Re: single/double exchange mode doubt
"Brian F. G. Bidulock" <[email protected]>
| Newsgroups | gmane.ietf.sigtran |
|---|---|
| Organization | http://www.openss7.org/ |
| Message-ID | <[email protected]> |
Ankit, Ankit Kumar Sharma wrote: (Tue, 17 Jul 2007 16:10:19) > In SE mode an AS exists at both ends of the association or > not at all. rc=x is valid in you diagram by rc=y is not. > If an AS with rc=y does not exist at IPSP-A, then it will > not be sending ASP-Active(rc=y) to IPSP-1. > Put an AS-B(rc=y) at IPSP-A and your problems vanish. > > I know this, please check one of my previous responses. I have copied > that below for your convenience: > " Corresponding to rc=y, I need to send ASP-Active towards IPSP-A. > Since there is no local AS with rc=y at IPSP-A, it would return with > error code "invalid RC", unless there is some way to instruct IPSP-A > to behave as a double-exchange IPSP for rc=y. Although I could do the > workaround by adding a dummy AS with rc=y at IPSP-A but that solution > is irrational and not so clean. " This is _not_ a workaround. An AS for rc=y at IPSP-A makes a much sense as an AS for rc=x. There is nothing irrational or unclean about it. > Whole point of this discussion is, why exchange mode(Double/Single) is > a property of IPSP, but not AS? Because it is simply not necessary. --brian -- Brian F. G. Bidulock [email protected] http://www.openss7.org/