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

Stuart Sheldon stu at actusa.net
Thu Jul 27 17:14:42 MST 2006


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Maybe I missed something, but which side provides the clock? Have you
tried reversing the clock source? Sure looks like timing errors to me.

Stu Sheldon


Sterling Moses wrote:
> 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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