[asterisk-ss7] Re: CRC4 errors in Asterisk while running on ss7 E1 link (card: Digium TE411p)

Goke Aruna goksie at gmail.com
Sun Sep 24 03:55:38 MST 2006


Hello Umar,

the post should be around march-April 2006 on the same or similar subject.
goksie


umar tarar wrote:
> my zapata.conf was all empty( actually i checked my zapata.conf & it
> was like:
>  
> ----zapata.conf-----
> [channels]
>  
> --------------------------
> thats it)
>  
> and plz could you tell me abtout your previouse posts or where can i
> find those?
>
>  
> On 9/21/06, *Goke Aruna* <goksie at gmail.com <mailto:goksie at gmail.com>>
> wrote:
>
>     what is the content of your zapata.conf?
>
>     empty it and run ztcfg -vvv to clear all the channels and try run
>     asterisk again
>
>     am not an expert but you can dig for same which i posted few
>     months ago.
>
>     goksie
>
>
>     On 9/21/06, *umar tarar* < umar.tarar at gmail.com
>     <mailto:umar.tarar at gmail.com>> wrote:
>
>         still waiting, actually i've not been able to even run my
>         Asterisk server with an SS7 E1 link for once.........can any
>         one help me in this regard plz.....all conf & probs are
>         described in the previous message to this list
>
>
>         On 9/18/06, *umar tarar* <umar.tarar at gmail.com
>         <mailto:umar.tarar at gmail.com> > wrote:
>
>             i am in urgent need to solve this problem
>
>             what happens is:
>             a- with the LED green on the Quad-E1 Digium-TE411P card &
>             crc4 enabled in zaptel.conf, when we try to run Asterisk
>             it simply shows some error related to zaptel & quits back
>             to the LINUX prompt
>
>             b- with the LED green & crc4 disabled in zaptel.conf, the
>             asterisk initially runs successfully, but then starts
>             showing these errors in chan_ss7 module relating to CRC
>             ----------------------------(the CLI log):
>             ------------------------------
>             Asterisk Ready.
>             *CLI> Sep 14 03:05:39 WARNING[5295]: mtp.c:760
>             timeout_sltm_t1: No SLTA received within Q.707 timer T1,
>             trying again on link 'l1'.
>             Sep 14 03:05:48 ERROR[5295]: mtp.c:765 timeout_sltm_t1: No
>             SLTA received within Q.707 timer T1, faulting link on link
>             'l1'.
>             Sep 14 03:05:48 WARNING[5295]: chan_ss7.c:3598
>             monitor_main: MTP is now DOWN on link 'l1'.
>             Sep 14 03:05:48 NOTICE[5295]: mtp.c:471 mtp_changeover:
>             MTP changeover last_ack=4, last_sent=4, from schannel 16,
>             no INSERVICE schannel found
>             Sep 14 03:05:48 NOTICE[5295]: mtp.c:475 mtp_changeover:
>             Failover not possible, no other signalling link and no
>             other host available.
>             Sep 14 03:05:59 WARNING[5295]: mtp.c:760 timeout_sltm_t1:
>             No SLTA received within Q.707 timer T1, trying again on
>             link 'l1'.
>             Sep 14 03:06:08 ERROR[5295]: mtp.c:765 timeout_sltm_t1: No
>             SLTA received within Q.707 timer T1, faulting link on link
>             'l1'.
>             Sep 14 03:06:08 WARNING[5295]: chan_ss7.c:3598
>             monitor_main: MTP is now DOWN on link 'l1'.
>             Sep 14 03:06:08 NOTICE[5295]: mtp.c:471 mtp_changeover:
>             MTP changeover last_ack=8, last_sent=8, from schannel 16,
>             no INSERVICE schannel found
>             Sep 14 03:06:08 NOTICE[5295]: mtp.c:475 mtp_changeover:
>             Failover not possible, no other signalling link and no
>             other host available.
>             ss7 Sep 14 03:06:19 WARNING[5295]: mtp.c:760
>             timeout_sltm_t1: No SLTA received within Q.707 timer T1,
>             trying again on link 'l1'.
>             cluster Sep 14 03:06:21 WARNING[5295]: chan_ss7.c:3534
>             monitor_main: Received CIC=65 for unequipped circuit
>             (typ=CGB), link 'l1'.
>             status
>             Sep 14 03:06:28 ERROR[5295]: mtp.c:765 timeout_sltm_t1: No
>             SLTA received within Q.707 timer T1, faulting link on link
>             'l1'.
>             Sep 14 03:06:28 WARNING[5295]: chan_ss7.c:3598
>             monitor_main: MTP is now DOWN on link 'l1'.
