[asterisk-users] Merlin Legend PRI not quite there yet

Sterling Moses sterling at zixion.com
Thu Jul 27 16:56:02 MST 2006


Greetings list,

I have been beating around a problem for a while now and decided  
after weeks of searching I would try the list once again.

The jist is this:

Merlin Legend connected to verizon via a 100D (PRI) card. Works great.

Asterisk connected via a crossover'd TE110P to a second 100D (PRI) in  
the legend.

The green light on the TE110P comes on, but we have a red alarm on  
the 100D card.

Asterisk can see RED ALARMS on the PRI when we busy out the 100D card  
on the legend system. Asterisk also shows the alarms disappear when  
we restore the 100D card on the legend.  We reset the card and run a  
loopback. After the loopback the red alarm is gone for roughly 4 to  
10 minutes then turns back on. I believe this to be a "threshold" of  
errors being reached which triggers the red alarm.

Checking the status of the 100D card shows it has a RED alarm and  
error events:
Checking the error events shows

MIS (Misframes) 250
Slips: 57
Errored Seconds: 255
Bursty Seconds: 017
Severely Errored Seconds: 255
Frame Slips: 255

We have replaced the crossover cable. (Using standard 1-5, 2-4, 4-2,  
5-1 pinout).

We have replaced the 100D with a known good unit

We have replaced the previous T100P with this new TE110P

We replaced the server with a supermicro P4 server.

All the results are the same.

QUESTION is where can I go from here? What can we do to correct this  
problem? Could this be a timing setting on the legend switch?

Anything would be appreciated, even a snicker or two about our still  
using merlin legends will be accepted. :-)

Sterling.



Asterisk intense debug on span 1:
---------------------------------------------

--- SNIP ----

 > Unnumbered frame:
 > SAPI: 00  C/R: 1 EA: 0
 >  TEI: 000        EA: 1
 >   M3: 3   P/F: 1 M2: 3 11: 3  [ SABME (set asynchronous balanced  
mode extended) ]
 > 0 bytes of data
asterisk1*CLI>
< [ 00 03 7f ]

< Unnumbered frame:
< SAPI: 00  C/R: 0 EA: 0
<  TEI: 001        EA: 1
<   M3: 3   P/F: 1 M2: 3 11: 3  [ SABME (set asynchronous balanced  
mode extended) ]
< 0 bytes of data
Sending Set Asynchronous Balanced Mode Extended

 > [ 02 01 7f ]

 > Unnumbered frame:
 > SAPI: 00  C/R: 1 EA: 0
 >  TEI: 000        EA: 1
 >   M3: 3   P/F: 1 M2: 3 11: 3  [ SABME (set asynchronous balanced  
mode extended) ]
 > 0 bytes of data
asterisk1*CLI>
< [ 00 03 7f ]

< Unnumbered frame:
< SAPI: 00  C/R: 0 EA: 0
<  TEI: 001        EA: 1
<   M3: 3   P/F: 1 M2: 3 11: 3  [ SABME (set asynchronous balanced  
mode extended) ]
< 0 bytes of data
Sending Set Asynchronous Balanced Mode Extended

 > [ 02 01 7f ]

 > Unnumbered frame:
 > SAPI: 00  C/R: 1 EA: 0
 >  TEI: 000        EA: 1
 >   M3: 3   P/F: 1 M2: 3 11: 3  [ SABME (set asynchronous balanced  
mode extended) ]
 > 0 bytes of data
asterisk1*CLI>
< [ 00 03 7f ]

< Unnumbered frame:
< SAPI: 00  C/R: 0 EA: 0
<  TEI: 001        EA: 1
<   M3: 3   P/F: 1 M2: 3 11: 3  [ SABME (set asynchronous balanced  
mode extended) ]
< 0 bytes of data
Sending Set Asynchronous Balanced Mode Extended

 > [ 02 01 7f ]

 > Unnumbered frame:
 > SAPI: 00  C/R: 1 EA: 0
 >  TEI: 000        EA: 1
 >   M3: 3   P/F: 1 M2: 3 11: 3  [ SABME (set asynchronous balanced  
mode extended) ]
 > 0 bytes of data

------ snip -------


ztcfg -vvvvv shows:

Zaptel Configuration
======================

SPAN 1: ESF/B8ZS Build-out: 0 db (CSU)/0-133 feet (DSX-1)

Channel map:

