Looking further, Q.704 2.3.4.1 says:
Messages not related to a signalling link may be assigned any Signalling
Link Code (SLC) to allow load sharing of the messages, or may be assigned
a default SLC such as 0000. They are routed in accordance with the normal
routing function, where the (SLC) is used as SLS for load sharing.
Q.704 9.1:
The MTP restart procedure uses the Traffic Restart Allowed (TRA) message
which contains:
– the label, indicating the originating signalling point and the
adjacent destination signalling point;
– the traffic restart allowed signal.
Q.704 15.2:
The Signalling Link Code (SLC) indicates the signalling link, connecting
the destination and originating points, to which the message is related.
If the message is not related to a signalling link, or another particular
code is not specified, it is coded 0000.
I am not sure if I understand it correctly, but it seems to me (and to
the spc 7000's developer) that TRA is not related to a signalling link,
so SLC may be coded as 0000 and should be accepted.
mtp.3, net_mng_receive:
struct mtp2 *winner = slc_to_mtp2(mtp2->master, rl->sls);
if (!winner) {
/* Could not find the given slc */
return 0;
}
should be changed to something like:
struct mtp2 *winner = net_mng_uses_sls(*headerptr) ? slc_to_mtp2(mtp2->master,
rl->sls) : first_mtp2(mtp2->master);
(and the corresponding implementation of net_mng_uses_sls and first_mtp2)
Does this sound ok? What other NET_MNG messages aren't related to a signalling
link ?
Thanks!
H
On Tue, May 25, 2010 at 12:32:31PM -0300, Horacio J. Peña wrote:
> Hola!
>
> I'm having a problem getting a MTP3 link up. I'm not sure what SLC
> should be used but if I do the ss7_add_link with slc=1, it fails like:
> (my PC is 5000, adjpc is 7000)
>
> STD_TEST OPC 5000 DPC 7000 SLS 1 H0: 1 H1: 1
> STD_TEST OPC 7000 DPC 5000 SLS 1 H0: 1 H1: 1
> STD_TEST OPC 5000 DPC 7000 SLS 1 H0: 1 H1: 2
> STD_TEST OPC 7000 DPC 5000 SLS 1 H0: 1 H1: 2
> NET_MNG OPC 5000 DPC 7000 SLS 1 H0: 7 H1: 1 TRA
> NET_MNG OPC 7000 DPC 5000 SLS 0 H0: 7 H1: 1 TRA (not recognized)
>
> And if I use slc=0, it fails like:
>
> STD_TEST OPC 5000 DPC 7000 SLS 0 H0: 1 H1: 1
> STD_TEST OPC 7000 DPC 5000 SLS 1 H0: 1 H1: 1
> No siganlling link available sending message!
>
> STD_TEST OPC 7000 DPC 5000 SLS 1 H0: 1 H1: 1
> No siganlling link available sending message!
>
> Am I missing something?
>
> Thanks!
> --
> Horacio J. Peña
> [email protected]
> [email protected]
--
Horacio J. Peña
[email protected]
[email protected]
--
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