<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Changing some of the label structure breaks Q.704. Point 15.2 of Q.704 says that the label structure has 4 bits for SLC, 14 for OPC and 14 for DPC (total-32). So you have only 4 bits (D'16) to handle the links and there is no PSTN switch supporting other than 4 bits. Doesn't make any sense at all to change something to being incompatible with the rest of the network :)</div><div>Also, the ITU-T SS7 recommendations says that you shouldn't handle more than 2000 CICs per link. So with 32 E1 and 2 links you have less than a quarter of the recommended load on those two links.</div><div><br></div><div><div>Gustavo</div><div><br></div><div><br><div><div>On 17 May 2010, at 15:05, Jorge Antillon wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">
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Gustavo,<br>
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Well, what are the implications?, will that break some intricate logic into the SS7 stack or just break the standard set forth in Q.704?<br>
so that's for one, for two, there is that additional patch to be applied to chan_ss7 when having more than one signaling channel on a single cluster.<br>
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Jorge Antillon<br>
CEO - CTO<br>
ticom - Costa Rica Telecom
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On Mon, 2010-05-17 at 14:19 -0300, Gustavo Marsico wrote:
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<pre>This is not CAS, you don't need a link per E1. As defined in Q.704, you cannot have more than 16 links per linkset (only 4 bits for SLC). The most common configuration is to have al least 2 links. For 32 E1 (992 CICs) you don't need more than 2 links. Or 4 links, 2 per server if you like.
Gustavo
On 17 May 2010, at 14:04, Arafath-uz-zaman khan wrote:
> Hello Wasim
>
> Thanks for your mail. Yes i changed that setting's early, but i m confused
> if that effect, Cause i will go for a large installation after few days. so
> just to confirm if i need to change anything more on the code.
>
> Thanks again
> Arafath
>
> On Mon, May 17, 2010 at 1:40 PM, Arafath-uz-zaman khan <<a href="mailto:shaon.khan@gmail.com">shaon.khan@gmail.com</a>
>> wrote:
>
>> Hello all
>>
>> I was trying to configure total 32 E1( 16 E1 per server) using sangoma
>> card. I got following msg when i am trying to run mtp3d " *config.c:707
>> load_config_link Too many links defined for linkset 'MSC1' for link 'l17'
>> (max 16)* " . How can use more E1 with chan_ss7, does anyone have any
>> patch or information, so i can use. Please guide me
>>
>> Best Regards
>> Arafath
>> --
>>
>>
>
>
> --
> Arafath-uz-zaman khan
> --
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