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 :) 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. Gustavo On 17 May 2010, at 15:05, Jorge Antillon wrote: > Gustavo, > > 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? > 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. > > > > <ticom-t.jpg> Jorge Antillon > CEO - CTO > ticom - Costa Rica Telecom > > > > > On Mon, 2010-05-17 at 14:19 -0300, Gustavo Marsico wrote: >> >> 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 <shaon.khan at gmail.com >> >> 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 >> > -- >> > _____________________________________________________________________ >> > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >> > >> > asterisk-ss7 mailing list >> > To UNSUBSCRIBE or update options visit: >> > http://lists.digium.com/mailman/listinfo/asterisk-ss7 >> >> > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-ss7 mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-ss7 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-ss7/attachments/20100517/69d07985/attachment-0001.htm
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