Lucent Technologies DEFINITY® Enterprise Communication Server Release 8.2 Reports Guide

							DEFINITY Enterprise Communication Server Release 8.2
Reports Guide  555-233-505  Issue 1
April 2000
Traffic Data Analysis 
3-119 Port Network Reports 
3
Port Network Reports
This sec tion d isc usses the p ort network rep orts.
Blockage Study Report
The Bloc kag e Stud y Rep orts p rovid e information on usag e and  b loc kag e for 
eac h p ort network as well as b etween switc h nod e p airs.
There are two rep orts: One p rovid es p ort network (PN) and  p ort network link 
(PNL) d ata and  the other p rovid es switc h node link (SNL) d ata. The latter rep ort 
is availab le only on the G3r server.
A p ort network link is the hard ware that p rovid es a b rid g e b etween two p ort 
networks in a direc t-c onnec t c onfig uration or b etween a p ort network and  a 
switc h nod e in a c enter stag e c onfig uration. A switc h network link is the hard ware 
that p rovid es a b rid g e b etween two switc h nod es.
The Bloc kag e Stud y Rep orts are d esig ned  to id entify where c ong estion is 
occurring within the switching fabric and provide insight on how ports (load) can 
b e ad justed to ac hieve satisfac tory servic e. Planning  for g rowth add itions is also 
simp lified  b ec ause the rep ort allows q uic k id entific ation and  q uantific ation of 
reserve switching capacity.
Both rep orts are availab le for the following time intervals:
nLast Hour
nTod ay’s Peak
nYesterd ay’s Peak
The Port Network Report p rovid es local Time Division Multiplexed  (TDM) time slot 
usag e, peg s, and  b loc kag es, as well as PNL time slot usag e, p eg s, and  
blockages. The Switch Node Report provides SN to SN time-slot usage, pegs, 
b loc kag es, and  overflow.
Of the 512 TDM time slots in eac h p ort network, usag e measurements are only 
p rovid ed for 483 time slots emp loyed  in c all p roc essing , d ata links, and  
maintenanc e. Usag e is not rep orted  for the remaining  29 time slots, whic h 
p rimarily serve system functions. 
						

							DEFINITY Enterprise Communication Server Release 8.2
Reports Guide  555-233-505  Issue 1
April 2000
Traffic Data Analysis 
3-120 Blockage Study Report 
3
The TDM time slots are samp led  every one hund red sec ond s. Usag e 
measurements for these samp led  intervals are exp ressed  in hund red  c all 
sec ond s or CCS. For examp le, any time slot in use when the samp le is taken is 
assumed  b usy for the entire samp ling  interval and  is c ounted  as one CCS for the 
interval. Bec ause there are 36 CCS in an hour and  483 rep orted  time slots, the 
maximum TDM usag e p er port network is:
It should  b e und erstood  that 17,388 CCS rep resents the maximum c alling  volume 
a sing le port network c an sup p ort. Any c alls that attemp t to exc eed  this 
maximum are b loc ked  b ec ause there are no time slots availab le. When this 
happens, the blockage field (TDM blockage) is incremented.
There are a maximum of 766 p ort network fib er time slots assoc iated  with a p ort 
network c onnec ted  to another p ort network or b etween a p ort network and  a 
switc h node in a c enter stag e c onfig uration. Some of those time slots may b e 
alloc ated  for p ac ket b and wid th, in whic h c ase the numb er is lower. For T1 
remoting , there is a maximum of 188 fib er time slots (PNL Time Slots).
The PNL time slots are sampled  every one hund red  sec ond s. Usag e 
measurements for these samp led  intervals are exp ressed  in hund red  c all 
sec ond s or CCS. For examp le, any time slot in use when the samp le is taken is 
assumed  b usy for the entire samp ling  interval and  is c ounted  as one CCS for the 
interval. Bec ause there are 36 CCS in an hour and  766 rep orted  time slots, the 
maximum PNL usage per port network is:
It should  b e und erstood  that 27,576 CCS rep resents the maximum c alling  volume 
sup p orted b etween p ort networks or b etween a p ort network and  a switc h nod e. 
Any c alls that attemp t to exc eed  this maximum are b loc ked  b ec ause there are no 
time slots availab le. When this hap p ens, the b loc kag e field  (TDM bloc kag e) is 
inc remented .
Maximum TDM usag e =  483 X 36 CCS =  17,388 CCS
Maximum PNL usage =  766 x 36 CCS =  27,576 CCS 
						

