Re: Doubt abt usage of NOTIFY message.
"Mohammad Arif" <[email protected]>
| Newsgroups | gmane.ietf.sigtran |
|---|---|
| Message-ID | <[email protected]> |
Hi Ankit, Thanks for your reply. Its clear for me now. On 10/27/07, Ankit Kumar Sharma <[email protected]> wrote: > > Arif, > > On 10/26/07, Mohammad Arif <[email protected]> wrote: > > > Hi Ankit, > > Thanks, > > That means after sending ASP ACTIVE/ ASP INACTIVE we have to immediately > > send NOTIFY? > > > > No, you may send Notify after sending ASP Active ACK/ASP INActive Ack > > > > > Sending ASP ACTIVE means that particular AS is active so why sending > > Notify message again?. > > Its like using 2 messages to do one job.... > > > > Example which you have described is a very basic one, but every > protocol should be able to handle complex scenarios as well. > > Just think of a scenario where your AS has 4 ASPs and SGP/IPSP > thinks(configured) that at least two of them should be in Active state to > handle traffic for that AS. In this case after sending ASP-Active-Ack for > first ASP, SGP has every right to hold Notify message until it receives > ASP-Active from any other ASP. After which SGP/IPSP could notify the new > state of AS to respective ASPs. Please read RFC section 4.3.4 for more > details. > > > > I will be very grateful if you clarify this. > > > > Thanks > > > > > > On 10/26/07, Ankit Kumar Sharma <[email protected] > wrote: > > > > > > Arif, > > > > > > On 10/26/07, Mohammad Arif < [email protected] > wrote: > > > > > > > > Hi All, > > > > > > > > I have a scenario where in there are just two IPSPs ( IPSP1 and > > > > IPSP2) and each IPSP has just one AS. > > > > So do i need to send NOTIFY messages for change in IPSP AS states or > > > > just sending ASP_ACTIVE ans ASP_INACTIVE messages to remote IPSP is enough? > > > > > > > > > > As per protocol, you must send notify message to indicate changes in > > > AS state. Please refer to section 4.3.4.5 of RFC 4666 for more > > > details. > > > > > > I think NOTIFY messages will come into picture only if there are more > > > > than two IPSPs. > > > > > > > > > > > > > > > > -- > > > > Regards > > > > Mohammad Arif > > > > > > > > > > Cheers, > > > Ankit > > > > > > > > > > > > > > -- > > Regards > > Mohammad Arif > > > -- Regards Mohammad Arif _______________________________________________ Sigtran mailing list [email protected] https://www1.ietf.org/mailman/listinfo/sigtran