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- ==Phrack Inc.==
-
- Volume One, Issue Nine, Phile #6 of 10
-
- [<+>]->->->->->->->->->->PLP<-<-<-<-<-<-<-<-<-<-[<+>]
- |-| --- |-|
- |P| S [+] The Executioner [+] L |P|
- |h| t [+]-PhoneLine Phantoms!-[+] i |h|
- |a| a |-|-===================-|-| n |a|
- |n| l |S|-| -Present- |-|S| k |n|
- |t| a |e|-===================-|e| o |t|
- |o| g |x|-|Plant Measurement|-|x| L |o|
- |m| |y|-===================-|y| a |m|
- |s| 1 |-|-| Thanks to AT&T. |-|-| n |s|
- |-| 3 [+]-===================-[+] d |-|
- |P| |P|
- |L| [+] Carrier Culprit [+] Egyptian Lover |L|
- |P| [+] The Executioner [+] Solid State |P|
- |-| [+] Black Majik [+] Mr. Icom |-|
- |$| ----------------------------------------- |$|
- [<+>]->->->->->->->->->->PLP<-<-<-<-<-<-<-<-<-<-[<+>]
-
- Preface
- =======
-
- This first part in a series of three deals with how your CO measures its
- efficiency and hardware performance. I don't know how far I will go in this
- first segment so whatever I don't finish will be completed in parts two and
- three.
-
- Introduction
- ============
-
- Have you ever gone trashing and the only thing you found was a large
- printout that looked like it was written in Chinese? Did you curse yourself
- because you spent 30 minutes digging through someone's lunch and digestive
- rejectables and the only thing that was readable was a large spool that
- contained such acronyms as TRUNK and CAMA and LATA linked by foreign letters
- that you never thought could be conjugated? Well, in this 3 part series, I
- hope to show you that that large printout with coffee stains isn't all
- useless.
-
- Types of Measurements
- =====================
-
- Now, the way your CO determines how well it is serving you is by the
- Plant Measurement. The purpose of these measurements is to provide maintenance
- personnel with a quantitative summary of the condition of the hardware and its
- impact on customer service.
- This data is printed out at the system terminal and is used to alert
- personnel about problems before they occur.
-
- Plant Measurement data is printed on the maintenance terminal via the
- following output messages:
-
- 1. PM01 - The PM01 is a daily printout which is printed daily at 2:30 am.
-
- 2. PM02 - The PM02 is a monthly summary printed immediately after the
- daily PM01 printout only on the 23rd of each month.
-
- 3. PM05 - The PM03 is a daily printout which is printed after the PM01 or
- PM02 (on the 23rd). The PM05 is utilized in offices equipped
- with the AUTOPLEX System 100 (Advanced Mobile Telephone
- Service).
-
- 4. PM03 - This is a daily or monthly printout which is available upon
- manual request.
-
- ------------------------------------------------------------
-
- The counts provided by the plant measurement are basically 3 types:
-
- 1. Customer Service Measurements
- 2. Hardware Performance Measurements
- 3. Base Measurements
-
-
- Customer service measurements are a measure of the service received by
- the customer as influenced by the condition of the system's hardware. These
- include the number of calls to billings that are offered to the system but are
- delayed or lost because of marginal or faulty equipment.
-
- Hardware Measurements are an indication of the condition of the system
- hardware which is described in terms of the number of errors, trouble
- indications, and out of service intervals. These measurements may not reflect
- customers directly, but do indicate how well the system is functioning.
-
- Base Measurements that are provided are counts of the total calls carried
- by the system broken into various categories. These counts are necessary to
- normalize service counts and performance counts of mechanical units if
- comparisons are to be made of offices with dissimilar traffic characteristics.