							DEFINITY Enterprise Communication Server Release 8.2
Reports Guide  555-233-505  Issue 1
April 2000
Traffic Data Analysis 
3-121 Blockage Study Report 
3
Command
To d isp lay the Blockag e Stud y Rep ort:
1. Type list measurements blockage pn/sn  [print/schedule] 
and  p ress 
RETURN.
Required Fields: There is one req uired  field  for this c ommand  —
yesterday-peak/today-peak/last-hour
. 
nEn t e r  yesterday-peak
 to list the b lockag e activity for yesterd ay’s 
p eak hour. 
nEn t e r  today-peak
 to list the b loc kag e ac tivity for tod ay’s p eak hour. 
nEn t e r  last hour
 to list the b loc kag e ac tivity of the most rec ently 
c omp leted  hour. 
The p eak hour is the hour (within a 24-hour p eriod ) with the g reatest 
usag e.
Options: The print
 and  schedule
 op tions are availab le with this 
command.
Port Network Screen
Screen 3-41 shows a typ ic al Bloc kag e Stud y Port Network Rep ort. Table 3-33 
d esc rib es the d ata field s p resented  in the Bloc kag e Stud y Port Network Rep ort.
Screen 3-41. Blockage Study Port Network Report 
list measurements blockage pn last-hour
Switch Name: Cust_Switch_Name                    Date: 1:45 pm MON SEP 16, 19xx
       BLOCKAGE STUDY REPORT
Meas Time Division Multiplexed (TDM)  Port Network (PN) Link
PN  Hour  Usage  Peg   Peak Blockage    Time-slots Usage  Peg   Peak Blockage
1   1200  2650   5435  125   0            758      2125   3696    72  0
3   1200  7887   1581  250   0            762      6265   1272   170  0
4   1200  6199   8197  190   0            760      5862   4667   195  0 
						

							DEFINITY Enterprise Communication Server Release 8.2
Reports Guide  555-233-505  Issue 1
April 2000
Traffic Data Analysis 
3-122 Blockage Study Report 
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Table 3-33. Blockage Study Port Network Report 
Field Description
PN
Port Network. The port network being measured.
Meas Hour
Measurement Hour. The starting  time (using  the 24-hour c loc k) 
of the hour d uring whic h the d ata was rec ord ed .
TDM Usage
Time Division Mulip lexed  Usag e. The total TDM time-slot 
usag e, in CCS, for the PN b eing  measured , d uring  the 
measurement hour. This is c alc ulated  as follows:
TDM Usage =  Sum of the alloc ated  TDM time slots at the end  
of eac h 100 sec ond  interval in a measurement hour
.
TDM usag e max =  483 x 36 CCS =  17,388 CCS
After eac h 100-sec ond  interval, a snap shot is taken of the 
numb er of TDM time-slots used  on eac h p ort network.
TDM Peg
Time Division Mulip lexed  Peg . The total c ount of c irc uit switc h 
TDM time-slot seizure attemp ts for the PN d uring  the 
measurement hour (req uests for maintenanc e proc esses not 
inc lud ed).
TDM Peak
Time Division Mulip lexed  Peak. The maximum numb er of 
time-slots alloc ated  at any one time d uring  the measurement 
hour.
TDM 
Blockage
Time Division Mulip lexed  Bloc kag e. The total c ount of TDM 
b loc kag es, that is, the total number of times a TDM time-slot 
request is d enied for the PN measured , d uring  the 
measurement hour.
Suggested Action:
 Generally, it is d esirable to b alanc e the 
traffic  ac ross p ort networks. If the usage nears the maximum 
CCS, some resourc es should  b e moved  to another port 
network.
PNL 
Time-Slots
Port Network Link. The numb er of p ort network link time-slots 
availab le b etween p ort networks or b etween p ort networks 
and  switc h nod es. At any g iven time interval, this translation 
value is fixed. (Rememb er, this refers to availab le time slots, 
not measurement d ata.)
Continued on next page 
						

