Re: Need ANSWER 4 these QUERIES !!
Mahantesh <[email protected]>
| Newsgroups | gmane.ietf.sigtran |
|---|---|
| Message-ID | <[email protected]> |
Hi Brain, Few more queries, and need ANSWERS 1. *In M3UA msg the version parameter can have value 0 or 1, Is version-1 has BACKWARD copatibility with vesion-0? * 2. *In loadshare mode, if a mantion [2+1] and one of the ACTIVE ASP goes down then the INACTIVE ASP should be informed to get into ACTIVE mode or an NOTIFY/ERROR msg should be sent? If ERROR, what the 1 in [2+1] is doing?* *Thanks & Rgds,* *-Mahantesh* On 11/16/06, Mahantesh <[email protected]> wrote: > > Brain, > > THANK YOU VERY MUCH, It really helped me a lot. > > > *Rgds,* > *-Mahantesh* > IntelliNet Technologies. > > > On 11/15/06, Brian F. G. Bidulock <[email protected]> wrote: > > > > Mahantesh, > > > > Please see comments below... > > > > Mahantesh wrote: (Wed, 15 Nov 2006 17:38:38) > > > > > > Hi there, > > > > > > 1. What is a Routing Context [RC] and why it is required, > > when a > > > Routing Key [RK] serves the purpose? > > > > Because an RK is a large thing with difficult decoding and the > > RC is a simple 32-bit number. Because RC is used in every > > message in the main data flow, it increases peformance and > > throughput. > > > > > > > 2. Whether 2 Application Servers [AS] can have the same RK? > > > > No they cannot. There is a 1:1:1 relationship between AS:RC:RK. > > Grep the RFC for unique. > > > > > 3. What's the main purpose of Network Appearence [NA] ? > > > > To define the format and numbering space for signalling point > > codes when the SG supports multiple signalling point code > > formats or numbering spaces and the 32-bit signalling point code > > value is not sufficient to distinguish between two signalling > > points. See definition RFC 4666 bottom of page 7. > > > > > 4. How many Associations are possible between SG and AS? > > > > Zero. An SG does not form associations to an AS: SGPs form > > associations to ASPs. > > > > Between an SGP and an ASP? Zero or one. Two is not permitted. > > If a second connection is attempted to an SGP and the SGP knows > > that it is the same ASP (from the remote or local IP address(es) > > and port and configuration) it should refuse the connection. If > > it cannot determine the ASP identity (or uniqeness) from these > > parameters, it will require an ASP Id. If a ASP Up is received > > on two associations with the same ASP Id, the second should be > > refused with error Invalid ASP Id. Note that an ASP or an SGP > > is not a piece of hardware or an IP host (although they are > > drawn that way in the examples), it can be a process or > > sub-process within a host. As such, one host can represent > > multiple ASPs, but each must have only one association to each > > SGP. > > > > > 5. How many ASPs can be in an AS? and why? > > > > Zero to unlimited. Because no minimum or maximum is placed on > > this number by the RFCs. For a loadsharing AS, there is usually > > a practical limit to the number of ACTIVE ASP in an AS (the range > > of the load sharing key, but, depending in the loadsharing key > > that number could still be very large). > > > > --brian > > > > > > -- > > Brian F. G. Bidulock > > [email protected] > > http://www.openss7.org/ > > > > > > -- > Rgrds, > -Mahantesh -- Rgrds, -Mahantesh _______________________________________________ Sigtran mailing list [email protected] https://www1.ietf.org/mailman/listinfo/sigtran