[asterisk-ss7] MTP2 CRC error (CRC=0x74b0 != 0xf0b8) on link 'g1'.
Mitul Limbani
mitul at enterux.com
Tue Jan 16 14:15:37 MST 2007
Hello,
First and foremost, I shall like to thank guys at Sifra to make
chan_ss7 possible.
interesting I found that while using chan_ss7.0.9.tar.gz, my calls
never seem to get established and i used to get crazy kind of errors
like
---------------------------------------------------------------------------
Jan 16 20:31:19 DEBUG[8628] mtp.c: MTP2 bitstream frame format error,
entering octet counting mode on link 'g1'.
Jan 16 20:31:19 DEBUG[8628] mtp.c: Last raw bits on link 'g1': d2 00 1c
90 fd c3 d2 00 1c 90 fd c3 d2 00 1c 90 fd c3 d2 00 1c
90 fd c3 d2 00 1c 90 a8 a8 a8 a8 a8 ff ff ff
Jan 16 20:31:28 DEBUG[8628] mtp.c: MTP2 bitstream frame format error,
entering octet counting mode on link 'g1'.
Jan 16 20:31:28 DEBUG[8628] mtp.c: Last raw bits on link 'g1': 1c 90 fd
c3 d2 00 1c 90 fd c3 d2 00 1c 90 fd c3 d2 00 1c 90 fd
c3 d2 00 1c 90 fd c3 d2 54 54 54 54 ff ff ff
Jan 16 20:31:33 DEBUG[8628] mtp.c: MTP2 bitstream frame format error,
entering octet counting mode on link 'g1'.
Jan 16 20:31:33 DEBUG[8628] mtp.c: Last raw bits on link 'g1': 1c 90 fd
c3 d2 00 1c 90 fd c3 d2 00 1c 90 fd c3 d2 00 1c 90 fd
c3 d2 00 1c 90 fd c3 51 51 51 51 51 ff ff ff
Jan 16 20:31:43 DEBUG[8628] mtp.c: MTP2 bitstream frame format error,
entering octet counting mode on link 'g1'.
Jan 16 20:31:43 DEBUG[8628] mtp.c: Last raw bits on link 'g1': 1c 90 fd
c3 d2 00 1c 90 fd c3 d2 00 1c 90 fd c3 d2 00 1c 90 fd
c3 d2 00 1c 90 fd c3 d2 51 51 51 51 ff ff ff
Jan 16 20:31:44 DEBUG[8628] mtp.c: Got MSU on link 'g1' sio=1 slc=0
m.sls=0 bsn=1/7, fsn=1/24, sio=c1, len=15: a6 0f e8 03 11
80 e7 e8 e9 ea eb ec ed ee
Jan 16 20:31:44 DEBUG[8628] mtp.c: Sending buffer to zaptel len=18, on
link 'g1'.
Jan 16 20:31:52 DEBUG[8628] mtp.c: MTP2 bitstream frame format error,
entering octet counting mode on link 'g1'.
Jan 16 20:31:52 DEBUG[8628] mtp.c: Last raw bits on link 'g1': 8c 80 7d
b6 df 84 46 40 3e db 6f c2 23 20 1f 6d b7 e1 11 90 0f
b6 db f0 88 c8 07 db 6d f8 54 54 54 54 ff ff
Jan 16 20:31:58 DEBUG[8628] mtp.c: Got MSU on link 'g1' sio=5 slc=1
m.sls=0 bsn=1/8, fsn=1/25, sio=c5, len=16: a6 0f e8 13 01
00 19 01 01 05 1e ff 7f ff 7f
Jan 16 20:31:58 DEBUG[8628] chan_ss7.c: processing ISUP message,
typ=CGU, CIC=1
Jan 16 20:31:58 DEBUG[8628] mtp.c: Queue MSU, lsi=0, last_send_ix=0,
linkset=siuc, m->link=g1
Jan 16 20:31:58 DEBUG[8628] mtp.c: Sending buffer to zaptel len=19, on
link 'g1'.
Jan 16 20:32:04 DEBUG[8628] mtp.c: Last raw bits on link 'g1': 19 7e 91
99 00 de 19 7e 91 99 00 de 19 7e 91 99 00 de 19 7e 91
99 00 de 19 7e 91 99 99 00 de 19 7e 91 99 00
Jan 16 20:32:04 DEBUG[8628] mtp.c: MTP2 bitstream frame format error,
entering octet counting mode on link 'g1'.
Jan 16 20:32:04 DEBUG[8628] mtp.c: Last raw bits on link 'g1': 7e 91 99
00 de 19 7e 91 99 00 de 19 7e 91 99 00 de 19 7e 91 99
00 de 19 7e 91 94 54 54 54 54 54 ff ff ff ff
Jan 16 20:32:10 DEBUG[8628] mtp.c: MTP2 bitstream frame format error,
entering octet counting mode on link 'g1'.
Jan 16 20:32:10 DEBUG[8628] mtp.c: Last raw bits on link 'g1': 99 00 de
19 7e 91 99 00 de 19 7e 91 99 00 de 19 7e 91 99 00 de
19 7e 91 99 00 de a8 a8 a8 a8 a8 ff ff ff ff
-------------------------------------------------------------------
And these too
-------------------------------------------------------------------
Jan 15 15:47:21 NOTICE[4797] mtp.c: Full MTP receivebuf, event lost.
Jan 15 15:47:22 NOTICE[4797] mtp.c: Full MTP receivebuf, event lost.
