Hi,
I modified now for a try the mtp2.c for libss7 and recompiled/installed
it. I did this:
"so try put
link->state = MTP_IDLE; before calling mtp2_setstate() in t2_expiry.
I think it will solve the problem..."
Not successful.
Statement of the provider regarding the T2 timer test:
"When we deactivate the link, it results in signal SIOS from our side -
to inform your side that link is down; from this moment our side is
dead.
Your side should react by SIO; then, when you don?t get any SIO answer
from our side (of course, because link is down)you should sent SIOS
after some period, immediately followed by next SIO - and then
periodically repeat this sequence until SIO from our side appears (in a
moment, when link is acivated)
The time interval between your SIO and your SIOS should be in duration
from 5 to 150sec and this is Timer2 definition. (For example, our system
has defined this value to 30sec)"
The statement to this after I did this change Attila suggested:
"The only change in your system behaviour, that you (when we deactivate
the link) send 3 times SIO; no SIOS."
Currently I have the default MTP2 T2 setting = 50 seconds thats in the
range of their specifiactions (they have 30).
Kind Regards,
Erik
> >
> > Am Montag, den 23.11.2009, 14:02 +0200 schrieb Kaloyan Kovachev:
> > > Erik,
> > > can you check with your provider how often they expect to have SIO transmitted?
> > > ITU_TIMER_T2 (5-150 sec according to Q.703 12.3) is currently set to 50sec
> > > (in mtp2.h), but if they expect it to be the minimum 5sec you may need to
> > > change that value.
> > > Also according to Q.703 7.3 (note 4):
> > >
> > > If automatic allocation of signalling terminals or signalling data links is
> > > applied at both ends of a
> > > signalling link, it must be ensured that the values of this time-out are
> > > different at each end of a signalling
> > > link (see clause 12/Q.704). In this case T2 low (see 12.3) is allocated to the
> > > signalling point with the lower
> > > point code and T2 high to the signalling point with the higher point code. In
> > > all other cases, the value of
> > > time-out T2 can be the same at both ends of the link.
> > >
> > > So you may need to set it to either of:
> > > T2 low = 5-50 s
> > > T2 high = 70-150 s
> > >
> > > Otherwise the code seems fine
> > >
> > > On Mon, 23 Nov 2009 11:00:48 +0100, Erik Wartusch wrote
> > > > Hi,
> > > >
> > > > Good to hear about the progress.
> > > > Would be really great If you can solve this MTP2 problem and merge to
> > > > the trunk.
> > > > My boss asked us allready to switch the two lines from libss7 to the
> > > > commercial ss7box (Sangoma) we also use for other carriers. Would be sad
> > > > (and expensive for several reasons) to do so...
> > > >
> > > > Regards,
> > > > Erik
> > > >
> > > > Am Freitag, den 20.11.2009, 20:37 +0100 schrieb Domjan Attila:
> > > > > Thanks the test, next weak I will merge to the trunk and examine the
> > > > > mtp2 problem, first of all I read the itu standard...
> > > > >
> > > > > On Fri, 2009-11-20 at 19:08 +0200, Kaloyan Kovachev wrote:
> > > > > > On Fri, 20 Nov 2009 15:36:49 +0100, Attila Domjan wrote
> > > > > > > Hi, I made a test branch...
> > > > > > >
> > > > > > > svn co
> > > > > > > https://observer.router.hu/repos_pub/libss7/accept_any_sls_tfp_tfa
> > > > > > > libss7
> > > > > > >
> > > > > > > We accept TRA, TFP, TFA, and the not impelented yet TFR with any SLS.
> > > > > > > Please test, if it's work I will merge into my trunk.
> > > > > > >
> > > > > >
> > > > > > Positive! The link came up immediately, got CIC resets (remotely blocked at
> > > > > > the moment) and T19 started then expired at time.
> > > > > >
> > > > > > > A
> > > > > > >
> > > > > > > On Thu, 2009-11-19 at 16:35 +0200, Kaloyan Kovachev wrote:
> > > > > > > > On Thu, 19 Nov 2009 12:32:58 +0100, Attila Domjan wrote
> > > > > > > > > On Thu, 2009-11-19 at 13:10 +0200, Kaloyan Kovachev wrote:
> > > > > > > > > Hi,
> > > > > > > > > >
> > > > > > > > > > Domian, do you know which ITU specs I should look at to confirm (or
> > > > > > not), that
> > > > > > > > > > in case of a single link SLS != 0 should be accepted?
> > > > > > > > > >
> > > > > > > > > not...
> > > > > > > > >
> > > > > > > > > Q.704 2.2.4
> > > > > > > > > ........
