Post by laweyPost by Justa LurkerPost by TPost by Justa LurkerPost by a***@gmail.comHey all, can any one please tell me if it is possible to transport IP
over ss7 protocol TDM links? and how to do that if it is possible.
thanks
Why do you want to do this ?
I'm wondering too since SS7 is a signalling protocol for the most part.
Oh it does other things like lookups, but it's all a proprietary setup.
Yes.....I'm wondering if he is looking for answer to a homework problem
or take-home exam/project of some kind. It seems to fit that paradigm
based on several clues.
If it is a legitimate request, then more details will be helpful in
responding.
looool no its not about a home work, am a core network team leader for
a foriegn company in my country and we have problems in transmision
lines, we have the new 3GCN ALL IP CDMA network to be built and am
responsible for it, in this network we have the MGW connected to the
MSCe throuth the transmision lines which are bad as i said so i want
to create a backup system ( i thought to use for example VPN for the
connection between the MGW and the MSCe through the internet) and am
looking if i can solve the problem by routing the packetes through the
current switchs available but as u know these switch carries TDM lines
with SS7 potocols, so if i can encapsolate the IP packets in the SS7
msg then it would be perfect for me.
i hope this can explains
Thanks for further details.
If I understand what you are trying to do, you want an alternate path
for the H.248 MGCP IP traffic between the MGW and MSCe due to some
transmission problems. You are asking about somehow encapsulating those
IP packets into SS7 and using the more reliable SS7 network to deliver it.
Well, there a lot of work has been done on transporting SS7 over IP
links, but it sounds like you want the opposite :-) I notice you also
asked about this on the Ethereal development forum with no replies.
While I suppose it is conceptually possible to do the necessary
interworking in order to carry an IP packet as a Q.77x TCAP message and
get it to its proper destination, I'm not aware of any off-the-shelf
implementation for this purpose.
I think you're much better off spending your time & energy getting your
circuits between the MGW and MSCe fixed up somehow.
It does sound like your the 56 kbps (or 64 kbps) signalling links are
more reliable than your IP network. Here's a thought, maybe you can
skip all the SS7 stuff and just get access to a couple of unused or
spare links which you can then connect to serial ports on your IP
routers at each site. Run HDLC or PPP or whatever on these links, and
then just cost them appropriately so that the traffic uses them whenever
there is a problem on the original IP network.
Does that match up with what you are asking, or did I misunderstand what
you wrote ?