Service Restore on PRI in LD60 1

[bttirc]

First of all thanks to all for the help you provide!

I have 3 option 11's connected to an option 61 via PRI tie lines. On one of the systems, the service restore in LD60 is set to no which I assume means if the PRI goes down the channels will have to be manually enabled. is there a way to set Service Restore to yes?

 

[GHTROUT]

tnphoneman" from Tek-Tips brought these prompts to my attention, when I posted this:

http://www.tek-tips.com/viewthread.cfm?qid=1521586

Here is an excerpt from the books:


BIPC Value 0-(2)-128
Bipolar violation Count threshold
This is the maximum number of times a DTI/PRI
loop can be taken out of service in 24 hours. If this
threshold is reached the DTI/PRI must be restored
to service manually.

LFAC Value 0-(3)-128
Loss-of-Frame-Alignment Counter
This is the maximum number of times a DTI/PRI
loop can be taken out-of-service in 24 hours. If
this threshold is reached the DTI/PRI must be
restored to service manually.



This is an example of a naughty LD73 DDB:
[tt]
REQ prt
TYPE ddb
PREF 39
SREF 0
TRSH 00 <--- This is the datablock we will change
RALM 128
BIPC 128 <---This is a value we will change
LFAC 128 <---This is a value we will change
BIPV 4 4
SRTK 24 3600
SRNT 1024 1024
LFAL 10240 10240
SRIM 127
SRMM 127
ICS


This is an example of changing it:
REQ chg
TYPE ddb
PREF
SREF
TRSH 0
RALM
BIPC 0
LFAC 0
BIPV
SRTK
SRNT
LFAL
SRIM
SRMM
TRSH
ICS
MEM AVAIL: (U/P): 10649913 USED U P: 3956964 728546 TOT: 15335423
DISK SPACE NEEDED: 880 KBYTES
2MB BACKUP DISKETTE(S) NEEDED: 1 (PROJECTED LD43 - BKO)
REQ end
[/tt]

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--

 

[bttirc]

Thanks GHTROUT for your reply. I checked the settings in ld 73 and found they were set in threshold 5 to BIPC-2 and LFAC-3. i was able to change them both to 0 but when i checked ld 60, it was still showing service restore: no. i also noticed there is a threshold 0 and a threshold 5 in ld 73. i did a prt in ld 22 type cequ and the pri's are using threshold 5.
when i looked at the far end (option 61), they are also set for threshold 5 in ld 22 prt cequ. when i prt ddb in ld 73 on the option 61 the bipc and lfac are both set for 128. i checked the other loops in ld 60 and they are all service restore: yes. only the one has service restore set to no. should i change the bipc and lfac from 128 to 0 in the option 61?
i feel like i am missing something, just not sure what!

Thanks again!

 

[GHTROUT]

Curious. I searched the books for this and came up with more questions. When you STAT this, does it say Yellow Alarm Processing=YES

If not, do .ENYL (loop). Then see if that changes the Service Restore.

As for the BIPC and LFAC, make then 0 on all systems. I do.

--
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--

 

[bttirc]

yes, when i stat the loops yellow alarm processing is yes.
i also reset the counters.

 

[GHTROUT]

Hmmm. I am not certain, but this might be it. Figure out the DCH associated with this PRI. For example, let's say we found it was DCH 2.

We have to DIS DCH 2 - which means you will go out of service. But you have to DIS it before the SERV command.

>LD 96

.DIS DCH 2

then

.ENL SERV 2

then

.ENL DCH 2

Then, LD 60 - STAT it and see if that did it.

This is the only thing in the books that has any reference to "Service"

There is of course, a DIS SERV command too...in case things turn awry.

--
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--

 

[bttirc]

Thanks, GHTROUT. i have to work out of town today but will try when i return and post the results.