							DEFINITY Enterprise Communication Server Release 8.2
Reports Guide  555-233-505  Issue 1
April 2000
Traffic Data Analysis 
3-123 Blockage Study Report 
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Port 
Network 
Link UsageThe total c irc uit switc h usage of the availab le PN Link(s) 
c onnec ting  the PN to the SN or to other PNs. For d irec tly 
c onnec ted  PNs in three PN systems, this is the sum of the 
usage
 for b oth links. 
PN LINK USAGE =  Sum of the alloc ated  PN Link time-slots at 
the end  of eac h 100 sec ond  interval in a measurement hour
.
PN Link Usag e Max =  766 x 36 CCS =  27,576 CCS.
Port 
Network 
Link PegThe total c ount of c irc uit switc hed time-slot seizure attemp ts 
for the link(s) during the measurement hour.
Port 
Network 
Link PeakThe maximum number of time slots alloc ated  at any one time 
on the p ort network links.
Port 
Network 
Link 
BlockageThe total c ount of c irc uit switc hed PN b loc kag es, that is, the 
total numb er of times a PN link time-slot is d enied  d uring  the 
measurement hour. This c ount inc lud es c alls orig inating  or 
terminating  on this PN. This field  should  be zero for all 
c onfig urations that d o not use T1 remoting and  are smaller 
than 16 PNs sinc e the c enter stag e is non-b loc king in these 
c onfig urations.
Suggested Action:
 Generally, it is d esirab le to b alanc e traffic  
b etween p ort networks, or b etween p ort networks and  switc h 
nod es. If the usag e is hig h for a port network, resourc es may 
need  to b e moved  from one p ort network to another.
Table 3-33. Blockage Study Port Network Report  — Continued
Field Description
Continued on next page 
						

							DEFINITY Enterprise Communication Server Release 8.2
Reports Guide  555-233-505  Issue 1
April 2000
Traffic Data Analysis 
3-124 Blockage Study Report 
3
Switch Node Screen
Screen 3-42 shows a typ ic al Bloc kag e Stud y Switc h Nod e Rep ort. Table 3-34 
describes those data fields presented in the Blockage Study Switch Node Report 
d ifferent from those in the Port Network Rep ort. Refer to Table 3-33
 for d ata fields 
that are the same. This rep ort is only ac c essib le from the G3r server.
Screen 3-42. Blockage Study Switch Node Report 
Table 3-34. Blockage Study Switch Node Report 
Field Description
SN Pair
Sw i t c h  N o d e  Pa i r. Id entifiers for the two SNs c onnec ted  b y the 
SNL b eing  measured .
Meas Hour
Measurement Hour. The starting  time (using  the 24-hour c loc k) 
of the hour d uring whic h the d ata was rec ord ed .
Switch 
Node Link 
(SN) 
Time-Slots The number of switc h nod e link time-slots available b etween 
switc h nod es. At any g iven time interval, this translation value 
is fixed . The SNL time slot maximum is 766; for T1 remoting  it 
is 94.
Switch 
Node Link 
Usage The total c irc uit switc h usage of the SNL c onnec ting  the two 
SNs. This is the total usag e on interconnecting fibers
. At the 
end  of eac h 100-sec ond  interval, a snap shot is taken of the 
numb er of SNL time-slots used  on eac h p ort network. 
Max SNL usag e =  766 x 36 CCS =  27,576.
Switch 
Node Link 
Peg The total c ount of c irc uit switc hed SNL time-slot seizure 
attemp ts d uring  the measurement hour b etween the two 
measured  SNs. This is the total p eg  c ount on all 
interconnecting fibers
.
Continued on next page
list measurements blockage sn last-hour                                Page 1
Switch Name: Cust_Switch_Name                 Date: 05:45 pm THU FEB 23, 19xx
       BLOCKAGE STUDY REPORT
CENTER STAGE
      Meas  Switch Node (SN) Link
SN Pair      Hour      Time-slots     Usage      Peg     Blockage   Overflow
1/2          1600         766          9800      49267       0         0 
						

