Re: [IUA] SCTP RI missing in IUA FSM
Santhana <[email protected]>
| Newsgroups | gmane.ietf.sigtran |
|---|---|
| Message-ID | <[email protected]> |
Hi Brian Thanks for ur clarification. In IUA ASP FSM, it is mentioned like this for SCTP-CDI. "SCTP CDI: The local SCTP layer's Communication Down Indication to the Upper Layer Protocol (IUA) on an SG. The local SCTP will send this indication when it detects the loss of connectivity to the ASP's peer SCTP layer. SCTP CDI is understood as either a SHUTDOWN COMPLETE notification and COMMUNICATION LOST notification from the SCTP." I guess the same applies even for SCTP-RI. Suppose in an IUA SGP-ASP relation, where SGP is working as SCTP Server and ASP as SCTP Client. By the above RFC statements, it implies that the restart can be initiated only by the ASP side by sending INIT(and hence the RI to the Upper Layer Protocol (IUA) on an SG). As per my SCTP understanding, once an association is established, any EndPoint can send INIT to restart the association. Does the above RFC statement prohibit a restart initiation from SGP side by sending INIT in the already establilshed SCTP association. In simple words can an SCTP restart triggered from the SGP side of IUA ? Regards Santhanakrishnan -----Original Message----- From: Brian F. G. Bidulock [mailto:[email protected]] Sent: Thursday, February 04, 2010 2:50 PM To: Santhana Cc: [email protected] Subject: Re: [Sigtran] [IUA] SCTP RI missing in IUA FSM Santhana, RFC 3057 dates back a ways, and IUA was the first SIGTRAN WG product (other than SCTP and the framework docs) to go to RFC. I don't think that SCTP RI missing has any real significance. It is always at the SCTP receiver's discretion to treat SCTP RI as SCTP CI. --brian Santhana wrote: (Thu, 04 Feb 2010 10:59:07) > > Hi Brian > > In IUA RFC 3057, it does not describe about processing of > SCTP-RI in the IUA FSM. I could see SCTP-RI mentioned in other UAs. Is > it some miss in the IUA RFC, or it has some special insight ? > > > Regards > > Santhanakrishnan > _______________________________________________ > Sigtran mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/sigtran -- Brian F. G. Bidulock [email protected] http://www.openss7.org/