Channel 01: Clear channel (Default) (Slaves: 01)
Channel 02: Clear channel (Default) (Slaves: 02)
Channel 03: Clear channel (Default) (Slaves: 03)
Channel 04: Clear channel (Default) (Slaves: 04)
Channel 05: Clear channel (Default) (Slaves: 05)
Channel 06: Clear channel (Default) (Slaves: 06)
Channel 07: Clear channel (Default) (Slaves: 07)
Channel 08: Clear channel (Default) (Slaves: 08)
Channel 09: Clear channel (Default) (Slaves: 09)
Channel 10: Clear channel (Default) (Slaves: 10)
Channel 11: Clear channel (Default) (Slaves: 11)
Channel 12: Clear channel (Default) (Slaves: 12)
Channel 13: Clear channel (Default) (Slaves: 13)
Channel 14: Clear channel (Default) (Slaves: 14)
Channel 15: Clear channel (Default) (Slaves: 15)
Channel 16: Clear channel (Default) (Slaves: 16)
Channel 17: Clear channel (Default) (Slaves: 17)
Channel 18: Clear channel (Default) (Slaves: 18)
Channel 19: Clear channel (Default) (Slaves: 19)
Channel 20: Clear channel (Default) (Slaves: 20)
Channel 21: Clear channel (Default) (Slaves: 21)
Channel 22: Clear channel (Default) (Slaves: 22)
Channel 23: Clear channel (Default) (Slaves: 23)
Channel 24: D-channel (Default) (Slaves: 24)

24 channels configured.

ztclock shows:
-----------------------------
ztclock - clock source accuracy test (3 passes)

Flushing input buffer...
Flush Complete.

Test is approximately 3 minutes. Please wait...

483328 samples in 60.432003 sec. (483457 sample intervals) 99.973312%
483328 samples in 60.431998 sec. (483456 sample intervals) 99.973518%
483328 samples in 60.432003 sec. (483457 sample intervals) 99.973312%

Estimate 8 frame slips every 3.746729 seconds.


------------------------------
Zaptel.conf:
# It must be in the module loading order
span=1,0,0,esf,b8zs
bchan=1-23
dchan=24

# Global data

loadzone        = us
defaultzone     = us

-------------------------------
zapata.conf

;
; Zapata telephony interface
;
; Configuration file

[channels]
language=en
context=from-zaptel
switchtype=5ess
signalling=pri_net
group=80
channel => 1-23

--------------------------------
Legend configs are:

A    DS1 SLOT ATTRIBUTES

A    Slot  Type  Format  Supp  Signal  LineComp
A     13   PRI   ESF     B8ZS  DMI-MOS   1
A     14   PRI   ESF     B8ZS  DMI-MOS   1

A       Slot 13     Switch: 5ESS
A       Slot 14     Switch: 5ESS

A   System: By line

A   PRI INFORMATION

A       Slot 13     Switch: 5ESS

A       Slot 14     Switch: Legend-Ntwk

A   System: By line

A   BchnlGrp #: Slot:  TestTelNum:   NtwkServ:    Incoming Routing:
A    1          13                   CallbyCall   By Dial Plan

A   Channel ID: 23 22 21 20 19 18 17 16 15 14
A               13 12 11 10  9  8  7  6  5  4
A                3  1  2

A   Line    PhoneNumber     NumberToSend
A    821                    509
A    822                    509
A    823                    509
A    824                    509
A    825                    509
A    826                    509
A    827                    509
A    828                    509
A    829                    509
A    830                    509
A    831                    509
A    832                    509
A    833                    509
A    834                    509
A    835                    509
A    836                    509
A    837                    509
A    838                    509
A    839                    509
A    840                    509
A    841                    509
A    842                    509
A    843                    509

A   BchnlGrp #: Slot:  TestTelNum:   NtwkServ:    Incoming Routing:
A   80          14                   ElecTandNtwk  Route Directly to UDP

A   Channel ID: 23 22 21 20 19 18 17 16 15 14
A               13 12 11 10  9  8  7  6  5  4
A                3  2  1

A   Line    PhoneNumber     NumberToSend
A    845
A    846
A    847
A    848
A    849
A    850
A    851
A    852
A   PRI INFORMATION


A    853
A    854
A    855
A    856
A    857
A    858
A    859
A    860
A    861
A    862
A    863
A    864
A    865
A    866
A    867






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