>             Sep 14 03:06:28 NOTICE[5295]: mtp.c:471 mtp_changeover:
>             MTP changeover last_ack=7, last_sent=7, from schannel 16,
>             no INSERVICE schannel found
>             Sep 14 03:06:28 NOTICE[5295]: mtp.c:475 mtp_changeover:
>             Failover not possible, no other signalling link and no
>             other host available.
>
>             *CLI> ss7 linestat
>             Linkset: suic
>             CIC 1 Idle Reset pending BLOCKED Link down
>             CIC 2 Idle Reset pending BLOCKED Link down
>             CIC 3 Idle Reset pending BLOCKED Link down
>             CIC 4 Idle Reset pending BLOCKED Link down
>             CIC 5 Idle Reset pending BLOCKED Link down
>             CIC 6 Idle Reset pending BLOCKED Link down
>             CIC 7 Idle Reset pending BLOCKED Link down
>             CIC 8 Idle Reset pending BLOCKED Link down
>             CIC 9 Idle Reset pending BLOCKED Link down
>             CIC 10 Idle Reset pending BLOCKED Link down
>             CIC 11 Idle Reset pending BLOCKED Link down
>             CIC 12 Idle Reset pending BLOCKED Link down
>             CIC 13 Idle Reset pending BLOCKED Link down
>             CIC 14 Idle Reset pending BLOCKED Link down
>             CIC 15 Idle Reset pending BLOCKED Link down
>             CIC 17 Idle Reset pending BLOCKED Link down
>             CIC 18 Idle Reset pending BLOCKED Link down
>             CIC 19 Idle Reset pending BLOCKED Link down
>             CIC 20 Idle Reset pending BLOCKED Link down
>             CIC 21 Idle Reset pending BLOCKED Link down
>             CIC 22 Idle Reset pending BLOCKED Link down
>             CIC 23 Idle Reset pending BLOCKED Link down
>             CIC 24 Idle Reset pending BLOCKED Link down
>             CIC 25 Idle Reset pending BLOCKED Link down
>             CIC 26 Idle Reset pending BLOCKED Link down
>             CIC 27 Idle Reset pending BLOCKED Link down
>             CIC 28 Idle Reset pending BLOCKED Link down
>             CIC 29 Idle Reset pending BLOCKED Link down
>             CIC 30 Idle Reset pending BLOCKED Link down
>             CIC 31 Idle Reset pending BLOCKED Link down
>
>             *CLI> Sep 14 03:07:08 ERROR[5295]: mtp.c:765
>             timeout_sltm_t1: No SLTA received within Q.707 timer T1,
>             faulting link on link 'l1'.
>             Sep 14 03:07:08 WARNING[5295]: chan_ss7.c:3598
>             monitor_main: MTP is now DOWN on link 'l1'.
>             Sep 14 03:07:08 NOTICE[5295]: mtp.c:471 mtp_changeover:
>             MTP changeover last_ack=6, last_sent=6, from schannel 16,
>             no INSERVICE schannel found
>             Sep 14 03:07:08 NOTICE[5295]: mtp.c:475 mtp_changeover:
>             Failover not possible, no other signalling link and no
>             other host available.
>             Sep 14 03:07:18 WARNING[5295]: mtp.c:760 timeout_sltm_t1:
>             No SLTA received within Q.707 timer T1, trying again on
>             link 'l1'.
>             Sep 14 03:07:19 WARNING[5295]: chan_ss7.c:3534
>             monitor_main: Received CIC=65 for unequipped circuit
>             (typ=CGB), link 'l1'.
>             Sep 14 03:07:27 ERROR[5295]: mtp.c:765 timeout_sltm_t1: No
>             SLTA received within Q.707 timer T1, faulting link on link
>             'l1'.
>             Sep 14 03:07:27 WARNING[5295]: chan_ss7.c:3598
>             monitor_main: MTP is now DOWN on link 'l1'.
>             Sep 14 03:07:27 NOTICE[5295]: mtp.c:471 mtp_changeover:
>             MTP changeover last_ack=7, last_sent=7, from schannel 16,
>             no INSERVICE schannel found
>             Sep 14 03:07:27 NOTICE[5295]: mtp.c:475 mtp_changeover:
>             Failover not possible, no other signalling link and no
>             other host available.
>             Sep 14 03:07:35 NOTICE[5295]: mtp.c:1442 mtp_thread_main:
>             Excessive poll delay 21373!
>             Sep 14 03:07:35 NOTICE[5295]: mtp.c:1496 mtp_thread_main:
>             Full Zaptel input buffer detected, incoming packets may
>             have been lost on link 'l1'.
>             Sep 14 03:07:35 NOTICE[5295]: mtp.c:1543 mtp_thread_main:
>             Empty Zaptel output buffer detected, outgoing packets may
>             have been lost on link 'l1'.