							DEFINITY Enterprise Communication Server Release 8.2
Reports Guide  555-233-505  Issue 1
April 2000
Traffic Data Analysis 
3-125 Port Network Load Balance Report 
3
Port Network Load Balance Report
The PNL Load  Balanc e Rep orts are d esig ned  to show the load ing  on eac h PN 
and  g ive an ind ic ation of the load sourc e b y c all typ e. Knowing  the load  sourc e 
means informed  d ec isions c an b e mad e on how b est to d ec rease the load  or the 
effec t of ad d ing  various kind s of ports to the PN. Growth c an b e ac c ommod ated  
with a minimum of new eq uip ment.
There are five PN Load  Balanc e Rep orts.
nThe Total rep ort p rovid es an overview of time slot usag e, b loc kag e, p eg s, 
and  oc c up anc y for time slots on the TDM b us and  port network links. This 
rep ort also c ontains an EI b oard  c ontrol utilization field  (G3r only).
nThe other four rep orts inc lud e time slot usag e and  p eg s for the following  
call types:
—Intercom
— Inc oming  Trunk
— Outgoing Trunk
— Tand em Trunk
These rep orts show c harac teristic  p atterns of the load  on eac h p ort 
network for eac h of the c all typ es.
All the rep orts are p eak rep orts; so, d ata is p rovid ed  for yesterday-p eak, 
tod ay-p eak, and  last-hour. The p eak for eac h of the four c all-typ e rep orts 
is time c oinc id ent with the p eak from the Total Report (TDM usag e field ). Switch 
Node Link 
Blockage The total c ount of c irc uit switc hed SNL b loc kag es, that is, the 
total numb er of times a c all is b loc ked  b ec ause no time-slots 
are available either in the most d irec t route or throug h any 
alternate route, d uring the measurement hour.
Switch 
Node Link 
Overflow The total numb er of times a c all is routed  over an alternate 
route. This c ounter is inc remented  when a c all was not 
suc c essfully routed  over the most d irec t route and  is routed  
over an alternate route. This allows you to d isting uish true 
b loc kag e of a c all from the d irec t route b loc kag e.
Suggested Action:
 Generally, the usag e b etween switc h 
nod es should  b e eq ually d istributed . If the usag e b etween 
switch nod es is hig h, you may want to move resourc es to 
another switc h nod e or ad d  a new switc h nod e.
Table 3-34. Blockage Study Switch Node Report  — Continued
Field Description
Continued on next page 
						

							DEFINITY Enterprise Communication Server Release 8.2
Reports Guide  555-233-505  Issue 1
April 2000
Traffic Data Analysis 
3-126 Port Network Load Balance Report 
3
Command
To d isp lay the Port Network Load  Balanc e Rep ort:
1. Type list measurements load-balance   
[print/schedule] 
and  p ress 
RETU RN.
Required Fields: There are two req uired  field s for this c ommand . 
1. total/intercom/incoming/outgoing/tandem
nEn t e r  total
 for an overview of time slot usage, blockage, 
p eg s, and  oc c up anc y.
nEn t e r  intercom
 for time slot usag e and  p eg s for the interc om 
call type.
nEn t e r  incoming
 for time slot usage and p eg s for the 
inc oming  c all typ e.
nEn t e r  outgoing
 or time slot usag e and  p eg s for the outg oing  
call type.
nEn t e r  tandem
 for time slot usage and pegs for the tandem 
call type.
2. yesterday-peak/today-peak/last-hour
nEn t e r  yesterday-peak
 to list the load balanc e ac tivity for 
yesterd ay’s p eak hour. 
nEn t e r  today-peak
 to list the load  b alanc e ac tivity for tod ay’s 
p eak hour. 
nEn t e r  last hour
 to list the load  b alanc e ac tivity of the most 
rec ently c omp leted  hour. 
The p eak hour is the hour (within a 24-hour p eriod ) with the g reatest 
usag e.
Options: The print
 and  schedule
 op tions are availab le for this c ommand . 
						