-
-
- Daily PM01 Output Message
- =========================
-
- The daily Plant Measurement data in the PM01 output message is organized
- as follows:
-
- o Base Measurements
- o Selected Customer Service Measurements
- o Maintenance Measurements including emergency action
- (EA), maintenance interrupts, and network failures
- o Performance measurements of system hardware including
- the central processor and bus system
- o Coded enable peripheral units, peripheral units, and
- trunk and service circuits.
- o Time-Out totals
- o Attached processor measurements
- o Circuit Switch Digital Capability measurements
- o Improved Public Telephone Service measurements
- o Remote Switch System measurements
-
- ===================
- =Base Measurements=
- ===================
-
- The base measurements provided by the PPMP1A00 are needed to normalize
- the service counts and performance counts of units whose uses vary with the
- traffic load. By using these counts, meaningful comparisons can be made with
- past performance and with the performance of offices with dissimilar traffic
- characteristics. The counts are taken in terms of carried load (excluding all
- traffic overflow).
-
- The BASE MEASUREMENTS are as follows, with the printout in parenthesis:
-
- 1. Originate Calls (ORIG CALLS): Counts the number customer receiver seizures
- for which at least 1 digit is received. The count includes partial dials
- (but not permanent signals) as well as additional partied added to a
- conference circuit. The PPMP1A00 obtains this from the traffic measurements
- program.
-
- 2. Incoming Calls (INC CALLS): Counts the number of calls originating from
- trunks incoming from distant locations that seize an incoming register (and
- in the case of a by-link, receive one digit). The PPMP1A00 obtains this
- count directly from the traffic measurements program.
-
- 3. Outgoing Calls (OUTG CALLS): Counts the number of calls for which
- outpulsing is required and a transmitter is successfully seized.
-
- 4. Coin Control Seizures (COIN CONTR SEIZ): Counts the number of times the
- coin control circuit is successfully connected to a coin line. This count
- will exceed coin line originations as the coin control circuit may be
- seized more than once during a call.
-
- 5. CAMA Seizures (CAMA SEIZ): Counts then number of times an incoming CAMA
- trunk (operator or ANI) is seized.
-
- 6. AMA Entries (AMA ENTRIES): Counts the number of billing entries put on AMA
- tape.
-
- 7. Automatic ID. Outward Dialing Seizures (AIOD SEIZ): Counts the number of
- successful connections to an AIOD receiver.
-
- 8. Centrex Data Link Seizures (CTX DL SEIZ): Counts the number of connections
- to a centrex DL for transmission or reception of lamp and key orders. This
- is NOT a count of centrex calls.
-
- 9. Output Message Register (OMR SEIZ): Counts the number of seizure output
- message registers.
-
- ======================
- =Service Measurements=
- ======================
-
- The service measurements give valid indications of the level of customer
- service. A count of the calls lost by the system, as a result of hardware
- malfunctions, is a significant measure of the influence of the condition of
- the central office hardware on customer service. The following service
- measurements are provided.
-
- 1. Hardware Lost Calls (HWR LOST CALLS): Counts the number of calls dropped
- when a trunk is suspected and is placed on the trunk maintenance list (TML)
- for diagnosis or when a network failure has occurred on the call.
-
- 2. Hardware Lost Billing (HWR LOST BILLING): Counts the number of calls not
- billed because both AMAs are out of service (local, long distance, and
- special service calls are allowed to proceed without billing).
-
- 3. Coin Control Failures (COIN CONTR FAILURES): Counts the number of stuck
- coin conditions and coin telephones served by the office which had coin
- relays that were out of limits.
-
- 4. Automatic Identification Outward Dialing Special Billing Number Billing
- (AIOD SBN BILLING): Counts the number of times the AIOD equipment fails to
- bill a local PBX number correctly.
-
- 5. Dial Tone Speed Test (DTST): Counts the number of times the customer has to
- wait an excessive amount of time for the system to process the call because
- trunks in the desired trunk group are busy or the system is overloaded,
- causing queuing for equipment. The count includes 3-second and 11-second
- delays.