 

[bhassell2000]

Gene, this entire thread intrigues me. Help me understand this? My STAT SERVs all are diusanled but my T1 shows SERVICE RESTORE YES. I dont believe I have ever seen a T1 say service restore no in my years with Nortel PBXs

>ld 96
DCH000
.stat serv
DCH 000 SERV : DSBL
DCH 001 SERV : DSBL
DCH 003 SERV : DSBL
DCH 004 SERV : DSBL
DCH 020 SERV : DSBL
DCH 022 SERV : DSBL
DCH 023 SERV : DSBL
.****
OVL000
>*
OVL000
>ld 60
DTI000
.stat 2

PRI* TRK LOOP 2 - ENBL
FFMT/LCMT/YALMT: ESF/B8Z/FDL
TRACKING
SERVICE RESTORE: YES
YEL ALM PROCESS: YES
ALARM STATUS : NO ALARM
CH 01 - IDLE TIE VOD * CH 02 - BUSY TIE VOD *
CH 03 - BUSY TIE VOD * CH 04 - IDLE TIE VOD *
CH 05 - BUSY TIE VOD * CH 06 - IDLE TIE VOD *
CH 07 - IDLE TIE VOD * CH 08 - IDLE TIE VOD *
CH 09 - IDLE TIE VOD * CH 10 - IDLE TIE VOD *
CH 11 - IDLE TIE VOD * CH 12 - IDLE TIE VOD *
CH 13 - IDLE TIE VOD * CH 14 - BUSY TIE VOD *
CH 15 - IDLE TIE VOD * CH 16 - BUSY TIE VOD *
CH 17 - IDLE TIE VOD * CH 18 - IDLE TIE VOD *
CH 19 - IDLE TIE VOD * CH 20 - IDLE TIE VOD *
CH 21 - IDLE TIE VOD * CH 22 - IDLE TIE VOD *
CH 23 - IDLE TIE VOD * CH 24 - DCH 0


Thanks,

Buddy

Linked in Profile

http://www.linkedin.com/in/buddyhassell

 

[johnpoole]

do they have problems after a power cycle? service msgs are off by default because they can cause problems.. they are only used during the enable command, so do not turn them on unless you have a reason.. the only time i have needed them was when the pri came up but the channels had to be brought up one at a time..

john poole
bellsouth business
columbia,sc

 

[GHTROUT]

Good advice. Thank you! So how does one enable Service Restore?

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--

 

[bttirc]

Here is what i have. This is the stat in ld 60 on the option 11 switch. these tie lines go to an option 61 switch. There is another pri for outside lines in this switch, its Service Restore is yes. I also did a lcnt with results listed below, all zeros. the prt ddb for trsh 05 in ld 73 is also listed below for this switch. The corresponding option 61 printouts follow.
And yes, anytime there is a power cycle (planned or unplanned) i have to go in and manually enable each channel on this loop.

PRI* TRK LOOP 2 - ENBL
FFMT/LCMT/YALMT: ESF/B8Z/FDL
SERVICE RESTORE: NO
YEL ALM PROCESS: YES
ALARM STATUS : NO ALARM
CH 01 - IDLE TIE 3VCE * CH 02 - IDLE TIE 3VCE *
CH 03 - IDLE TIE 3VCE * CH 04 - IDLE TIE 3VCE *
CH 05 - IDLE TIE 3VCE * CH 06 - IDLE TIE 3VCE *
CH 07 - IDLE TIE 3VCE * CH 08 - IDLE TIE 3VCE *
CH 09 - IDLE TIE 3VCE * CH 10 - IDLE TIE 3VCE *
CH 11 - IDLE TIE 3VCE * CH 12 - IDLE TIE 3VCE *
CH 13 - IDLE TIE 3VCE * CH 14 - IDLE TIE 3VCE *
CH 15 - IDLE TIE 3VCE * CH 16 - IDLE TIE 3VCE *
CH 17 - IDLE TIE 3VCE * CH 18 - IDLE TIE 3VCE *
CH 19 - IDLE TIE 3VCE * CH 20 - IDLE TIE 3VCE *
CH 21 - IDLE TIE 3VCE * CH 22 - BUSY TIE 3VCE *
CH 23 - BUSY TIE 3VCE * CH 24 - DCH 4

