value for Deactivation 
(%): can be 0, 1, 2, 3, or 4.
nTimeout (msec): Field
— Values for this field are from 250 to 20,000, in increments of 1. The 
default is 1000.
nDeny Calls Using Impaired Paths? Field
— Values for this field are y or n. The default is n.
nActivation (%)
— Use: This field specifies the percentage of setup events for a path to 
become impaired. That is, if the percentage of setup events for a 
given path meets or exceeds this administered value, then it 
becomes impaired. An alarm is raised against an ATM-IMP when 
one or more paths originating from that ATM-IMP become impaired.
—Default: 4
— Length: 2 characters
— Help: Enter number between 1 - 20
— Errors: Entry must be all digits
— Field cannot be blankATM-Related System Parameters Form
change system-parameters atm
Page 1
ATM-RELATED SYSTEM PARAMETERS
     THRESHOLDS OF SETUP EVENTS TO DECLARE IMPAIRMENT
                                                   Activation (%): 4
                                                 Deactivation (%): 3
                                                   Timeout (msec): 1000
 TREATMENT DURING IMPAIRED CONDITIONS
                                  Deny Calls Using Impaired Paths? n
Command: 
						

							What’s New in DEFINITY ECS
Release 8.2 Job Aid  555-233-754  Issue 1
April 2000
Networking Enhancements 
260 Networking - ATM 
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nDeactivation (%)
— Use: This field specifies the percentage of setup events for a path to 
come out of the impaired state. That is, if the percentage of setup 
events for an impaired path meets or drops below this administered 
value, then it is no longer impaired. An alarm is retired when there 
are no more impaired paths originating from that ATM-IMP.
—Default: 3
— Length: 2 characters
— Help: Enter number (0-19) which is less than the Activation value.
— Errors: Entry must be all digits
— Field cannot be blank
— Entry must be less than the Activation value
nTimeout (msec):
— Use: This field specifies the maximum number of milliseconds 
allowed for a SVC connection to be completed before being counted 
as delayed.
— Default: 1000
— Length: 5 characters
— Help: Enter number between 250 - 20000
— Errors: Entry must be all digits
— Field cannot be blank
nDeny Calls Using Impaired Paths?
— Use: This field specifies whether to deny calls that use connections 
over impaired paths. If the option is y, then calls, which require a 
new SVC on an impaired path on the active PNC, will not be 
completed. If the option is n, then such calls will be treated as per 
current operation for ATM PNC.
—Default: n
— Length: 1 character
— Help: n (no) y (yes)
— Errors: x is an invalid entry; please press HELP
Authorization/Restrictions
nAsynch. Transfer Mode (ATM) PNC? must be enabled on the OPTIONAL 
FEATURES form to access Conserving ATM Bandwidth capabilities. 
nThe command to access the form is change system-parameters customer-
options. 
						

							What’s New in DEFINITY ECS
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Upgrades
nUpgrades of R6r and R7r ATM PNC equipped systems to R8r will use the 
capabilities of conserving ATM Bandwidth without additional feature 
administration.
nUpgrades of critically duplicated r systems to R8r are call preserving.
Implementation Notes
NOTE:
Not all calls are denied on impaired paths since there are some calls which 
can be satisfied by SVCs in the cache. Therefore, since a denied call may 
place a new SVC in the cache (see below), the next call on this connection 
may succeed when the prior call was denied. The customer could see calls 
succeeding somewhat randomly.
nTo prevent an alarm from staying on forever, DEFINITY Connection 
Management software (CM) performs the following whenever it denies a 
call:
— If a SVC in the coming up state exists in the cache, do nothing.
— Creates an SVC and immediately put it in the cache (if room), or 
mark it for destruction (if no room in the cache). 
nThese SVC setup attempts will contribute to measurements 
of delayed & failed SVCs.
— When this SVC comes up, scan the event log and possibly clear the 
alarm, if the setup delay is now below the threshold.
Alarm Activation
nSVC SETUP impairment parameters are administered on the ATM-
RELATED SYSTEM PARAMETERS form. Notification of an alarm 
condition for a given ATM-IMP will be recorded in the alarm log when one 
or more paths originating at that ATM-IMP becomes impaired.
NOTE:
 An ATM Interface Module Por t (ATM-IMP) is a port on an ATM network 
towhich a DEFINITY ATM Interface circuit pack is attached. The ATM-IMP 
maintenance object (MO) deals with off-board alarms associated with an 
ATM Interface Module Port.
nThe maximum matrix of PN pairs could be as great as 2x(44x43), 
depending on the number of PNs - 44 is the maximum on an r. 
nA delayed SVC is an SVC that did not complete in an amount of time less 
than or equal to the parameter set for “Timeout (msec):” on the ATM-
RELATED SYSTEM PARAMETERS form. 
						

