On 30 January 2007 19:16, Kristian Nielsen wrote: > "Jorge Churio" <jorge.churio@xxxxxxxxxxx> writes: > > Current asterisk SS7 implementations (both chan_ss7 and > > libSS7) only supports fully associated signaling that > > means signaling links must be in the same E1/T1 as > > bearer. No matter what type of link you are dealing > > with (usually A or F ones). > > Well, in chan_ss7 you should be able to configure one E1 > with only a signalling link, and another as the bearer. > But you do need at least one signalling link per chan_ss7 > box. I'm running a production box, which have 7 signalling links to different telco's with all 8 spans in use, that means if i will need to add a span to any of current telco - i'll have to move all it's E1's to a different box. That would be great to be able to have a different chan_ss7 BOX running asterisk but be using a signalling link going from different chan_ss7 box over a TCP connection than the whole system will be greatly scalable. > > > The main limitation for this configuration is that you > > can not have multiple asterisk boxes attached to a pair > > of signaling links, your asterisk switch is the > > limitated to how many trunks you can install in a > > single box. channSS7 has made some great job allowing > > clusterization but still limits the possible > > configuration schemes. > > This configuration imposes a constrain specially when > > you connect with public switches, usually telcos uses > > non associated signaling and some sort of ISUP > > redundancy. > > Yes. > > I would be interested in hearing about how big of a > restriction this is in practise? > > If we put two quad-E1 cards in each of two boxes set up > in a cluster configuration, that is already 123*4 = 492 > bearer channels (reserving two for signalling). So with > redundancy, in a failover scenario one signalling link > would be serving around 500 bearer channels. > > Is that a limitation in practise? How many bearer > channels can one reasonably run on a single signalling > link? Also wonder if it is possible to put in more > bearers in a single box? > > - Kristian.
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