-
- NOTE:
- Maintenance personnel may find it necessary
- to suspend the running of the DTST because in
- certain trouble conditions DTST may generate
- traffic that would interfere with maintenance
- activities. Extended or frequent use of this
- feature is not recommended. To discourage the
- unnecessary use of this function, the PM01 output
- message will include a one-line message alerting
- maintenance personnel to it's use.
-
- 6. CAMA Lost Billing (CAMA LOST BILLING): Counts the number of times a CAMA
- call is handled but due to hardware failure, no AMA register is available
- which is necessary for billing.
-
- 7. CAMA ANI Failures (CAMA ANI FAILURES): Counts the number of calls for which
- ANI failure digit is received.
-
- 8. Receiver Attachment Delay (RCVR ATT DELAY): Counts the number of times a
- receiver connection was not made in 4 seconds.
-
- 9. Receiver Attachment Delay Recorder (RADR Inhibit Usage): Counts the number
- of 100-second intervals during which the RADR feature was inhibited.
-
- 10. False Starts (FALSE STARTS): Counts the number of times a receiver is
- seized and then abandoned because no digit was received.
-
- ==========================
- =Maintenance Measurements=
- ==========================
-
- A concise summary of maintenance measurements is given as follows:
-
- o Emergence Action
- o Interrupts
- o Network Failures
-
- Emergency Action
- ----------------
-
- The software EA phases may be initiated by the following sources:
-
- 1. A failure by the system to answer an interrupt request
- 2. An E-to-E cycle becoming excessive
- 3. An E-to-E priority class frequency failure
- 4. An excessive rate of interrupts
- 5. Two successive data validation failures
- 6. The time spent in a phase becoming excessive
- 7. Aborting of a phase
-
- The number of EA phases is printed on the PM01 output message.
-
- Interrupts
- ----------
-
- The number of various maintenance interrupts provides a picture of nonroutine
- maintenance action taken by the system. These interrupts are generally not as
- serious as a higher order EA phase, but they do interrupt normal call
- processing to correct possible hardware problems. A counts of these interrupts
- will give a good indication of the state of the systems' equipment. This is
- printed on the PM01 output message.
-
- Network Failures
- ----------------
-
- The network failure counts are provided to give an indication of how well the
- network is completing and terminating calls. Each time a network failure
- occurs in the system an 'NT' output message is printed. The following are
- printed as part of the PM01 message:
-
- 1. Supervisory Scan failure (SUPF)
- 2. False cross and ground test failure (FCGF)
- 3. Ringing Current Failure (RC)
- 4. Low-line resistance failure (LLR)
- 5. Power Cross test (PX)
- 6. Restore verify failure count (RVFY)
- 7. Showering line test failure (SHWL)
- 8. Call Cutoff Failure (CO)
-
- ================================
- =An Example of the PM01 Message=
- ================================
-
- PM01
- 201-232 PLANT MEASUREMENTS SUMMARY
- TUES
- 10/17/86
-
- SERVICE AFFECTING DATA
-
- BASE MEASUREMENTS
-
- 2 ORIG CALLS
- 1 INC CALLS
- 0 OUTG CALLS
- 0 COIN CONTR FAILURES
- 0 OMR SEIZ
- 34 CAMA SEIZ
- 0 AMA ENTRIES
- 0 AIOD SEIZ
- 0 CTX D-L SEIZ
-
- SERVICE MEASUREMENTS
-
- 0 HWR LOST CALLS
- 0 HWR LOST BILLING
- 0 COIN CONTR FAILURES
- 0 AIOD-SBN BILLING
- 0 DTST DELAYS
- 0 CAMA LOST BILLING
- 0 CAMA ANI FAILURE
- 0 RCVR ATT DELAYS
- 0 RADR INHIBIT USE
- 2 FALSE STARTS
-
- [Note 201-232 is the area code-office code]
-
- ============================================================
- = (C) Copyright Sexy-Exy and PLP 1986 =
- ============================================================
-
-
- ==============================================================================
-