> > > > > > > > >
> > > > > > > > > In the case of Message Transfer Part level 3 messages, the signalling
> > > > > > > > > link selection field exactly
> > > > > > > > > corresponds to the Signalling Link Code (SLC) which indicates the
> > > > > > > > > signalling link between the
> > > > > > > > > destination point and originating point to which the message refers.
> > > > > > > > >
> > > > > > > >
> > > > > > > > Thank you very much for the pointer. I am looking at Q.704 and it
> > > seems that
> > > > > > > > the provider (or Siemens) might also be right about SLS being
> > > ignored on a
> > > > > > > > single link:
> > > > > > > >
> > > > > > > > 2.2.4 The Signalling Link Selection (SLS) field is used, where
> > > appropriate, in
> > > > > > > > performing load sharing (see 2.3).
> > > > > > > >
> > > > > > > > That 'where appropriate' makes me think so, but not sure. I will
> > > keep reading,
> > > > > > > > but at least for TFA/TFP messages that i got (to SLS 4, 6, 13... ),
> > > it seems
> > > > > > > > to be true (in 13.3.1):
> > > > > > > >
> > > > > > > > Transfer-allowed messages are always addressed to an adjacent signalling
> > > > > > > > point. They may use any
> > > > > > > > available signalling route that leads to that signalling point.
> > > > > > > >
> > > > > > > >
> > > > > > > > > > > Thanks in advance.
> > > > > > > > > > >
> > > > > > > > > > > Regards,
> > > > > > > > > > >
> > > > > > > > > > > Erik
> > > > > > > > > > >
> > > > > > > > > > > Am Mittwoch, den 18.11.2009, 20:56 +0100 schrieb Domjan Attila:
> > > > > > > > > > > > Hi,
> > > > > > > > > > > > I think u got TRA with wrong SLS, the stp which are u
> > > connected 2 is
> > > > > > > > > > > > missconfigured...
> > > > > > > > > > > > workaround: set mtp3 t19 timer to 1ms....
> > > > > > > > > > > >
> > > > > > > > > > > > On Wed, 2009-11-18 at 18:30 +0200, Kaloyan Kovachev wrote:
> > > > > > > > > > > > > Hello Domian,
> > > > > > > > > > > > > i have a similar (almost sure _the same_) problem:
> > > > > > > > > > > > > at least in my case i got TRA, but instead of:
> > > > > > > > > > > > >
> > > > > > > > > > > > > "OPC XXX DPC YYY SLS 0" it was to "OPC XXX DPC YYY SLS 2"
> > > also i get
> > > > > > > > > > some TFP
> > > > > > > > > > > > > and TFA to diferent SLS like 4, 6, 11, 13
> > > > > > > > > > > > >
> > > > > > > > > > > > > while STD_TEST messages are correctly replied to "OPC XXX
> > > DPC YYY
> > > > > > > > SLS 0", so
> > > > > > > > > > > > > the link remained as:
> > > > > > > > > > > > > "Adjecent SP PC: XXX STATE: DOWN"
> > > > > > > > > > > > > but
> > > > > > > > > > > > > "State: INSERVICE, UP"
> > > > > > > > > > > > >
> > > > > > > > > > > > > unfortunately i can't find the full debug log right now, but
> > > > > > will keep
> > > > > > > > > > > > > searching where it was saved :(
> > > > > > > > > > > > >
> > > > > > > > > > > > > On Wed, 18 Nov 2009 17:14:43 +0100, Attila Domjan wrote
> > > > > > > > > > > > > > interesting, have u got TRA messages?
> > > > > > > > > > > > > > The linkset was in operational state?
> > > > > > > > > > > > > > please send me the current chan_dahdi.conf
> > > > > > > > > > > > > >
> > > > > > > > > > > > > > On Wed, 2009-11-18 at 17:05 +0100, Erik Wartusch wrote:
> > > > > > > > > > > > > > > Hello Attila!
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > I can send you what happend if they switched off the
> > > link via
> > > > > > > > software
> > > > > > > > > > > > > > > command (Siemens EWSD). (see txt attached).