							What’s New in DEFINITY ECS
Release 8.2 Job Aid  555-233-754  Issue 1
April 2000
Networking Enhancements 
262 Networking - ATM 
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Alarm Deactivation
nThe alarm condition for a given ATM-IMP is resolved whenever the number 
of active SETUP events drops to or below the Deactivation value on the 
ATM-RELATED SYSTEM PARAMETERS form for all paths originating at 
that ATM-IMP (i.e., all paths become unimpaired). 
— If the activation threshold is 5%, then the clearing threshold can be 
0%, 1%, 2%, 3%, or 4%.
SVC Latency Measurements
nThe ATM PNC LATENCY HISTOGRAM form will be visible when the 
command list measurements atm latency-histogram (current-hour, last-
hour, today-total, and yesterday-total)] is executed.
n The number of setups per time period selected (current-hour, last-hour, 
today-total, and yesterday-total), the average latency in milliseconds, and 
the failure count per each range is provided by call processing software to 
administration software and is available to the user.
nProvide Detail for Active Setup Events
nThe ATM PNC DELAYED/FAILED SETUPS form is displayed by the 
command list measurements atm setup-events. Event date, event time, 
event type (delayed or failed), delay time in milliseconds, from/to PN 
connection numbers, and PNC connection (A- PNC or B-PNC) detail for all 
active SETUP events are provided. 
The Option to Deny Calls
nThe option to deny calls over impaired paths is administered via the new 
Deny Calls Using Impaired Paths? field on the ATM-RELATED SYSTEM 
PARAMETERS form. 
nIf the option is y, then calls which require a new SVC over an impaired path 
on the active PNC will not be completed. 
nIf the option is n, then such calls will be treated as per current operation for 
AT M  P N C .
Alarm Deactivation while Calls Are Being 
Denied
nWhen denying calls, call processing software continues to periodically 
launch SETUPs into the network on impaired paths (but not in sufficient 
quantity to cause significant further degradation of the path). 
— This is necessary to stimulate the retiring of alarms when network 
conditions improve.  
						

							What’s New in DEFINITY ECS
Release 8.2 Job Aid  555-233-754  Issue 1
April 2000
Networking Enhancements 
263 Networking - ATM 
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nIf they are not denied, current operation for delayed SVCs means that it is 
possible that the called party hears ringing, goes off-hook and initially 
cannot hear the calling party or cannot be heard by the calling party, or 
both cannot hear each other until one-way SVCs in both directions are 
established. 
nThe drop on failure operation is maintained for failed calls. 
nIf one or more inter-PN connection requests are failed by the ATM network, 
the affected call will be dropped if it is a two-party call. 
— Otherwise, the failure will be ignored by the switch and must be 
dropped by the parties to the conference.
nA call is denied if and only if all of the below are true:
— The Deny Calls Using Impaired Paths? option is on
— The call requires a path which is impaired on the active PNC
— A SVC for that path cannot be found in the cache
nNo paths on the standby PNC are considered when denying calls.
Call Processing
Performance Management Approach
nAlarming of out of spec conditions
nDetailed SVC latency measurements
nGiving the administrator the option to either allow or deny completion of 
calls that would require a new SVC over a path which has recently 
experienced a high number of delayed or failed SVCs
Initial Setup v. Adding a Leg
nWhen a connection is first set up between two endpoints over an ATM PNC 
arrangement, it is created with a SETUP request to the network. 
— Later, it is possible to add another endpoint with an ADDPARTY 
request as the result of adding a conferee to a conference call, for 
example. 
nThe ADDPARTY and the SETUP messages are very similar from the call 
processing perspective. 
— A station user being called, however, would not know which method 
was used to connect a call. 
— The effect on the talk path is the same. 
— For example, a slow SETUP or a slow ADDPARTY may both cause 
operational problems. 
						

							What’s New in DEFINITY ECS
Release 8.2 Job Aid  555-233-754  Issue 1
April 2000
Networking Enhancements 
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Interactions between Call Processing Software and Maintenance 
Software
nCall processing software and maintenance software work together to 
provide alarm activation and deactivation. 
nCall processing software will report event information to maintenance 
software that can result in maintenance software activating or deactivating 
alarms.
Configuration/Environment
Hardware
nTN2305/TN2306 ATM Interfaces are to be used for R8r ATM PNC 
capabilities. 
nThe TN2305/TN2306 ATM Interfaces must be used with ATM CES, with 
ATM WAN PNC, and if multiple ATM switches are used. 
Performance Management Approach
nWhen SVC failures or delays occur more often than normally in a 
DEFINITY® ATM PNC environment, this is most often expected to be 
evidence of an ATM Network that is out of spec. 
nHard to predict all of the consequences of a degraded ATM network on the 
DEFINITY® system,
nDEFINITY® system is the platform for call centers, voice messaging, CTI, 
Telecommuting feature, and many other complex applications and 
interactions. 
nIt id  difficult to predict the effects that could be evidenced when a 
DEFINITY® system processor overload occurs. 
nSuch degraded conditions need to be avoided, as opposed to learning how 
to live with undesirable circumstances. 
nStrategy entails:
— Alarming of out-of-spec conditions
— Detailing SVC latency measurements
— Giving the administrator the option to either allow or deny 
completion of calls which would require a new SVC over a path 
which has recently experienced a high number of delayed or failed 
SVCs so that alternative methods of handling these calls is possible, 
particularly in a call center environment
nEnhancements include the ability to set thresholds for alarms related to 
SVC setups, detailed error logs, and new parameters for the determination 
of state of health.