>             Sep 14 03:07:35 NOTICE[5295]: mtp.c:1227 mtp2_read_su:
>             MTP2 CRC error (CRC=0xfe96 != 0xf0b8) on link 'l1'.
>             Sep 14 03:07:35 NOTICE[5295]: mtp.c:1442 mtp_thread_main:
>             Excessive poll delay 13193!
>             Sep 14 03:07:35 NOTICE[5295]: mtp.c:1496 mtp_thread_main:
>             Full Zaptel input buffer detected, incoming packets may
>             have been lost on link 'l1'.
>             Sep 14 03:07:35 NOTICE[5295]: mtp.c:1543 mtp_thread_main:
>             Empty Zaptel output buffer detected, outgoing packets may
>             have been lost on link 'l1'.
>             Sep 14 03:07:35 NOTICE[5295]: mtp.c:1442 mtp_thread_main:
>             Excessive poll delay 14158!
>             Sep 14 03:07:35 NOTICE[5295]: mtp.c:1496 mtp_thread_main:
>             Full Zaptel input buffer detected, incoming packets may
>             have been lost on link 'l1'.
>             Sep 14 03:07:35 NOTICE[5295]: mtp.c:1543 mtp_thread_main:
>             Empty Zaptel output buffer detected, outgoing packets may
>             have been lost on link 'l1'.
>             Sep 14 03:07:35 NOTICE[5295]: mtp.c:1221 mtp2_read_su:
>             Short MTP2 frame len 3 < 5 on link 'l1'.
>             Sep 14 03:07:35 NOTICE[5295]: mtp.c:1442 mtp_thread_main:
>             Excessive poll delay 13360!
>             Sep 14 03:07:35 NOTICE[5295]: mtp.c:1496 mtp_thread_main:
>             Full Zaptel input buffer detected, incoming packets may
>             have been lost on link 'l1'.
>             Sep 14 03:07:35 NOTICE[5295]: mtp.c:1543 mtp_thread_main:
>             Empty Zaptel output buffer detected, outgoing packets may
>             have been lost on link 'l1'.
>             .
>             .
>             .
>             (almost same CLI log as above)
>             .
>             .
>             .
>             Sep 14 03:07:37 NOTICE[5295]: mtp.c:1442 mtp_thread_main:
>             Excessive poll delay 3391!
>             Sep 14 03:07:37 WARNING[5295]: mtp.c:644
>             mtp2_emon_count_error: Excessive errors detected in
>             alignment error rate monitor, link failed on link 'l1'.
>             Sep 14 03:07:37 NOTICE[5295]: mtp.c:1496 mtp_thread_main:
>             Full Zaptel input buffer detected, incoming packets may
>             have been lost on link 'l1'.
>             Sep 14 03:07:37 NOTICE[5295]: mtp.c:1543 mtp_thread_main:
>             Empty Zaptel output buffer detected, outgoing packets may
>             have been lost on link 'l1'.
>             ------------------------------(CLI log:
>             end )---------------------------
>
>             observing this all carefully identifies to us that there
>             is something wrong with the CRC4 when we try to run it on
>             an SS7 link, because on PRI it works all okay
>             moreover it seems that if we enable crc4 in zaptel.conf
>             then the problem is get caught at the very initial steps
>             by the zaptel driver, thats why when we disable it then it
>             lets asterisk run successfully & once chan_ss7.so is
>             loading or loaded, it show the errors(shown in above log)
>
>             we are using:
>              
>             FC-4 (kernal-2.6)
>             Asterisk-1.2.10
>             zaptel-1.2.7
>             chan_ss7-0.8.4
>             (& the SS7-E1 link of the telco do not has any problems as
>             it works all fine on their own SIP server)
>
>             our configuration:
>             --------zaptel.conf----------
>             span=1,1,0,ccs,hdb3,crc4
>             bchan=1-31
>             loadzone=uk
>             defaultzone=uk
>             ---------------------------------
>
>             ----------ss7.conf----------
>             [linkset-siuc]
>             enabled=>yes
>             enable_st=>yes
>             use_connect=>yes
>             hunting_policy=>even_mru
>             subservice=>auto
>
>             [link-l1]
>             linkset=>siuc
>             channels=>1-15,17-31
>             schannels=>16
>             firstcic=>1
>             enabled=>yes
>
>             [host-ACDsvr]
>             enabled=>yes
>             opc=>0x8e0
>             dpc=>suic:0x3fff
>             links=>l1:1
>             ----------------------------
>
>             any thing wrong with the configuration, concept or etc
>             plz help in making the Asterisk work with the ss7 E1 link
>
>
>
>
>         -- 
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