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > Im afraid I dont have the output of "ss7 show linkset
> > > 1". but Im
> > > > > > > > pretty
> > > > > > > > > > > > > > > sure it was like this (when the link was set to down
> > > from their
> > > > > > > > side):
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > ss7 show
> > > > > > > > > > > > > > > calls cics linkset
> > > > > > > > > > > > > > > srv27*CLI> ss7 show linkset 1
> > > > > > > > > > > > > > > SS7 flags: 0x0
> > > > > > > > > > > > > > > SS7 linkset 1 status: Down
> > > > > > > > > > > > > > > SS7 calling nai: -1
> > > > > > > > > > > > > > > SS7 called nai: -1
> > > > > > > > > > > > > > > SS7 nationalprefix:
> > > > > > > > > > > > > > > SS7 internationalprefix:
> > > > > > > > > > > > > > > SS7 unknownprefix:
> > > > > > > > > > > > > > > SS7 networkroutedprefix:
> > > > > > > > > > > > > > > SS7 subscriberprefix:
> > > > > > > > > > > > > > > Switch type: ITU
> > > > > > > > > > > > > > > Our point code: 4297
> > > > > > > > > > > > > > > SLS shift: 0
> > > > > > > > > > > > > > > numlinks: 1
> > > > > > > > > > > > > > > numsps: 1
> > > > > > > > > > > > > > > ---------------------------------
> > > > > > > > > > > > > > > Adjecent SP PC: 5921 STATE: Down
> > > > > > > > > > > > > > > TRA: GOT SENT T19: not running T21: not running
> > > > > > > > > > > > > > > Routes:
> > > > > > > > > > > > > > > DPC State T6 T10
> > > > > > > > > > > > > > > Link SLC: 0 NetMngSLS: 0
> > > > > > > > > > > > > > > State: INSERVICE, UP
> > > > > > > > > > > > > > > STD Test: passed
> > > > > > > > > > > > > > > Got, sent :
> > > > > > > > > > > > > > > Inhibit:
> > > > > > > > > > > > > > > Changeover: NO
> > > > > > > > > > > > > > > Tx buffer: 0
> > > > > > > > > > > > > > > Tx queue: 0
> > > > > > > > > > > > > > > Retrans pos 0
> > > > > > > > > > > > > > > CO buffer: 0
> > > > > > > > > > > > > > > CB buffer: 0
> > > > > > > > > > > > > > > Last FSN: 71
> > > > > > > > > > > > > > > MTP3timers: Q707_T2(12s) [here im not sure this was
> > > > > > running)
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > So sadly we got today again a negative result (test
> > > not passed)
> > > > > > > > of the
> > > > > > > > > > > > > > > czech telco so we can not go live with the SS7 link...
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > Kind Regards,
> > > > > > > > > > > > > > > Erik
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > Am Mittwoch, den 11.11.2009, 16:10 +0100 schrieb
> > > Attila Domjan:
> > > > > > > > > > > > > > > > Hmm, it is interesting...
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > static void t2_expiry(void * data)
> > > > > > > > > > > > > > > > {
> > > > > > > > > > > > > > > > struct mtp2 *link = data;
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > mtp2_setstate(link, MTP_IDLE);
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > return;
> > > > > > > > > > > > > > > > }
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > int mtp2_setstate(struct mtp2 *link, int newstate)
> > > > > > > > > > > > > > > > ....
> > > > > > > > > > > > > > > > case MTP_IDLE:
> > > > > > > > > > > > > > > > link->t2 = ss7_schedule_event(link->master,
> > > > > > link->timers.t2,
> > > > > > > > > > > > > > > > t2_expiry, link);
> > > > > > > > > > > > > > > > if (mtp2_lssu(link, LSSU_SIO)) {
> > > > > > > > > > > > > > > > mtp_error(link->master, "Unable to transmit initial
> > > > > > LSSU\n");
> > > > > > > > > > > > > > > > return -1;
> > > > > > > > > > > > > > > > }
> > > > > > > > > > > > > > > > link->state = MTP_NOTALIGNED;
> > > > > > > > > > > > > > > > return 0;
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > it is coded, periodically send SIO....
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > what is the link state in this case? (ss7 show
> > > linkset ...)
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > A
> > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > On Wed, 2009-11-11 at 15:46 +0100, Erik Wartusch wrote:
> > > > > > > > > > > > > > > > > Hi Attila!
> > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > I like your version. Thanks. Still I have problems to
> > > > > > pass a MTP
> > > > > > > > > > level 2
> > > > > > > > > > > > > > > > > test wanted by a czech telco.
> > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > It's regarding sending SIO / SIOS messages when the
> > > > > > other sites
> > > > > > > > > > link is
> > > > > > > > > > > > > > > > > down (during the specified T2 timer). They claim we
> > > > > > sending not
> > > > > > > > > > > > > > > > > periodically the SIO messages (just once) until the T2
> > > > > > timer is
> > > > > > > > > > running
> > > > > > > > > > > > > > > > > out.
> > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > Any experience with that?
> > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > Kind Regards,
> > > > > > > > > > > > > > > > > Erik
> > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > Am Dienstag, den 10.11.2009, 11:30 +0100 schrieb
> > > Attila
> > > > > > Domjan:
> > > > > > > > > > > > > > > > > > Hi, don't mix the libss7/asterisk(chan_dahdi)
> > > > > > versions, there
> > > > > > > > > > are some
> > > > > > > > > > > > > > > > > > api changes.
> > > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > > My version (many additional features) are
> > > working from
> > > > > > my svn.
> > > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > > Regards,
> > > > > > > > > > > > > > > > > > Attila
> > > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > > On Mon, 2009-11-09 at 17:35 +0100, Erik Wartusch
> > > wrote:
> > > > > > > > > > > > > > > > > > > Hello ss7 list!
> > > > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > > > Installing libss7 and asterisk from
> > > > > > > > > > > > > > > > > > >
> > > http://svn.digium.com/svn/libss7/team/mattf/bug13495
> > > > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > > >
> > > http://svn.digium.com/svn/asterisk/team/mattf/bug13495
> > > > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > > > as well as:
> > > > > > > > > > > > > > > > > > > http://svn.digium.com/svn/dahdi/tools/trunk
> > > dahdi-tools
> > > > > > > > > > > > > > > > > > > http://svn.digium.com/svn/dahdi/linux/trunk
> > > dahdi-trunk
> > > > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > > > (this order: dahdi, dahdi-tools, libss7 and then
> > > > > > asterisk)
> > > > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > > > leads to the follwing error doing a "make" for the
> > > > > > Asterisk
> > > > > > > > > > > > > version (see below).
> > > > > > > > > > > > > > > > > > > Did I made any mistake or is this a bug?
> > > > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > > > Kind Regards,
> > > > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > > > Erik
> > > > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > > > [CC] chan_dahdi.c -> chan_dahdi.o
> > > > > > > > > > > > > > > > > > > chan_dahdi.c: In function ?ss7_linkset?:
> > > > > > > > > > > > > > > > > > > chan_dahdi.c:10921: error: ?ss7_event_iam? has
> > > no member
> > > > > > > > named
> > > > > > > > > > > > > > > > > > > ?cot_performed_on_previous_cic?
> > > > > > > > > > > > > > > > > > > chan_dahdi.c:10921: error: ?ss7_event_sam? has
> > > no member
> > > > > > > > named
> > > > > > > > > > > > > > > > > > > ?cot_performed_on_previous_cic?
> > > > > > > > > > > > > > > > > > > chan_dahdi.c:10929: error: ?ss7_event_iam? has
> > > no member
> > > > > > > > named
> > > > > > > > > > > > > > > > > > > ?cot_performed_on_previous_cic?
> > > > > > > > > > > > > > > > > > > chan_dahdi.c:10947: error: ?ss7_event_cot? has
> > > no member
> > > > > > > > named
> > > > > > > > > > > > > > > > > > > ?cot_performed_on_previous_cic?
> > > > > > > > > > > > > > > > > > > chan_dahdi.c: In function ?process_dahdi?:
> > > > > > > > > > > > > > > > > > > chan_dahdi.c:16660: error:
> > > ?SS7_ISDN_ACCESS_INDICATOR?
> > > > > > > > > > undeclared
> > > > > > > > > > > > > (first
> > > > > > > > > > > > > > > > > > > use in this function)
> > > > > > > > > > > > > > > > > > > chan_dahdi.c:16660: error: (Each undeclared
> > > > > > identifier is
> > > > > > > > > > reported
> > > > > > > > > > > > > only
> > > > > > > > > > > > > > > > > > > once
> > > > > > > > > > > > > > > > > > > chan_dahdi.c:16660: error: for each function it
> > > > > > appears in.)
> > > > > > > > > > > > > > > > > > > make[1]: *** [chan_dahdi.o] Error 1
> > > > > > > > > > > > > > > > > > > make: *** [channels] Error 2
> > > > > > > > > > > > > > > > > > >
> > > srv27:/usr/src/UNSTABLE_libss7/asterisk-patched# cd ..
> > > > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > > >
> > > > > > > > > > > > > > > > > > > _______________________________________________
> > > > > > > > > > > > > > > > > > > --Bandwidth and Colocation Provided by
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> > > > > > > > > > > > > > > > > > >
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> > > > > > > > > > > > >
> > > > > > > > > > > > >
> > > > > > > > > > > > > _______________________________________________
> > > > > > > > > > > > > --Bandwidth and Colocation Provided by
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> > > > > > > > > > > > >
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> > > > > > > > > > > > _______________________________________________
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> > > > > > > > > > >
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> > > > > > > > > > _______________________________________________
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> Mit freundlichen Gr??en
> Erik Wartusch
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