Re: [Tsvwg] SCTP applicability statement

Allison,

So, is your answer no?

Is it fair to say that SCTP does not support failover between
multi-homed hosts, between associations, your second case?

Are you saying that applications such as SIGTRAN, RSERPOOL, AAA,
must implement their own sequence numbers and acknowledgements
and retransmission queues between associations?

--brian

Allison Mankin wrote:                                     (Sun, 04 Nov 2001 16:22:14)
>
> > Does SCTP support failover between multi-homed hosts?
> > 
> > 
> > Is failover between multi-homed hosts within the scope of SCTP?
> 
> Brian,
> 
> SCTP's multi-homing has no relation to anything between*
> hosts, only between interfaces of one host.  There might be
> some kind of cluster that appears to its SCTP peer be one host 
> with multiple interfaces, but it would not be within the scope
> of SCTP to know about the cluster. 
> 
> In draft-ietf-aaa-transport-04.txt, section 3.2. there's a 
> good discussion of failover/failback, which distinguishes
> among:
> 
> - what a cluster does in its cluster OS or cluster communication
>   system 
> - what application-level watchdogs do, where the failover is among
>   multiple potential peers (here AAA servers)
> - what SCTP does
> 
> If all interfaces of an SCTP host are down, that's the second case.
> 
> Allison
> 
> 
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-- 
Brian F. G. Bidulock
bidulock@openss7.org
http://www.openss7.org/

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