.lcnt

PRI TRK LOOP 2
TRSH CNT:
BPV -000
SLIPD -000
SLIPR -000
CRC -000
LOSFA -000
OS_BPV -000
OS_LOSFA-000
OS_YEL -000



REQ prt
TYPE ddb

CLKN 1
PREF 1
SREF FREE RUN

TRSH 00
RALM 3
BIPC 0
LFAC 0
BIPV 3 2
SRTK 5 30
SRNT 15 3
LFAL 17 511
SRIM 1
SRMM 2
ICS

TRSH 05
RALM 3
BIPC 0
LFAC 0
BIPV 3 2
SRTK 5 30
SRNT 15 3
LFAL 17 511
SRIM 1
SRMM 2

This is the stat for the corresponding option 61. There are a total of 6 pri circuits in this switch, all others have Service Restore: Yes. I have also shown lcnt in ld 60 as well as prt DDB in ld 73 for this switch.

PRI* TRK LOOP 11 - ENBL
FFMT/LCMT/YALMT: ESF/B8Z/FDL
SERVICE RESTORE: NO
YEL ALM PROCESS: YES
ALARM STATUS : NO ALARM
CH 01 - IDLE TIE 3VCE * CH 02 - IDLE TIE 3VCE *
CH 03 - IDLE TIE 3VCE * CH 04 - IDLE TIE 3VCE *
CH 05 - IDLE TIE 3VCE * CH 06 - IDLE TIE 3VCE *
CH 07 - IDLE TIE 3VCE * CH 08 - IDLE TIE 3VCE *
CH 09 - IDLE TIE 3VCE * CH 10 - IDLE TIE 3VCE *
CH 11 - IDLE TIE 3VCE * CH 12 - IDLE TIE 3VCE *
CH 13 - IDLE TIE 3VCE * CH 14 - IDLE TIE 3VCE *
CH 15 - IDLE TIE 3VCE * CH 16 - IDLE TIE 3VCE *
CH 17 - IDLE TIE 3VCE * CH 18 - IDLE TIE 3VCE *
CH 19 - IDLE TIE 3VCE * CH 20 - IDLE TIE 3VCE *
CH 21 - IDLE TIE 3VCE * CH 22 - BUSY TIE 3VCE *
CH 23 - BUSY TIE 3VCE * CH 24 - DCH 37

PRI TRK LOOP 11
TRSH CNT:
BPV -000
SLIPD -000
SLIPR -000
CRC -000
LOSFA -000
OS_BPV -000
OS_LOSFA-000
OS_YEL -000

REQ prt
TYPE ddb

PREF 8
SREF FREE RUN

TRSH 05
RALM 3
BIPC 0
LFAC 0
BIPV 4 4
SRTK 24 3600
SRNT 1000 1000
LFAL 17 511
SRIM 1
SRMM 127
ICS

Thanks for your assistance!!

 

[bttirc]

here is a little more info...i did stat serv in ld 96 on all systems(3 option 11's and 1 option 61). if the pri is a tie line from option 11 to 61 and option 61 to 11, stat serv was enbl on both ends. if the pri was going to telco i.e. DID circuits, stat serv was dsbl. i logged into the option 61 and the option 11 with service restore=no, disabled the dch in both systems, disabled the serv for the respective dch in both systems, reenabled the dch, the pri came back up but still service restore=no. i then disabled the dch again, changed the serv back to enable on both systems and reenabled the dch. the pri came back up but service restore=no still. the only other thing i can think of is to disable the dch's in the option 11, down the system, power back up and reenable and see what happens!?
any other ideas?

Thanks!!

 

[GHTROUT]

I commend you for pushing this. You'll be a pioneer if you prompt the answer from someone. It is a great question.

Someone - anyone - How do you get SERVICE RESTORE: NO to be SERVICE RESTORE: YES


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--

 

[bttirc]

Thanks for hanging with me GHTROUT. i appreciate all of your ideas and support!

 

[Prinz]

I had a SERVICE RESTORE: NO about an hour ago. Probably too many LOSFA due to faulty fibre.

I did what I normally do when I'm having DCH/Loop issues, and that I haven't seen in this thread yet.
Disable the DCH, Disable the Loop, Enable the Loop. This changed it from SERVICE RESTORE: NO to YES.

 

[Prinz]

Just as an addendum, the SERV ENBL/DSBL on the DCH does not actually affect the SERVICE RESTORE on the associated Loop.