Re: ASP Capabilities value 0x2 of interworking field

Tolga,

Tolga Asveren wrote:                                                 (Tue, 20 Dec 2005 10:15:15)
> Brian,
> 
> >
> > Not an issue at all.  Any node in the SS7 network can be an SCCP
> > relay point
> > as well.
> [TOLGA]What about in IP domain? The goal with the protocols is to define a
> sound architecture, which allows interoperability and does not allow room
> for ambiguity. IMO allowing IPSP functionality to allow relaying is against
> those principles. I also want to reemphasize that here we are speaking of
> different roles played by SUA stack, i.e. we can have SUA-node which can
> both relay and use IPSP communication. What we are discussing is, where
> those different functionalites should reside.

Functional placement is an implementation issue.

> > For M3UA relaying in the IP domain, use BGCP, firewalling, NAT, other
> > middlebxes, at the routers.  You don't need to fabricate the concept of
> > an SS7 router (STP) in the IP network to perform its functions.  Those
> > functions are already performed by IP.
> [TOLGA]People usually want/need to perform the organization/security checks
> based on the constructs of the protocol, which is payload from IP point of
> view, e.g. SS7 constructs, hence there is the need to have entities working
> on application layer from IP point of view. In any case, this is really
> besides the point for this thread.

The MTP GWS function does nothing more than an IP firewall.

--brian


-- 
Brian F. G. Bidulock
[email protected]
http://www.openss7.org/