[asterisk-users] Terrible dahdi_test results

[Mike Leddy]

Hi Russ,

I rebooted the machine loading dahdi_dummy in /etc/modules before
the /etc/init.d/dahdi.

Now dahdi_test shows a nearly perfect score:

# dahdi_test 
Opened pseudo dahdi interface, measuring accuracy...
99.998% 99.990% 99.998% 99.996% 99.998% 99.998% 99.997% 99.997% 
99.998% 99.997% 99.998% 99.997% 99.998% 99.998% 99.997% 99.998% 
99.997% 99.997% 99.997% 99.998% 99.997% 99.998% 99.998% 99.997% ^C
--- Results after 24 passes ---
Best: 99.998% -- Worst: 99.990% -- Average: 99.997188%
Cummulative Accuracy (not per pass): 99.997

When I connect a live E1 to the card it does work but I get a fair
number of:

[May 15 15:10:39] NOTICE[4017] chan_dahdi.c: PRI got event: HDLC Bad FCS (8) on D-channel of span 1
[May 15 15:10:42] NOTICE[4017] chan_dahdi.c: PRI got event: HDLC Bad FCS (8) on D-channel of span 1
[May 15 15:10:43] NOTICE[4017] chan_dahdi.c: PRI got event: HDLC Bad FCS (8) on D-channel of span 1
[May 15 15:10:43] NOTICE[4017] chan_dahdi.c: PRI got event: HDLC Bad FCS (8) on D-channel of span 1
[May 15 15:10:43] NOTICE[4017] chan_dahdi.c: PRI got event: HDLC Bad FCS (8) on D-channel of span 1
[May 15 15:10:45] NOTICE[4017] chan_dahdi.c: PRI got event: HDLC Bad FCS (8) on D-channel of span 1
[May 15 15:11:01] NOTICE[4017] chan_dahdi.c: PRI got event: HDLC Bad FCS (8) on D-channel of span 1
[May 15 15:11:01] NOTICE[4017] chan_dahdi.c: PRI got event: HDLC Bad FCS (8) on D-channel of span 1
[May 15 15:11:06] NOTICE[4017] chan_dahdi.c: PRI got event: HDLC Bad FCS (8) on D-channel of span 1
[May 15 15:11:12] NOTICE[4017] chan_dahdi.c: PRI got event: HDLC Bad FCS (8) on D-channel of span 1
[May 15 15:11:12] NOTICE[4017] chan_dahdi.c: PRI got event: HDLC Bad FCS (8) on D-channel of span 1
[May 15 15:11:12] NOTICE[4017] chan_dahdi.c: PRI got event: HDLC Bad FCS (8) on D-channel of span 1
[May 15 15:11:13] NOTICE[4017] chan_dahdi.c: PRI got event: HDLC Bad FCS (8) on D-channel of span 1

Resulting in:

[May 15 15:10:34] NOTICE[4017] chan_dahdi.c: PRI got event: Alarm (4) on D-channel of span 1
[May 15 15:10:39] NOTICE[4017] chan_dahdi.c: PRI got event: Alarm (4) on D-channel of span 1
[May 15 15:10:43] NOTICE[4017] chan_dahdi.c: PRI got event: Alarm (4) on D-channel of span 1
[May 15 15:10:44] NOTICE[4017] chan_dahdi.c: PRI got event: Alarm (4) on D-channel of span 1
[May 15 15:10:45] NOTICE[4017] chan_dahdi.c: PRI got event: Alarm (4) on D-channel of span 1
[May 15 15:11:13] NOTICE[4017] chan_dahdi.c: PRI got event: Alarm (4) on D-channel of span 1
[May 15 15:11:17] NOTICE[4017] chan_dahdi.c: PRI got event: Alarm (4) on D-channel of span 1
[May 15 15:11:22] NOTICE[4017] chan_dahdi.c: PRI got event: Alarm (4) on D-channel of span 1

Not usable in production but getting a lot closer.

Is there anything else that can be done to improve this ?

Best regards,

Mike