							DEFINITY Enterprise Communication Server Release 8.2
Reports Guide  555-233-505  Issue 1
April 2000
Traffic Data Analysis 
3-127 Port Network Load Balance Total Calls Report 
3
Port Network Load Balance 
Total Calls Report
Screen
Screen 3-43 depic ts an example of a typical screen for the Port Network Load 
Balanc e Total Calls Rep ort. Table 3-35
 describes the data fields presented in the 
Port Network Load  Balanc e Total Peak Rep ort.
Screen 3-43. Port Network Load Balance Total Calls Report
Table 3-35. Port Network Load Balance Total Calls Report 
Field Description
PN
Port Network. Identifies the p ort network b eing  measured .
Meas Hour
Measurement Hour. The starting  time (using  the 24-hour c loc k) 
of the hour d uring whic h the d ata was rec ord ed .
TDM Usage
Time Division Multiplexed  Usag e. The total TDM time-slot 
usag e, in CCS, for the PN b eing  measured :
TDM Usag e =  Sum of the alloc ated  TDM Time Slots at the end  
of eac h 100 sec ond  interval in a measurement hour
TDM Total Potential Usag e =  483 x 36 CCS =  17,388 CSS
TDM PegTime Division Multiplexed  Peg. The total c ount of c irc uit switc h 
TDM time-slot seizure attemp ts for the PN d uring  the 
measurement hour (req uests for maintenanc e proc esses are 
not inc luded).
TDM Peak
Time Division Multip lexed  Peak. The maximum numb er of TDM 
time-slots alloc ated  at any one time d uring  the measurement 
hour.
Continued on next page
list measurements load-balance total today-peak                          Page 1
Switch Name: Cust_Switch_Name                   Date: 05:45 pm THU FEB 23, 19xx
      PORT NETWORK LOAD BALANCE STUDY REPORT
TOTAL CALLS
Meas  Time Division Multiplexed (TDM)  Port Network (PN) Link  Control
PN  Hour  Usage Peg  Peak  Blockage Occ   Usage Peg  Peak Blockage  Occ   Util
1   1500   625  1522   59   0         6  1103  100  35   0         4     15
2   1500   625  1522   48   0         6  1103  100  35   0         4     15
 .
 .
 . 
						

							DEFINITY Enterprise Communication Server Release 8.2
Reports Guide  555-233-505  Issue 1
April 2000
Traffic Data Analysis 
3-128 Port Network Load Balance Total Calls Report 
3
TDM 
BlockageTime Division Multiplexed  Blockag e. The total c ount of TDM 
b loc kag es, that is, the total number of times a TDM time-slot 
request is d enied for the PN b eing  measured , d uring  the 
measurement hour.
TDM Occ
Time Division Multiplexed  Occ up anc y.  Th e  p e r c e n t  TD M  
Oc cupancy is computed as follows:
(TDM Usag e/TDM Total Potential Usag e) x 100
Suggested Action:
 Generally, the load  should  b e d istrib uted  
evenly ac ross p ort networks. If the p erc ent oc c up anc y is out of 
line with the oc c up anc y on other p ort networks, c onsid eration 
should be g iven to shifting  resourc es. Use the Interc om, 
Outg oing , Inc oming , and  Tand em rep orts to help  d etermine 
whic h resourc es to shift.
Port 
Network 
(PN) Link 
UsageThe total c irc uit switc h usage (Measured  in CCS) of the PN 
Link(s). 
PN Link Usage =  Sum of the alloc ated  PN link time-slots at the 
end  of eac h 100 sec ond  interval in a measurement hour
.
PNL Total Potential Usag e =  766 x 36 CCS =  27,576 CCS
PNL PegPort Network Link Peg. The total numb er of c irc uit switc hed  
time slot seizure attemp ts for the PN d uring  the measurement 
hour.
PNL Peak
Port Network Link Peak. The maximum numb er of PNL time 
slots alloc ated at any one time d uring  the measurement.
Table 3-35. Port Network Load Balance Total Calls Report  — Continued
Field Description
Continued on next page