Jan 15 15:47:23 NOTICE[4797] mtp.c: Full MTP receivebuf, event lost.
Jan 15 15:47:24 NOTICE[4797] mtp.c: Full MTP receivebuf, event lost.
Jan 15 15:47:24 NOTICE[4797] mtp.c: Full MTP receivebuf, event lost.
Jan 15 15:47:25 NOTICE[4797] mtp.c: Full MTP receivebuf, event lost.
Jan 15 15:47:26 NOTICE[4797] mtp.c: Full MTP receivebuf, event lost.
Jan 15 15:47:27 NOTICE[4797] mtp.c: Full MTP receivebuf, event lost.
Jan 15 15:47:27 NOTICE[4797] mtp.c: Full MTP receivebuf, event lost.
Jan 15 15:47:28 NOTICE[4797] mtp.c: Full MTP receivebuf, event lost.
Jan 15 15:47:29 NOTICE[4797] mtp.c: Full MTP receivebuf, event lost.
Jan 15 15:47:30 NOTICE[4797] mtp.c: Full MTP receivebuf, event lost.
Jan 15 15:47:30 NOTICE[4797] mtp.c: Full MTP receivebuf, event lost.
Jan 15 15:47:31 NOTICE[4797] mtp.c: Full MTP receivebuf, event lost.
Jan 15 15:47:32 NOTICE[4797] mtp.c: Full MTP receivebuf, event lost.
Jan 15 15:47:33 NOTICE[4797] mtp.c: Full MTP receivebuf, event lost.
Jan 15 15:47:33 NOTICE[4797] mtp.c: Full MTP receivebuf, event lost.
Jan 15 15:47:34 NOTICE[4797] mtp.c: Full MTP receivebuf, event lost.
-------------------------------------------------------------------
and my links never used to come up, I have already put the right opc
and dpc codes. And that was the story while i used chan_ss7-0.9.tar.gz,
after which i thought to degrade to chan_ss7-0.8.4.tar.gz, and voila,
my calls started maturing, but still, I keep on seeing the following on
CLI ALL the while
-------------------------------------------------------------------
Jan 16 21:33:51 NOTICE[9731]: mtp.c:1227 mtp2_read_su: MTP2 CRC error
(CRC=0x74b0 != 0xf0b8) on link 'g1'.
Jan 16 21:34:03 NOTICE[9731]: mtp.c:1227 mtp2_read_su: MTP2 CRC error
(CRC=0x1641 != 0xf0b8) on link 'g1'.
Jan 16 21:34:39 NOTICE[9731]: mtp.c:1227 mtp2_read_su: MTP2 CRC error
(CRC=0xc57f != 0xf0b8) on link 'g1'.
Jan 16 21:38:07 NOTICE[9731]: mtp.c:1227 mtp2_read_su: MTP2 CRC error
(CRC=0xa3fe != 0xf0b8) on link 'g1'.
Jan 16 21:38:13 NOTICE[9731]: mtp.c:1227 mtp2_read_su: MTP2 CRC error
(CRC=0x850 != 0xf0b8) on link 'g1'.
Jan 16 21:38:32 NOTICE[9731]: mtp.c:1227 mtp2_read_su: MTP2 CRC error
(CRC=0x2661 != 0xf0b8) on link 'g1'.
Jan 16 21:39:23 NOTICE[9731]: mtp.c:1227 mtp2_read_su: MTP2 CRC error
(CRC=0x2af != 0xf0b8) on link 'g1'.
-------------------------------------------------------------------
And after some time, my ss7 link goes down automatically for some crazy
reason, and i need to stop and start asterisk, and the links come up,
but still i keep on getting the MTP2 CRC Error flooding my CLI screen
and the log.
when ss7 link goes down, it shows Blocked Remote Hardware, the guys on
the Switch end say that my machine is sending too much of negative
slips (its a Nokia MSC)
I would like to know if any one faced this, i also surfed through
archives, but that issue was pertaining to some IRQ issues but my
machine has seperate IRQ for my TE110P card.
--------------------------------------------------------------------------
root at Torque:/usr/src/new# cat /proc/interrupts
CPU0 CPU1
0: 10899129 63 IO-APIC-edge timer
1: 2910 9 IO-APIC-edge i8042
7: 0 0 IO-APIC-edge parport0
8: 2 1 IO-APIC-edge rtc
9: 2901 10 IO-APIC-level acpi
12: 494 4 IO-APIC-edge i8042
14: 1386191 1 IO-APIC-edge libata
15: 96849 1 IO-APIC-edge libata
169: 998091 1 IO-APIC-level uhci_hcd:usb2, uhci_hcd:usb5, eth0
177: 14 1 IO-APIC-level aic79xx
185: 14 1 IO-APIC-level aic79xx
193: 0 0 IO-APIC-level uhci_hcd:usb4
201: 0 0 IO-APIC-level ehci_hcd:usb1
209: 0 0 IO-APIC-level uhci_hcd:usb3
217: 255807 1 IO-APIC-level eth1
225: 108940513 1 IO-APIC-level wcte11xp
NMI: 0 0
LOC: 10894134 10894133
ERR: 0
MIS: 0
--------------------------------------------------------------------------------
Any help with this would be helpful.
Thanks & Regards,
Mitul Limbani,
Founder & CEO,
Enterux Solutions,
The Enterprise Linux Company (TM),
www.enterux.com
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